A)ANS)In this TCPIP - System Access Layer, you will find out ab.pdf
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A) ANS) In this TCP/IP - System Access Layer, you will find out about the base most layer of TCP/IP convention suit and what are the diverse elements of TCP/IP System Access Layer. The System Access Layer of the TCP/IP model is connected with the Physical (Layer 1) and the Information Join (Layer 2) of the OSI model. The System Get to Layer\'s capacity is to move bits (0s and 1s) over the system medium. The OSI Physical layer is in charge of changing over the casing into a flood of bits reasonable for the transmission medium. The OSI Physical layer oversees and synchronizes signals for the real transmission. On the goal gadget, the Physical layer reassembles these signs into an information outline. The OSI Information Join layer is again subdivided into the accompanying two sub layers as indicated by their capacity: Media Access Control (Macintosh) Sublayer :— Macintosh sublayer furnishes an interface with the system connector. Sensible Connection Control (LLC) Sublayer :— LLC sublayer is in charge of mistake checking capacities for casings conveyed additionally in charge of overseeing connections between imparting gadgets. Structure of an Ethernet Outline The information parcels from Web Layer is moved to Network Access Layer as it moves down the TCP/IP convention stack. There is a size restriction for Ethernet Outline. The aggregate size of the ethernet outline must be between 64 bytes and 1,518 bytes (excluding the preface). System Access Layer Breaks Web Layer information (IP Datagram) into littler pieces, if essential, which will end up being the payload of ethernet casings. A Casing incorporates information to be transmitted furthermore a header and a trailer which contain data that the system connectors on the ethernet need to handle the edge. The aggregate size of the ethernet outline must be between 64 bytes and 1,518 bytes (excluding the introduction). An edge shorter than the base 64 bytes however with a legitimate CRC is called as a runt. Much of the time, such casings emerge from an impact. Any casing which is gotten and which is more prominent than the most extreme casing size, is known as a \"monster\". A \"monster\" is longer than 1518 bytes yet have a substantial CRC. Both runts and mammoths are considered as invalid. B.SFD ANS) Solution A) ANS) In this TCP/IP - System Access Layer, you will find out about the base most layer of TCP/IP convention suit and what are the diverse elements of TCP/IP System Access Layer. The System Access Layer of the TCP/IP model is connected with the Physical (Layer 1) and the Information Join (Layer 2) of the OSI model. The System Get to Layer\'s capacity is to move bits (0s and 1s) over the system medium. The OSI Physical layer is in charge of changing over the casing into a flood of bits reasonable for the transmission medium. The OSI Physical layer oversees and synchronizes signals for the real transmission. On the goal gadget, the Physical layer reassembles these signs into an information ou.
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Error Detection and Handling: The data link layer handles errors that occur at the lower levels of
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The Open Systems Interconnect (OSI) model has seven layers. this tex.pdf
The Open Systems Interconnect (OSI) model has seven layers. this text describes and explains
them, starting with the \'lowest\' within the hierarchy (the physical) and continuing to the
\'highest\' (the application). The layers area unit stacked this way:
Application
Presentation
Session
Transport
Network
Data Link
Physical
PHYSICAL LAYER
The physical layer, very cheap layer of the OSI model, worries with the transmission and
reception of the unstructured raw bit stream over a physical medium. It describes the
electrical/optical, mechanical, and useful interfaces to the physical medium, and carries the
signals for all of the upper layers. It provides:
Data encoding: modifies the easy digital signal pattern (1s and 0s) employed by the computer to
higher accommodate the characteristics of the physical medium, and to help in bit and frame
synchronization. It determines:
What signal state represents a binary one
How the receiving station is aware of once a \"bit-time\" starts
How the receiving station delimits a frame
Physical medium attachment, accommodating varied potentialities within the medium:
Will associate degree external transceiver (MAU) be accustomed connect with the medium?
How many pins do the connectors have and what\'s every pin used for?
Transmission technique: determines whether or not the encoded bits are transmitted by baseband
(digital) or broadband (analog) signal.
Physical medium transmission: transmits bits as electrical or optical signals applicable for the
physical medium, and determines:
What physical medium choices will be used
How many volts/db ought to be accustomed represent a given signal state, employing a given
physical medium
DATA LINK LAYER
The data link layer provides error-free transfer of information frames from one node to a
different over the physical layer, permitting layers on top of it to assume just about error-free
transmission over the link. To do this, the info link layer provides:
Link institution and termination: establishes and terminates the logical link between 2 nodes.
Frame traffic control: tells the transmittal node to \"back-off\" once no frame buffers area unit
obtainable.
Frame sequencing: transmits/receives frames consecutive.
Frame acknowledgment: provides/expects frame acknowledgments. Detects and recovers from
errors that occur within the physical layer by retransmitting non-acknowledged frames and
handling duplicate frame receipt.
Frame delimiting: creates and acknowledges frame boundaries.
Frame error checking: checks received frames for integrity.
Media access management: determines once the node \"has the right\" to use the physical
medium.
NETWORK LAYER
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to take supported network conditions, priority of service, and different factors. It provides:
Routing: routes frames among networks.
Subnet traffic control: routers (network layer intermediate systems) will instruct a causing
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1) MODERN TIMES is a very well prepared movie that describes the miserable conditions of
humar resource during the period of industrialization era or machine age worlwide. It is a mix of
social drama and comedy. The content is presented in a satire. How did people survived the great
depression of the world is being documented here. The conditions werre miserable like acute
shortage of work, factory closings, labor strikes and political unrest etc. It is a symbolic
representation of what happens to a human being caught up in the mechanical bureaucracy of the
intellectual state.
2) Economically it could be understood that what miser situations could depression bring up.
Food and jobs comes hard in hand. To which a labor is convict to do under skill jobs as well for
survival. At the time of the great depression Americans had to fight for what little they had, and
as the movie showed many people went hungry. Modern Times looks toward the future, but not
with enthusiasm. Often described as a satire of the machine age, It has in fact a broader theme:
the dehumanizing effects of many aspects of modernity, including industrialization, bureaucracy,
urbanization, and law enforcement.
3) From the movie a prospect employee should not forget about the social ills and failings of
own day even if present age is seems far better than that was shown in the film. A dilbert-like
early scene shows the Tramp trying to take a break during work hours in the washroom — only
to have a big-screen image of the boss’s head suddenly appear on the washroom wall and order
him to quit stalling and get back to work. Modern audiences watching this scene may reflect
ruefully on the everyday reality of electronic surveillance in the workplace. Now, obviously
there’s nothing new about widespread poverty and want, but unemployment as we know it today
is a comparatively recent development — a byproduct of the modern workforce economy that
requires everyone to \"get a job.\"
4) The major ethical dilemma consists whether out of povertty stealing is right or wrong.
However this movie glorifies the struggle of the poor rather than vilifying them for stealing food
to survive. By glorifying the struggle the movie takes on yet another social issue: when the poor
steal to eat it is not criminal, just survival. Minor ones include
Solution
1) MODERN TIMES is a very well prepared movie that describes the miserable conditions of
humar resource during the period of industrialization era or machine age worlwide. It is a mix of
social drama and comedy. The content is presented in a satire. How did people survived the great
depression of the world is being documented here. The conditions werre miserable like acute
shortage of work, factory closings, labor strikes and political unrest etc. It is a symbolic
representation of what happens to a human being caught up in the mechanical bureaucracy of the
intellectual state.
2) Economically it could be understood that what miser situations could depress.
