This document contains questions about various topics related to mobile computing and wireless networks. It begins by defining key terms like SAMA, CDMA, CSMA and others. It then lists big questions about topics like cellular systems, MAC protocols, GSM architecture, and mobility management in wireless networks. Subsequent sections provide two-mark questions about WLAN, Bluetooth, Mobile IP, TCP for wireless networks, and pervasive computing topics. The final part lists big questions about pervasive applications, hardware, operating systems, security and access in pervasive environments.
Communication Networks: The Complete GuideDaisyWatson5
A computer network consists of nodes and communication links which implement its protocols. It interconnects a set of hosts which conform to the network protocols.
A network may be classified as a LAN, MAN, or WAN, depending on its geographic spread, and as private or public, depending on its access restrictions. It may employ a point-to-point or a broadcast communication
www.ThesisScientist.com Chapter 1: Introduction 15
model. A point-to-point model may be based on circuit switching or packet
switching.
The OSI model proposes a seven-layer architecture for networks. Each layer is characterized by a set of protocols. The network nodes implement only the bottom three layers, while the hosts implement all the layers.
The physical layer controls the transmission of raw data bits over communication lines. The data link layer facilitates the reliable transfer of data over communication channels. The network layer controls the end-to-end routing of data across the network. The transport layer manages the efficient and cost-effective transportation of data across the network. The session layer manages the negotiation of the establishment and termination of connections (sessions). The presentation layer provides a mutually-agreeable binary representation of application data (syntax). The application layer provides a mutually-agreeable meaning of application data (semantics).
A service primitive is an abstract representation of the interaction between a service provider and a service user, and may be of one of four types: request, indication, response, and confirmation.
A sequence diagram defines a service protocol by specifying the permissible sequence of service primitives that may be exchanged between service users and service providers.
A state transition diagram describes the various execution states a station can assume and how service primitives cause it to transit from one state to another.
Communication standards are essential in order to achieve interoperability between different equipment and networks.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Communication Networks: The Complete GuideDaisyWatson5
A computer network consists of nodes and communication links which implement its protocols. It interconnects a set of hosts which conform to the network protocols.
A network may be classified as a LAN, MAN, or WAN, depending on its geographic spread, and as private or public, depending on its access restrictions. It may employ a point-to-point or a broadcast communication
www.ThesisScientist.com Chapter 1: Introduction 15
model. A point-to-point model may be based on circuit switching or packet
switching.
The OSI model proposes a seven-layer architecture for networks. Each layer is characterized by a set of protocols. The network nodes implement only the bottom three layers, while the hosts implement all the layers.
The physical layer controls the transmission of raw data bits over communication lines. The data link layer facilitates the reliable transfer of data over communication channels. The network layer controls the end-to-end routing of data across the network. The transport layer manages the efficient and cost-effective transportation of data across the network. The session layer manages the negotiation of the establishment and termination of connections (sessions). The presentation layer provides a mutually-agreeable binary representation of application data (syntax). The application layer provides a mutually-agreeable meaning of application data (semantics).
A service primitive is an abstract representation of the interaction between a service provider and a service user, and may be of one of four types: request, indication, response, and confirmation.
A sequence diagram defines a service protocol by specifying the permissible sequence of service primitives that may be exchanged between service users and service providers.
A state transition diagram describes the various execution states a station can assume and how service primitives cause it to transit from one state to another.
Communication standards are essential in order to achieve interoperability between different equipment and networks.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptx
Qb
1. 1. Define SAMA.
2. Define CDMA.
3..What are the several versions in CSMA?
4.What is meant by non-persistent CSMA?
5.What is meant by p-persistent CSMA?
6. What is SDMA?
7. What is FDD?
8. What are the 2 sub layers in DLC?
9) What is EY-NMPA?
10) What do you mean by Polling?
11) What are the four types of handover available in GSM?
12) What is TETRA?
13) what are the categories of Mobile services?
14) What are the services provided by supplementary services?
15) What are types of Handover?
BIG QUESTIONS IN UNIT-1
1) Discuss the advantage and disadvantage of cellular system with small cells
2) Explain FDMA in detail.