1. Identify five differences between DNA replication and gene transc.pdf
1. Identify five differences between DNA replication and gene transcription.
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
2. Identify four differences between DNA and RNA.
DNA
RNA
Deoxyribonucleic acid is the hereditary material in most of the organisms
Made of 2-deoxyribose sugar
Contains thymine as one of the 4 nitrogen base
It is double stranded
Ribonucleic acid transfers genetic code needed for the creation of proteins from the nucleus to
the ribosome.
Made of ribose sugar
Has Uracil as the nitrogen base instead of thymine
Single stranded
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
Solution
1. Identify five differences between DNA replication and gene transcription.
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
2. Identify four differences between DNA and RNA.
DNA
RNA
Deoxyribonucleic acid is the hereditary material in most of the organisms
Made of 2-deoxyribose sugar
Contains thymine as one of the 4 nitrogen base
It is double stranded
Ribonucleic acid transfers genetic code needed for the creation of proteins from the nucleus to
the ribosome.
Made of ribose sugar
Has Uracil as the nitrogen base instead of thymine
Single stranded
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation.
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The document describes the OSI reference model, which defines seven layers of network communication from the physical layer to the application layer. Each layer provides services to the layer above it and receives services from the layer below. The physical layer transmits raw bits of data and the application layer supports user applications. Between these layers are the data link layer, network layer, transport layer, session layer, and presentation layer, each of which performs specific functions to prepare data for transmission across a network. Protocols like TCP and IP operate at different layers to ensure reliable and ordered delivery of data packets from one device to another.
Bt0072 computer networks 1
The document provides an overview of the ISO OSI model and its 7 layers, describing the functions of each layer. It then discusses several topics related to computer networks, including the ISO/OSI model (layers and functions), ISDN (architecture and usage), LAN protocols (such as Ethernet), framing in the data link layer and its importance, and the IEEE 802.11 wireless networking standard.
Ethernet
Ethernet protocols refer to the family of local-area network (LAN) standards covered by IEEE 802.3. Ethernet networks can operate in either half-duplex or full-duplex mode and support data rates of 10 Mbps, 100 Mbps, 1000 Mbps, and 10 Gbps. The basic elements of an Ethernet system are the physical medium, medium access control rules, and Ethernet frames. Ethernet frames contain fields for source and destination addresses, length/type, data, and error checking.
Basics of OSI and TCP IP Layers
This article covers OSI and TCPIP stack and describe functions of physical layer,data link,networking layer-IP,transport-TCP,application layers.
IJSTEV2I12120
This document describes the design and implementation of an IP core for the CAN protocol. It begins with an introduction to CAN and its use in automotive and industrial applications. It then discusses the protocol layers, frame formats, arbitration, and error handling mechanisms of CAN. The document proceeds to describe the design of Verilog modules for a CAN transceiver including transmitter and receiver modules. It presents simulation waveforms showing the transmission and reception of CAN frames between two FPGA boards. It concludes that the IP core was successfully implemented on Spartan 3 and Spartan 6 FPGAs to demonstrate node-to-node communication over a CAN bus.
unit2-210710110327.pdf
The document discusses data link layer and media access control. It covers the following key points:
1. The data link layer is responsible for framing data, performing error checking and flow control between adjacent nodes. It has two sublayers - the logical link control and media access control layers.
2. The media access control layer controls how devices access and share the physical layer transmission medium. It uses protocols like CSMA/CD for Ethernet and CSMA/CA for wireless networks.
3. Framing involves adding headers and trailers to divide data into manageable units called frames. Protocols use byte-oriented or bit-oriented approaches for framing, with techniques like character stuffing to delimit frames
Computer Networks Unit 2 UNIT II DATA-LINK LAYER & MEDIA ACCESS
The document discusses data link layer framing and protocols. It describes:
1) Two main approaches to framing - byte-oriented (using sentinel characters) and bit-oriented (using bit stuffing). Protocols discussed include BISYNC, DDCMP, and HDLC.
2) Features of PPP framing including negotiated field sizes and use of LCP control messages.
3) Functions of data link layer including framing, flow control, error control, and media access control. The relationship between the logical link control and media access control sublayers is also covered.
Class_notes_InternetTechnology
A computer network connects independent computers that communicate over a shared network medium. The basic components of a network include at least two computers (servers or clients), networking interface cards, a connection medium like cables, and network operating system software. There are different types of networks including LANs, WANs, intranets, and the Internet. The OSI model defines seven layers of network functionality from the physical layer up to the application layer. TCP/IP is an open networking model used on the Internet with layers including physical, internet, and transport layers.
group11_DNAA:protocol stack and addressing
The document discusses the OSI model protocol stack and addressing. It describes the functions of each layer of the OSI model from the physical layer to the transport layer. The physical layer deals with physical transmission and encoding of data. The data link layer handles framing, addressing, error detection and flow control. The network layer is responsible for path determination and packet forwarding between hosts. The transport layer ensures reliable end-to-end delivery of data through functions like port addressing, segmentation/reassembly, connection control, flow control and error control.
Communication Performance Over A Gigabit Ethernet Network
A present computing imposes heavy demands on the optical communication network. Gigabit Ethernet technology can provide the required bandwidth to meet these demands. However, it has also involve the communication Impediment to progress from network media to TCP(Transfer control protocol) processing. In this paper, present an overview of Gigabit per second Ethernet technology and study the end-to-end Gigabit Ethernet communication bandwidth and retrieval time. Performance graphs are collected using NetPipe in this clearly show the performance characteristics of TCP/IP over Gigabit Ethernet. These indicate the impact of a number of factors such as processor speeds, network adaptors, versions of the Linux Kernel or opnet softwar and device drivers, and TCP/IP(Internet protocol) tuning on the performance of Gigabit Ethernet between two Pentium II/350 PCs. Among the important conclusions are the marked superiority of the 2.1.121 and later development kernels and 2.2.x production kernels of Linux or opnet softwar used and that the ability to increase the MTU(maximum transmission unit) Further than the Ethernet standard of 1500 could significantly enhance the throughput reachable.
01 pengenalan
Data communication involves transferring data from one device to another via a transmission medium. There are 5 basic components: a message, sender, receiver, transmission medium, and protocols. Networks allow devices to share information. Protocols establish communication rules. The OSI model provides a standardized framework for system interoperability with its 7-layer architecture separating network support and user support functions. TCP/IP is another important protocol suite used widely on the internet.
Network security on Cisco routers and switches
The following slides were a presentation that i've made as part of an exercise in my undergraduate course of Network Security. These slides present an overview on network secuirity and how we can apply it on cisco networking devices.
seven layer OSI model
The International Standards Organization (ISO) developed the Open Systems Interconnection (OSI) model. It divides network communication into seven layers. ... Layers 5-7, called the the upper layers, contain application-level data
#imannjeet #mannjeet mn
The Open Systems Interconnect (OSI) model has seven layers. this tex.pdf
The Open Systems Interconnect (OSI) model has seven layers. this text describes and explains
them, starting with the \'lowest\' within the hierarchy (the physical) and continuing to the
\'highest\' (the application). The layers area unit stacked this way:
Application
Presentation
Session
Transport
Network
Data Link
Physical
PHYSICAL LAYER
The physical layer, very cheap layer of the OSI model, worries with the transmission and
reception of the unstructured raw bit stream over a physical medium. It describes the
electrical/optical, mechanical, and useful interfaces to the physical medium, and carries the
signals for all of the upper layers. It provides:
Data encoding: modifies the easy digital signal pattern (1s and 0s) employed by the computer to
higher accommodate the characteristics of the physical medium, and to help in bit and frame
synchronization. It determines:
What signal state represents a binary one
How the receiving station is aware of once a \"bit-time\" starts
How the receiving station delimits a frame
Physical medium attachment, accommodating varied potentialities within the medium:
Will associate degree external transceiver (MAU) be accustomed connect with the medium?
How many pins do the connectors have and what\'s every pin used for?
Transmission technique: determines whether or not the encoded bits are transmitted by baseband
(digital) or broadband (analog) signal.
Physical medium transmission: transmits bits as electrical or optical signals applicable for the
physical medium, and determines:
What physical medium choices will be used
How many volts/db ought to be accustomed represent a given signal state, employing a given
physical medium
DATA LINK LAYER
The data link layer provides error-free transfer of information frames from one node to a
different over the physical layer, permitting layers on top of it to assume just about error-free
transmission over the link. To do this, the info link layer provides:
Link institution and termination: establishes and terminates the logical link between 2 nodes.
Frame traffic control: tells the transmittal node to \"back-off\" once no frame buffers area unit
obtainable.
Frame sequencing: transmits/receives frames consecutive.
Frame acknowledgment: provides/expects frame acknowledgments. Detects and recovers from
errors that occur within the physical layer by retransmitting non-acknowledged frames and
handling duplicate frame receipt.
Frame delimiting: creates and acknowledges frame boundaries.
Frame error checking: checks received frames for integrity.
Media access management: determines once the node \"has the right\" to use the physical
medium.
NETWORK LAYER
The network layer controls the operation of the subnet, deciding that physical path the info ought
to take supported network conditions, priority of service, and different factors. It provides:
Routing: routes frames among networks.
Subnet traffic control: routers (network layer intermediate systems) will instruct a causing
station.
OSI Model.It was created in 1983 by osi.
The document provides an overview of data communication standards and protocols. It discusses that standards ensure interconnectivity and interoperability between networking components. The OSI model is presented which divides communication protocols into 7 layers - physical, data link, network, transport, session, presentation and application. Key functions of each layer are defined such as framing at the data link layer, logical addressing at the network layer, and error control mechanisms at the transport layer. Common standard bodies that define communication protocols are also listed.
Ethernet and switches
This document provides information about Ethernet, switches, and their components. It discusses the Ethernet frame structure including the preamble, start of frame delimiter, destination and source addresses, length, data, and CRC fields. It also describes Ethernet cabling including twisted pair, coaxial, and fiber optic cables. The CSMA/CD protocol for Ethernet is explained. Finally, the document discusses different devices for interconnecting nodes on a network including hubs, switches, and routers as well as advantages and disadvantages of switches.
Hy3313681373
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
LAN
The document discusses different types of computer networks including LANs, MANs, and WANs. It describes CSMA/CD, the most common LAN protocol used in Ethernet networks. It also explains the functions of bridges, routers, and gateways in connecting different types of networks.
Similar to A)ANS)In this TCPIP - System Access Layer, you will find out ab.pdf (20)
Computer Networks Unit 2 UNIT II DATA-LINK LAYER & MEDIA ACCESS
Computer Networks Unit 2 UNIT II DATA-LINK LAYER & MEDIA ACCESS
Communication Performance Over A Gigabit Ethernet Network
Communication Performance Over A Gigabit Ethernet Network
The Open Systems Interconnect (OSI) model has seven layers. this tex.pdf
The Open Systems Interconnect (OSI) model has seven layers. this tex.pdf
More from aquacareser
1) MODERN TIMES is a very well prepared movie that describes the mis.pdf
1) MODERN TIMES is a very well prepared movie that describes the miserable conditions of
humar resource during the period of industrialization era or machine age worlwide. It is a mix of
social drama and comedy. The content is presented in a satire. How did people survived the great
depression of the world is being documented here. The conditions werre miserable like acute
shortage of work, factory closings, labor strikes and political unrest etc. It is a symbolic
representation of what happens to a human being caught up in the mechanical bureaucracy of the
intellectual state.
2) Economically it could be understood that what miser situations could depression bring up.
Food and jobs comes hard in hand. To which a labor is convict to do under skill jobs as well for
survival. At the time of the great depression Americans had to fight for what little they had, and
as the movie showed many people went hungry. Modern Times looks toward the future, but not
with enthusiasm. Often described as a satire of the machine age, It has in fact a broader theme:
the dehumanizing effects of many aspects of modernity, including industrialization, bureaucracy,
urbanization, and law enforcement.
3) From the movie a prospect employee should not forget about the social ills and failings of
own day even if present age is seems far better than that was shown in the film. A dilbert-like
early scene shows the Tramp trying to take a break during work hours in the washroom — only
to have a big-screen image of the boss’s head suddenly appear on the washroom wall and order
him to quit stalling and get back to work. Modern audiences watching this scene may reflect
ruefully on the everyday reality of electronic surveillance in the workplace. Now, obviously
there’s nothing new about widespread poverty and want, but unemployment as we know it today
is a comparatively recent development — a byproduct of the modern workforce economy that
requires everyone to \"get a job.\"
4) The major ethical dilemma consists whether out of povertty stealing is right or wrong.
However this movie glorifies the struggle of the poor rather than vilifying them for stealing food
to survive. By glorifying the struggle the movie takes on yet another social issue: when the poor
steal to eat it is not criminal, just survival. Minor ones include
Solution
1) MODERN TIMES is a very well prepared movie that describes the miserable conditions of
humar resource during the period of industrialization era or machine age worlwide. It is a mix of
social drama and comedy. The content is presented in a satire. How did people survived the great
depression of the world is being documented here. The conditions werre miserable like acute
shortage of work, factory closings, labor strikes and political unrest etc. It is a symbolic
representation of what happens to a human being caught up in the mechanical bureaucracy of the
intellectual state.
2) Economically it could be understood that what miser situations could depress.
1. Identify five differences between DNA replication and gene transc.pdf
1. Identify five differences between DNA replication and gene transcription.
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
2. Identify four differences between DNA and RNA.
DNA
RNA
Deoxyribonucleic acid is the hereditary material in most of the organisms
Made of 2-deoxyribose sugar
Contains thymine as one of the 4 nitrogen base
It is double stranded
Ribonucleic acid transfers genetic code needed for the creation of proteins from the nucleus to
the ribosome.
Made of ribose sugar
Has Uracil as the nitrogen base instead of thymine
Single stranded
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
Solution
1. Identify five differences between DNA replication and gene transcription.
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation
2. Identify four differences between DNA and RNA.
DNA
RNA
Deoxyribonucleic acid is the hereditary material in most of the organisms
Made of 2-deoxyribose sugar
Contains thymine as one of the 4 nitrogen base
It is double stranded
Ribonucleic acid transfers genetic code needed for the creation of proteins from the nucleus to
the ribosome.
Made of ribose sugar
Has Uracil as the nitrogen base instead of thymine
Single stranded
DNA replication
gene transcription.
occurs in preparation for cell division,
Produces two two copies of DNA, double stranded
Uses DNA as template to form DNA
Catalyzed by DNA polymerase
the end result is two daughter cells.
happens in preparation for protein translation.
Produces mRNA, single stranded
Uses template DNA as a template and forms RNA
Catalyzed by RNA polymerase
End result is mRNA which is then exported out of the nucleus for translation.
1.1Yearcash flowpresent value of cash inflow = cash flow(1+r).pdf
1.1
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5%
1
75
71.42857
2
75
68.02721
3
75
64.78782
4
1075
884.4052
value of bond
sum of present value of cash flow
1088.649
1.2
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5.2%
1
75
71.29278
2
75
67.7688
3
75
64.41901
4
1075
877.6988
value of bond
sum of present value of cash flow
1081.179
1.3
% change in bond price if YTM increases by .2%
(1081.18-1088.65)/1088.65
-0.69%
1.4
Duration is a measure of a bond\'s sensitivity to interest rate changes. The higher the bond\'s
duration, the greater its sensitivity to the change (also know as volatility) and vice versa.
1.4
Year
cash flow
Year*cash flow
present value of Year*cash inflow = cash flow/(1+r)^n r= 5%
1
75
75
71.42857
2
75
150
136.0544
3
75
225
194.3635
4
1075
4300
3537.621
total
3939.467
Macculay duration in years
total/face value of bond
3939.467/1000
3.939467
1.4
modified duration
macculay duration/(1+YTM)
3.94/1.05
3.752381
1.5
change in price if YTM increases by .2%
modified duration*change in YTM
3.75*.2%
0.75%
1.1
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5%
1
75
71.42857
2
75
68.02721
3
75
64.78782
4
1075
884.4052
value of bond
sum of present value of cash flow
1088.649
1.2
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5.2%
1
75
71.29278
2
75
67.7688
3
75
64.41901
4
1075
877.6988
value of bond
sum of present value of cash flow
1081.179
1.3
% change in bond price if YTM increases by .2%
(1081.18-1088.65)/1088.65
-0.69%
1.4
Duration is a measure of a bond\'s sensitivity to interest rate changes. The higher the bond\'s
duration, the greater its sensitivity to the change (also know as volatility) and vice versa.
1.4
Year
cash flow
Year*cash flow
present value of Year*cash inflow = cash flow/(1+r)^n r= 5%
1
75
75
71.42857
2
75
150
136.0544
3
75
225
194.3635
4
1075
4300
3537.621
total
3939.467
Macculay duration in years
total/face value of bond
3939.467/1000
3.939467
1.4
modified duration
macculay duration/(1+YTM)
3.94/1.05
3.752381
1.5
change in price if YTM increases by .2%
modified duration*change in YTM
3.75*.2%
0.75%
Solution
1.1
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5%
1
75
71.42857
2
75
68.02721
3
75
64.78782
4
1075
884.4052
value of bond
sum of present value of cash flow
1088.649
1.2
Year
cash flow
present value of cash inflow = cash flow/(1+r)^n r= 5.2%
1
75
71.29278
2
75
67.7688
3
75
64.41901
4
1075
877.6988
value of bond
sum of present value of cash flow
1081.179
1.3
% change in bond price if YTM increases by .2%
(1081.18-1088.65)/1088.65
-0.69%
1.4
Duration is a measure of a bond\'s sensitivity to interest rate changes. The higher the bond\'s
duration, the greater its sensitivity to the change (also know as volatility) and vice versa.
1.4
Year
cash flow
Year*cash flow
present value of Year*cash inflow = cash flow/(1+r)^n r= 5%
1
75
75
71.42857
2
75
150
136.0544
3
75
225
194.3635
4
1075
4300
3537.621
total
3939.467
M.
this is my code to count the frequency of words in a text file#.pdf
this is my code to count the frequency of words in a text file
#define _GNU_SOURCE
#include
#include
#include
#include
/******************************
here is the Structure for storing words
received from each thread
******************************/
struct return_vall{
char wordlist[100][100];
int count[100];
} *arr;
pthread_t *threads;
int lines;
/*****************************
here are Aggregates Frequency Sum of
different threads
*****************************/
int aggregate(char *a)
{
int sum = 0;
int i=0;
while(1)
{
if(i==lines) break;
int count = 0;
while(1)
{
if(arr[i].count[count] == -1)
{
break;
}
if(strcmp(a,arr[i].wordlist[count]) == 0)
{
sum += arr[i].count[count];
arr[i].count[count] = 0;
}
count++;
}
i++;
}
return sum;
}
/**************************
Function thta are executed by each
thread on seperate line.
**************************/
void *word_count(void* num)
{
int *ln = num;
unsigned int line_number = *ln;
line_number++;
//printf(\"Thread %d\ \",line_number);
char cmd_p1[9] = \"sed -n \'\\0\";
char cmd_p2[2];
sprintf(cmd_p2,\"%d\",line_number);
char cmd_p3[14] = \"p\' \'file.txt\'\\0\";
char command[100];
command[0] = \'\\0\';
strcat(command,cmd_p1);
strcat(command,cmd_p2);
strcat(command,cmd_p3);
//usleep(line_number);
char cmd[100] = \" | tr [:space:] \'\\\ \' | grep -v \'^\\\\s*$\' | sort | uniq -c | sort\\0\";
strcat(command,cmd);
//printf(\"%s\ \",command);
//fflush(stdout);
FILE *in;
in= popen(command, \"r\");
rewind(in);
char buff[50];
int counter = 0;
while(fgets(buff,sizeof(buff),in))
{
char c=\' \';
int i = 0;
int cnt = atoi(buff);
arr[line_number-1].count[counter] = cnt;
while(c!=\'\\0\')
{
c=buff[i];
buff[i]=buff[i+6];
i++;
}
int cnnt = 0;
while(c!=\' \')
{
c = buff[cnnt];
cnnt++;
}
i=0;
while(c!=\'\\0\')
{
c=buff[i];
buff[i]=buff[i+cnnt];
i++;
}
sprintf(arr[line_number-1].wordlist[counter],\"%s\",buff);
//printf(\"%d %s\",arr[line_number-1].count[counter],arr[line_number-
1].wordlist[counter]);
counter++;
}
arr[line_number-1].count[counter] = -1;
fclose(in);
return NULL;
}
int main(void)
{
FILE *fp;
fp = fopen(\"file.txt\",\"r\");
char a[200];
lines = 0;
void *status = NULL;
while(fgets(a,sizeof(a),fp) !=NULL)
{
lines++;
}
fclose(fp);
arr = (struct return_vall*) calloc(lines, sizeof(struct return_vall) * lines);
threads = malloc(sizeof(pthread_t)*lines);
int i;
for(i=0;i= 0)
{
if(arr[i].count[ctr] > 0)
{
strcpy(final[final_ctr],arr[i].wordlist[ctr]);
final_cnt[final_ctr] = arr[i].count[ctr];
arr[i].count[ctr] = 0;
int sum = aggregate(arr[i].wordlist[ctr]);
final_cnt[final_ctr] += sum;
printf(\"%d %s\",final_cnt[final_ctr],final[final_ctr]);
}
ctr++; final_ctr++;
}
i++;
if(i==lines)
{
break;
}
}
free(arr);
return 0;
}
Solution
this is my code to count the frequency of words in a text file
#define _GNU_SOURCE
#include
#include
#include
#include
/******************************
here is the Structure for storing words
received from each thread
******************************/
struct return_vall{
char wordlist[100][100];
.
The ice allows the refluxed materials to crystall.pdf
The use of ice in refluxing materials allows them to crystallize and form solid crystals and products. Additionally, the ice facilitates purification by washing away contaminants when it melts. In summary, ice promotes crystallization and purification during refluxing.
1. b2. c (bed bug)3. d (caterpillars)4. c (lyme disease)5. e.pdf
1. b
2. c (bed bug)
3. d (caterpillars)
4. c (lyme disease)
5. e (chagas disease)
6. a (hives)
7. e (short lived)
8. d (plants)
9. a (1892)
10. e (parvoviridae)
11. mosquito
12. a (flies)
13. c (lyme disease)
14.
15. --- holometabolous is the type of metamorphosis in beetles
16. oligocene
17. e (6 or more)
18. e
Solution
1. b
2. c (bed bug)
3. d (caterpillars)
4. c (lyme disease)
5. e (chagas disease)
6. a (hives)
7. e (short lived)
8. d (plants)
9. a (1892)
10. e (parvoviridae)
11. mosquito
12. a (flies)
13. c (lyme disease)
14.
15. --- holometabolous is the type of metamorphosis in beetles
16. oligocene
17. e (6 or more)
18. e.
#In this project you will write a program play TicTacToe #using tw.pdf
#In this project you will write a program play TicTacToe
#using two players (labels 0,1) or one play (label 0) playing with the machine (label 1).
#The TicTacToe board has 9 integers board = [1,2,3,4,5,6,7,8,9]. The following
# are the modules for the program
#
#def reset() resets the board to the original values
# board = [1,2,3,4,5,6,7,8,9]
#
#def printBoard() print the current state of the board using the format
#
#The current TicTacToe Board
# | 1 | 2 | 3 |
# | 4 | 5 | 6 |
# | 7 | O | 9 |
#
#The current TicTacToe Board
# | X | 2 | 3 |
# | 4 | 5 | 6 |
# | 7 | O | 9 |
#Note from the above that player 0 and 1 have played numbers 8 and 1
#respectively and the board display O for player 0 and X from player 1
#
#def changeBoard(num1, player) using the chosen box number to change
#the value of the box to 0 or -1 depending on whether the player is 0 or 1,
#respectively.
#
#def play(player) prints the player number (0 or 1) and prompts the player
# to enter a box value that have not changed to \'O\' or \'X\'
#
#def checkRows(value) checks to see which of the rows of the board
# has the same value and returns True, otherwise, returns False
#
#def checkCols(value) checks to see which of the cols of the board
# has the same value and returns True, otherwise, returns False
#
#def checkDiagonal(value) checks to see which of the diagonals of the board
# has the same value and returns True, otherwise, returns False
#
#def win(player) checks if a player wins the game, returns True of the player wins
# and False otherwise
#
#def machinePlay(player) plays the role of the player using random number.
# this function generates numbers in the interval [1,9] and uses the first
# generated random number that has not been used to play the game. The
#
#def ticTacToe(numPlayers) accepts the number of players and simulates the
#ticTapToe, asking players to enter unused box numbers.
#
#def main() is the driver module that accepts the number of players from the user
# and calls the ticTacToe module
#Assignment: Complete the follwoing modules:
#checkCols
#checkRows
#checkDiagonal
#win
#Sample of the output is
#
#Project
#This game can be played by one or two players
#Enter the number of players, 1/2 for one/two players: 1
#
#The current TicTapToe Board
#| 1 | 2 | 3 |
#| 4 | 5 | 6 |
#| 7 | 8 | 9 |
#Player 0 Enter a box value: 9
#
#The current TicTapToe Board
#| 1 | 2 | 3 |
#| 4 | 5 | 6 |
#| 7 | 8 | O |
#Player 1 ***Computer*** playing
#The current TicTapToe Board
#| 1 | 2 | 3 |
#| 4 | 5 | 6 |
#| 7 | X | O |
#Player 0 Enter a box value: 1
#
#The current TicTapToe Board
#| O | 2 | 3 |
#| 4 | 5 | 6 |
#| 7 | X | O |
#Player 1 ***Computer*** playing
#
#The current TicTapToe Board
#| O | X | 3 |
#| 4 | 5 | 6 |
#| 7 | X | O |
#Player 0 Enter a box value: 5
#
#The current TicTapToe Board
#| O | X | 3 |
#| 4 | O | 6 |
#| 7 | X | O |
#Player 0 Wins
#Do you want to quit?
#Begin Program
#import random number generator
#from random library
#from random import randint, seed
#Global va.
Web sever environmentA Web server is a program that uses HTTP (Hy.pdf
Web sever environment:
A Web server is a program that uses HTTP (Hypertext Transfer Protocol) to serve the files that
form Web pages to users, in response to their requests, which are forwarded by their computers\'
HTTP clients. Dedicated computers and appliances may be referred to as Web servers as
well.The process is an example of the client/server model. All computers that host Web sites
must have Web server programs. Leading Web servers include Apache (the most widely-
installed Web server), Microsoft\'s Internet Information Server (IIS) and nginx
(pronouncedengine X) from NGNIX. Other Web servers include Novell\'s NetWare server,
Google Web Server (GWS) and IBM\'s family of Domino servers. Web servers often come as
part of a larger package of Internet- and intranet-related programs for serving email,
downloading requests for File Transfer Protocol (FTP) files, and building and publishing Web
pages. Considerations in choosing a Web server include how well it works with the operating
system and other servers, its ability to handle server-side programming, security characteristics,
and the particular publishing, search engine and site building tools that come with it.
Advantages of using a web server within your development environment:
Problems posed by web server environment and methods to solve:
Various high-profile hacking attacks have proven that web security remains the most critical
issue to any business that conducts its operations online. Web servers are one of the most
targeted public faces of an organization, because of the sensitive data they usually host. Securing
a web server is as important as securing the website or web application itself and the network
around it. If you have a secure web application and an insecure web server, or vice versa, it still
puts your business at a huge risk. Your company’s security is as strong as its weakest point.
Although securing a web server can be a daunting operation and requires specialist expertise, it is
not an impossible task. Long hours of research and an overdose of coffee and take away food,
can save you from long nights at the office, headaches and data breaches in the future. Irrelevant
of what web server software and operating system you are running, an out of the box
configuration is usually insecure. Therefore one must take some necessary steps in order to
increase web server security. Below is a list of tasks one should follow when securing a web
server.
1. Remove Unnecessary Services
Default operating system installations and configurations, are not secure. In a typical default
installation, many network services which won’t be used in a web server configuration are
installed, such as remote registry services, print server service, RAS etc. The more services
running on an operating system, the more ports will be left open, thus leaving more open doors
for malicious users to abuse. Switch off all unnecessary services and disable them, so next time
the server is rebooted, they .
We ca use HashSet data structure to remove duplicats from an array i.pdf
We ca use HashSet data structure to remove duplicats from an array in O(n) time.
HashSet does not allow duplicate elements. So add all elements from an array to HashSet. While
adding first check whether current element is already in Set or not. If it is already there then
remove from an array.
PSUDO CODE:
void removeDuplicateFromArray(int []array, int size):
1. create a HashSet: HashSet set = new HashSet();
2. Itereate give array and add element in Set one by one:
int k = 0;
for i=0 to size-1:
if(!set.contains(array[i]) // if current element is not in Set, then add it in set and include in array
also
array[k++] = array[i];
set.add(array[i])
Runnning TIme: O(n)
Solution
We ca use HashSet data structure to remove duplicats from an array in O(n) time.
HashSet does not allow duplicate elements. So add all elements from an array to HashSet. While
adding first check whether current element is already in Set or not. If it is already there then
remove from an array.
PSUDO CODE:
void removeDuplicateFromArray(int []array, int size):
1. create a HashSet: HashSet set = new HashSet();
2. Itereate give array and add element in Set one by one:
int k = 0;
for i=0 to size-1:
if(!set.contains(array[i]) // if current element is not in Set, then add it in set and include in array
also
array[k++] = array[i];
set.add(array[i])
Runnning TIme: O(n).
this eample is of t-test for comparing two meanshere mean1 = m.pdf
this eample is of t-test for comparing two means
here mean1 = mean of FIFO and mean 2 : Mean of LIFO
so here we use student t-test for comparision of 2 means to evaluate both methods in this
procedure
ans: Student t-test for comparision of means
Solution
this eample is of t-test for comparing two means
here mean1 = mean of FIFO and mean 2 : Mean of LIFO
so here we use student t-test for comparision of 2 means to evaluate both methods in this
procedure
ans: Student t-test for comparision of means.
The middle ear bones in mammals are derived from bones in the dentar.pdf
The middle ear bones in mammals are derived from bones in the dentary bone (mandible) of
Therapsids. In the Therapsid dentary, there were three bones used in the jaw hinge: the angular,
articular and quadrate. The tympanic, malleus, and incus are homologous to the angular,
articular, and quadrate
Tympanic = Angular
Malleus = Articular
Incus = Quadrate
In early Therapsids, the quadrate, angular and articular were directly connected to the dentary
bone in the jaw hinge. These bones were essential for jaw movement. These bones were also
utilized for crude hearing capabilities. The next stage of evolution came with the separation of
these bones and the dentary. After the bones separated from the jaw, they formed the postdentary
rod. It is believed that these the mammalian middle ear bones evolved at least twice. It is
believed that monotreme and therian ancestors evolved very similar middle ear bones, but in two
separate paths. In monotreme ancestors, there is a mandibular trough, that is believed to have
accommodated the postdentary rod. This rod is believed to have been connected to the trough by
ligaments. This rod was used for hearing and the quadrate, angular, and articular were no longer
needed in the jaw hinge. In therians, the mandibular trough no longer held the quadrate, angular,
and articular. These bones were held to the jaw by ossified Meckel’s cartilage. This bridge of
cartilage and bone extended away from the dentary and approached the area that would make up
the modern ear cavity.
The evolution of the mammalian middle ear and jaw joint were pivotal steps in the evolution of
mammals. It is also a great example of how classical comparative anatomy, paleontology and
developmental biology have come together to piece together how this remarkable transformation
of jaw joint to ear ossicles was able to come about. The homologies of the malleus, incus and
stapes to the articular, quadrate and columella, and tympanic ring and gonial to the angular and
prearticular suggested by comparative anatomy 175 years ago have been recently confirmed by
molecular and developmental biology. The recent discovery of new mammali form fossils has
allowed careful documentation of the shift from primary to secondary jaw articulation, creating
an opportunity to follow the transformation of the post-dentary skeletal elements. This fossil data
has been complemented by the study of marsupial development, providing insight into the
changing role of the malleus and incus, and the relationship of the primary and secondary jaw
joints. We now have a number of unanswered questions. What are the signalling molecules
involved in the interactions between the condylar process and the glenoid fossa that create the
novel mammalian jaw joint? What are the mechanisms that lead to transformation of Meckel’s
cartilage into a ligament allowing isolation of the ear from the jaw? What controls the
distribution of secondary cartilages? What controls the timing of differentiation an.
There is an old saying “Do not put all eggs in one basket”WhyBe.pdf
There is an old saying “Do not put all eggs in one basket”
Why?
Because risk is high.By keeping eggs in different baskets, we reduce risk
We try to do same thing through diversification.
By investing our capital in different assets , we try to reduce risk.
Diversified folios reduce the risk and also the ratio of Risk to reward.
If w1, w2 , w3 …wn are weight in the portfolio for assets 1, 2,3 ….n
Then,w1+w2+w3+……………………+wn=1
R1, R2,R3,…….Rn are the return of the assets 1, 2 , 3 ….n
S1, S2, S3……Sn are the standard deviation of the assets 1, 2, 3 …n
Portfolio Return=w1R1+w2R2+w3R3+…….+wnRn
Portfolio
Variance=(w1^2)*(S1^2)+(w2^2)(S2^2)+………….(wn^2)*(Sn^2)+2w1w2*Cov(1,2)+2w1w3*
Cov(1,3)+………+w(n-1)wn*Cov(n,(n-1)
Cov(1,2)=Covariance of returns of asset1 and asset2
Portfolio Standard Deviation =Square root of Portfolio variance
Risk of a stock is measured by standard deviation.
Hence reduction of standard deviation through diversification means reduction of risk.
We can take a simple example of two assets 1 and 2
Return of asset1=R1=15%
Return of asset2=R2=12%
Standard deviation of asset 1=S1=10%
Standard deviation of asset 2=S2=8%
Correlation of asset 1 and 2=Corr(1,2)=0.1
Covariance(1,2)=Corr(1,2)*S1*S2=0.1*10*8=8
Assume for simplicity, equal amount is invested in asset 1 and asset 2
Hence, w1=w2=0.5
Portfolio Return;
0.5*15+0.5*12=13.5%
Portfolio Variance=(0.5^2)*(10^2)+(0.5^2)*(8^2)+2*0.5*0.5*8=45
Portfolio Standard Deviation=Square root of Variance=(45^0.5)= 6.708204
We can see, the risk of portfolio as measured by Standard Deviation has reduced significantly to
6,7 whereas the assets in the portfolio had standard deviation of 10 and 8
Risk / Return ratio of the portfolio=6.7/13.5=0.496
Risk/Return ratio of asset1=10/15= 0.666667
Risk/Return ratio of asset2=8/12= 0.666667
Risk return ratio of the portfolio is lower
WHY INVEST IN DIFFERENT INDUSTRIES TO DIVERSIFY?
Return of same types of assets are highly correlated. Suppose, if you invest in 10 different
Technology Companies, you may not be able to reduce risk, because all the companies will have
similar return and highly correlated.
We have seen in the equation of Portfolio Variance, one factor=2 w1*w2*Cov(1,2)
If there is high correlation between return of asset1 and 2, the Covariance(1,2) will be high .
Hence this factor 2w1w2Cov(1,2) will be high. As a result portfolio standard deviation will be
high and diversification will not serve any purpose.
Hence, in order to get benefit of diversification, we need to invest in different type of industries
so that the correlation between different assets are low. Consequently, the portfolio risk
(measured through standard deviation) is low.
Solution
There is an old saying “Do not put all eggs in one basket”
Why?
Because risk is high.By keeping eggs in different baskets, we reduce risk
We try to do same thing through diversification.
By investing our capital in different assets , we try to reduce risk.
Diversified folios reduce the risk and also the rati.
The ER Model is focussed to be a description of real-world entities..pdf
The ER Model is focussed to be a description of real-world entities. Although its
development/construction is done in such a way as to allow fair and easy translation to the
relational schema model, this is not fully trivial process. The ER diagram represents the
conceptual level of database design while the relational schema represents the logical level for
the database design. Following simple rules are followed:
ADDRESS( cityAddress, city, state ) candidate key:cityAddress, city , state
PERSON( pid,name ) candidate key: pid
OBSERVATION (oid, date, temperature, humidity, precip. ,city), candidate key: oid foreign key:
city
OBSERVER ( pid ), candidate key: pid
METEREOLOGIST( pid ), candidate key: pid
CONSUMER( pid ), candidate key: pid
WARNINGS( wwid,description,date,city) candidate key: wwid
FORECAST( fid,city,date,low,high) candidate key: fid
WEATHERPROGRAM( wid,name ) candidatekey; wid
LIVESAT(city, streerAddress, state,pid)
RECORDS(oid,pid,method)
ISSUES(wwid.pid)
PRESENTS(fid,pid)
VIEWS(pid,fid)
MAKES(wid,fid,oid)
15 tables will be created in all along with relationship tables
and only 9 tables if relationships are shown as foreign keys
Solution
The ER Model is focussed to be a description of real-world entities. Although its
development/construction is done in such a way as to allow fair and easy translation to the
relational schema model, this is not fully trivial process. The ER diagram represents the
conceptual level of database design while the relational schema represents the logical level for
the database design. Following simple rules are followed:
ADDRESS( cityAddress, city, state ) candidate key:cityAddress, city , state
PERSON( pid,name ) candidate key: pid
OBSERVATION (oid, date, temperature, humidity, precip. ,city), candidate key: oid foreign key:
city
OBSERVER ( pid ), candidate key: pid
METEREOLOGIST( pid ), candidate key: pid
CONSUMER( pid ), candidate key: pid
WARNINGS( wwid,description,date,city) candidate key: wwid
FORECAST( fid,city,date,low,high) candidate key: fid
WEATHERPROGRAM( wid,name ) candidatekey; wid
LIVESAT(city, streerAddress, state,pid)
RECORDS(oid,pid,method)
ISSUES(wwid.pid)
PRESENTS(fid,pid)
VIEWS(pid,fid)
MAKES(wid,fid,oid)
15 tables will be created in all along with relationship tables
and only 9 tables if relationships are shown as foreign keys.
Please find the answers belowAnswer 16 Option A (IEP). (IEP or i.pdf
Please find the answers below:
Answer 16: Option A (IEP). (IEP or individual educational plan is an official document which
carries the information depicting the personal/specific educatinal goals of children with special
needs. It is not only a document, but refers to a protocol/programme which clearly demarcates
the specific needs of a student. It has some features such as specilization, personalized, validity,
usability as a shared document, information about requirement of a specific teacher/mentor or
subject expert etc.)
Answer 17: The statement is true. Technically, based upon the physical, physiological and
psychological development of children, the age group of 6-11 has been globally accepted as the
time of adolescence for growing children. This age group is associated with discrete phsycial
growth (puberty), psycholgoical growth (feelings, emotions etc) and physiological growth
(activation of reproductive organs).
Solution
Please find the answers below:
Answer 16: Option A (IEP). (IEP or individual educational plan is an official document which
carries the information depicting the personal/specific educatinal goals of children with special
needs. It is not only a document, but refers to a protocol/programme which clearly demarcates
the specific needs of a student. It has some features such as specilization, personalized, validity,
usability as a shared document, information about requirement of a specific teacher/mentor or
subject expert etc.)
Answer 17: The statement is true. Technically, based upon the physical, physiological and
psychological development of children, the age group of 6-11 has been globally accepted as the
time of adolescence for growing children. This age group is associated with discrete phsycial
growth (puberty), psycholgoical growth (feelings, emotions etc) and physiological growth
(activation of reproductive organs)..
Question 1 answer is A Global trade allows wealthy countries to use .pdf
Question 1 answer is A Global trade allows wealthy countries to use their resources - whether
labor, technology or capital - more efficiently. Because countries are endowed with different
assets and natural resources (land, labor, capital and technology), some countries may produce
the same good more efficiently and therefore sell it more cheaply than other countries. If a
country cannot efficiently produce an item, it can obtain the item by trading with another country
that can. This is known as specialization in international trade.
Question 2 answer is C All options are correct
Question 3 answer is D Revenue tariffs are levied to raise money.
Question 4 answer is D.(cannot promote third world development, unless governments offer
some incentive for importing from third world economies).
Question 5 answer is A
Question 6 answer is C
Solution
Question 1 answer is A Global trade allows wealthy countries to use their resources - whether
labor, technology or capital - more efficiently. Because countries are endowed with different
assets and natural resources (land, labor, capital and technology), some countries may produce
the same good more efficiently and therefore sell it more cheaply than other countries. If a
country cannot efficiently produce an item, it can obtain the item by trading with another country
that can. This is known as specialization in international trade.
Question 2 answer is C All options are correct
Question 3 answer is D Revenue tariffs are levied to raise money.
Question 4 answer is D.(cannot promote third world development, unless governments offer
some incentive for importing from third world economies).
Question 5 answer is A
Question 6 answer is C.
Precipitation hardening, or age hardening, provides one of the most .pdf
Precipitation hardening, or age hardening, provides one of the most widely used mechanisms for
the strengthening of metal alloys. The fundamental understanding and basis for this technique
was established in early work at the U. S. Bureau of Standards on Duralumin.
The importance of theoretical suggestion for the development of new alloys is clear from the
historical record. At the end of the 19th century, cast iron was the only important commercial
alloy not already known to western technology at the time of the Romans. When age hardening
of aluminum was discovered accidentally by Wilm, during the years 1903 -1911, it quickly
became an important commercial alloy under the trade name Duralumin.
The strength and hardness of some metal alloys may be enhanced by the formation of extremely
small uniformly dispersed second-phase particles within the original phase matrix in a process
known as precipitation or age hardening. The precipitate particles act as obstacles to dislocation
movement and thereby strengthen the heat-treated alloys. Many aluminum based alloys, copper-
tin, certain steels, nickel based super-alloys and titanium alloys can be strengthened by age
hardening processes.
In order for an alloy system to be able to be precipitation-strengthened, there must be a terminal
solid solution that has a decreasing solid solubility as the temperature decreases. The Al-Cu
(Duralumin is an aluminum alloy of 2XXX group) phase diagram shown in Figure 1 shows this
type of decrease along the solvus between the and + regions. Consider a 96wt%Al – 4wt%Cu
alloy which is chosen since there is a large degrease in the solid solubility of solid solution in
decreasing the temperature from 550°C to 75°C.
Solution
Precipitation hardening, or age hardening, provides one of the most widely used mechanisms for
the strengthening of metal alloys. The fundamental understanding and basis for this technique
was established in early work at the U. S. Bureau of Standards on Duralumin.
The importance of theoretical suggestion for the development of new alloys is clear from the
historical record. At the end of the 19th century, cast iron was the only important commercial
alloy not already known to western technology at the time of the Romans. When age hardening
of aluminum was discovered accidentally by Wilm, during the years 1903 -1911, it quickly
became an important commercial alloy under the trade name Duralumin.
The strength and hardness of some metal alloys may be enhanced by the formation of extremely
small uniformly dispersed second-phase particles within the original phase matrix in a process
known as precipitation or age hardening. The precipitate particles act as obstacles to dislocation
movement and thereby strengthen the heat-treated alloys. Many aluminum based alloys, copper-
tin, certain steels, nickel based super-alloys and titanium alloys can be strengthened by age
hardening processes.
In order for an alloy system to be able to be precipitation-strengthene.
Protists are beneficial to the ecosystem in generating oxygen as the.pdf
Protists are beneficial to the ecosystem in generating oxygen as they are photosynthetic & single
celled in aquatic system result in higher dissolved oxygen finally other trophic levels are in
equilibrium
Some protists are natural scavangers & profoundly promote \"decomposition of natural organic
matter & dead bodies\" therefore nitrogen balance in the ecosystem
Some protist are harmful to the ecosystem and they cause disease to various animal and humans
result in ecological imbalance in trophic levels of food web
Economic importance of protists:
Bio-medical importance of protists:
Ecological importance of protists:
Ques-4:
Green algae: These are the algae, which were originated predominantly from the endosymbiotic
cyanobacteria, and these algae possess both plastids and chloroplasts for photosynthesis to
perform their nutrients synthesis.
Volvox is multicellular green algae and possesses cell differentiation as an evolutionary
reproductive adaptation. The cells are associated with flagella outside for motility and vacuoles
& chloroplasts inside. They mediate cell –to- cell communication through sensory perception
obtained from “eyespot” finally neighboring cells join through “cytoplasmic strands” that
promote cell –to-cell communication. Recent research has illustrated that cellular adhesion
molecules (Algal-CAMs) are found in multicellular Volvox. However, the bulk transport has not
observed in the Volvox, a primitive feature still yet to develop in them.
Brown algae are the algae, which possess secondary chloroplasts as their functional units to
perform their photosynthesis and these algae are commonly originated from the endosymbiotic
red algae. Examples are diatoms. Phylogenetic relationship with land plants:
Red algae do not possess property of photosynthesis & as they do not contain green pigments
Ques-3:
Outer coverings:
Sphingolipids
Pellicle
Phospholipids & glycolipids
Solution
Protists are beneficial to the ecosystem in generating oxygen as they are photosynthetic & single
celled in aquatic system result in higher dissolved oxygen finally other trophic levels are in
equilibrium
Some protists are natural scavangers & profoundly promote \"decomposition of natural organic
matter & dead bodies\" therefore nitrogen balance in the ecosystem
Some protist are harmful to the ecosystem and they cause disease to various animal and humans
result in ecological imbalance in trophic levels of food web
Economic importance of protists:
Bio-medical importance of protists:
Ecological importance of protists:
Ques-4:
Green algae: These are the algae, which were originated predominantly from the endosymbiotic
cyanobacteria, and these algae possess both plastids and chloroplasts for photosynthesis to
perform their nutrients synthesis.
Volvox is multicellular green algae and possesses cell differentiation as an evolutionary
reproductive adaptation. The cells are associated with flagella outside for motility and vacuoles
& chloroplasts inside. They mediate.
Now a normal O2 molecule has 12 electrons in the valence shell so, O.pdf
Now a normal O2 molecule has 12 electrons in the valence shell so, O2+ has 11 electrons in its
valence shell. The first two go in the s2s and the next two go in the s*2s. Now two go in the s2p.
Now thats 6 of the electrons. 4 electrons go in the p2p level and the remaining one goes in the
p*2p level. Now count that up and the bond order is 1/2 the number of bonding electrons minus
antibonding electrons:
Order = 1/2 (8 - 3) = 5/2
Solution
Now a normal O2 molecule has 12 electrons in the valence shell so, O2+ has 11 electrons in its
valence shell. The first two go in the s2s and the next two go in the s*2s. Now two go in the s2p.
Now thats 6 of the electrons. 4 electrons go in the p2p level and the remaining one goes in the
p*2p level. Now count that up and the bond order is 1/2 the number of bonding electrons minus
antibonding electrons:
Order = 1/2 (8 - 3) = 5/2.
P1.javaimport java.util.Scanner;keyboard inputting package pub.pdf
P1.java
import java.util.Scanner;//keyboard inputting package
public class P1 {//main class
public static void main(String[] args) {//main method
Scanner input = new Scanner (System.in);
//User will input values
System.out.print(\"Enter your weght in pounds:\");
int weight = input.nextInt();//keyboard inputting
//User will input values
System.out.print(\"Enter your feet and inches:\");
int feet = input.nextInt();//keyboard inputting
int inches=input.nextInt();
int totalheightininches=0;
totalheightininches=(feet*12)+inches;//converting feet and inches into total inches
float bmi;
float constant=703f;
bmi = (float) (weight /Math.pow(totalheightininches,2))*constant;//bmi calculation
//Print out results on display
System.out.println(\"BMI is\" + bmi);
if(bmi <18.5)
System.out.println(\"Underweight\");
else if (bmi <25)
System.out.println(\"Normal\");
else if (bmi < 30)
System.out.println(\"Overweight\");
else
System.out.println(\"Obese\");
}
}
output
Enter your weght in pounds:150
Enter your feet and inches:5 5
BMI is24.95858
Normal
Solution
P1.java
import java.util.Scanner;//keyboard inputting package
public class P1 {//main class
public static void main(String[] args) {//main method
Scanner input = new Scanner (System.in);
//User will input values
System.out.print(\"Enter your weght in pounds:\");
int weight = input.nextInt();//keyboard inputting
//User will input values
System.out.print(\"Enter your feet and inches:\");
int feet = input.nextInt();//keyboard inputting
int inches=input.nextInt();
int totalheightininches=0;
totalheightininches=(feet*12)+inches;//converting feet and inches into total inches
float bmi;
float constant=703f;
bmi = (float) (weight /Math.pow(totalheightininches,2))*constant;//bmi calculation
//Print out results on display
System.out.println(\"BMI is\" + bmi);
if(bmi <18.5)
System.out.println(\"Underweight\");
else if (bmi <25)
System.out.println(\"Normal\");
else if (bmi < 30)
System.out.println(\"Overweight\");
else
System.out.println(\"Obese\");
}
}
output
Enter your weght in pounds:150
Enter your feet and inches:5 5
BMI is24.95858
Normal.
operating system linux,ubuntu,Mac#include iostream #include .pdf
//operating system linux,ubuntu,Mac
#include
#include
#include
#include // for Time
using namespace std;
struct Node {
int number;
struct Node* nextNode;
};
//append Method Implementation
void append(struct Node** head, int num)
{
if (*head == NULL) { // checking if first node is NULL or not
(*head) = (struct Node*)malloc(sizeof(struct Node));
(*head)->number = num;
(*head)->nextNode = NULL;
}
else {
struct Node* temp = *head;
while (temp->nextNode != NULL) {
temp = temp->nextNode;
}
struct Node* newNode = (struct Node*)malloc(sizeof(struct Node)); //dynamically
allocation of memory
newNode->number = num;
newNode->nextNode = NULL;
temp->nextNode = newNode;
}
}
/* Getting Node with value from List*/
Node* search(struct Node** head, int value)
{
clock_t begin = clock();
std::cout<number == value) {
clock_t end = clock();
std::cout<nextNode;
}
return NULL;
}
/*Display List Method Implementation*/
void printList(struct Node* head)
{
while (head != NULL) {
std::cout << head->number << \" \";
head = head->nextNode;
}
std::cout << endl;
}
int main(int argc, char *argv[])
{
struct Node* head = NULL,*temp;
srand(time(0));
if ( argc != 3 ) // argc should be 2 for correct execution
// We print error message
std::cout<<\"Please Enter 3 argument\"<
Solution
//operating system linux,ubuntu,Mac
#include
#include
#include
#include // for Time
using namespace std;
struct Node {
int number;
struct Node* nextNode;
};
//append Method Implementation
void append(struct Node** head, int num)
{
if (*head == NULL) { // checking if first node is NULL or not
(*head) = (struct Node*)malloc(sizeof(struct Node));
(*head)->number = num;
(*head)->nextNode = NULL;
}
else {
struct Node* temp = *head;
while (temp->nextNode != NULL) {
temp = temp->nextNode;
}
struct Node* newNode = (struct Node*)malloc(sizeof(struct Node)); //dynamically
allocation of memory
newNode->number = num;
newNode->nextNode = NULL;
temp->nextNode = newNode;
}
}
/* Getting Node with value from List*/
Node* search(struct Node** head, int value)
{
clock_t begin = clock();
std::cout<number == value) {
clock_t end = clock();
std::cout<nextNode;
}
return NULL;
}
/*Display List Method Implementation*/
void printList(struct Node* head)
{
while (head != NULL) {
std::cout << head->number << \" \";
head = head->nextNode;
}
std::cout << endl;
}
int main(int argc, char *argv[])
{
struct Node* head = NULL,*temp;
srand(time(0));
if ( argc != 3 ) // argc should be 2 for correct execution
// We print error message
std::cout<<\"Please Enter 3 argument\"<.
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