3) Discuss SDMA in detail.
4) Explain the various applications of mobile computing.
5) Why do MAC scheme in wired network fail in wireless networks and how dose
the multiple access with collision avoidance (MACA) scheme work.
6) Explain the architecture of GSM with a neat diagram.
7) How is routing carried out in GSM networks?
8) Explain in detail about
a. Mobile Terminated Call
b. Mobile Originated Call
With suitable diagrams
9) List the various handovers carried out in GSM and explain any one of them in
detail.
10) How is Mobility Management done in GSM ?
11) Explain in detail about the General Packet Radio Service (GPRS)
2. UNIT II
TWO MARK QUESTIONS IN UNIT-II
1. Expand and explain WLAN?
2. What are the advantages of WLAN?
3. What is an ad-hoc network?
4. List the low power states of Bluetooth?
5. Expand and explain HIPERLAN?
6. What is IEEE 802.11 standard?
7. How is the physical layer subdivided in IEE 802.11 standard?
8. What is PLCP?
9. What is PMD?
10. What are the functions of MAC management?
11. Define SIFS.
12. Define PIFS.
13. Define DIFS.
14. What are the 2 types of scanning in roaming?
15. List the phases in EY-NPMA?
16. What are the different types of channels used in hiperlan2?
17. Differentiate p scanners and p supporters.
18. What is Passive Scanning?
19. What is Active Scanning?
20. List the merits and demerits of Bluetooth.
BIG QUESTIONS IN UNIT-II
1. Explain in detail the three phases of EY-NMPA in Hiperlan.
2. List the various information bases in Hiperlan and explain the same.
3. Discuss the architecture of Bluetooth in detail.
4. Explain the architecture of WIFI in detail.
5. Explain the architecture of WIMAX in detail.
6. Describe Hiperlan architecture with suitable diagrams.
7. List out the various MAC management services and explain any 2 of them in
detail.
8. Draw the MAC frame format and explain its various fields in detail.
9. Explain DFWMAC-DCF using CSMA /CA.
10. Explain DFWMAC-DCF with RTS/CTS extension.
11. Explain DFWMAC-DCF with polling.
3. UNIT III
TWO MARK QUESTIONS IN UNIT-3
1. What does the term mobile IP mean?
2. What are the 2 addresses of a mobile node?
3. What are the entities of Mobile IP?
4. What is Home Agent?
5. Define Triangular Routing.
6. What are the types of COA?
7. What are Advantages and Disadvantages of Infrared?
8. Define tunneling.
9. What is encapsulation?
10. What is decapsulation?
11. What are the types of encapsulation?
12. What are the steps in performing optimization?
13. Expand and explain DHCP.
14. What is DSDV?
15. How is routing carried out using DSR?
16. List the benefits of DSR.
17. Define ‘Reverse Tunneling’.
18. What is GRE?
19. What is mobility extension?
20. What is a foreign agent?
BIG QUESTIONS IN UNIT-3
1. Explain how
a. End to End packet delivery is done in mobile IP
b. Agent advertisement is done in mobile IP
2. Explain how registration of a Mobile Node is carried out with appropriate
4. request and reply packet formats.
3. Explain in detail about the IP in IP and minimal encapsulations.
4. Explain in detail about GRE encapsulation with the appropriate packet format.
5. Describe the process of optimization in Mobile IP with a suitable timeline
diagram.
6. Explain in detail about DHCP.
7. Discuss DSDV routing in detail.
8. Discuss DSR routing in detail.
9. Why is conventional routing in wired networks not suitable for wireless
networks? Substantiate your answers with suitable examples.
10. How is multicast routing carried out in ad-hoc networks?
UNIT 1V
TWO MARK QUESTIONS IN UNIT-1V
1. What do you mean by the term ‘Snooping TCP’?. What is its demerit?
2. What is ‘Indirect TCP’?
3. What is Mobile TCP? List its merits.
4. List out the advantages of I-TCP.
5. List out disadvantages of I-TCP.
6. What is WAP?
7. Define WAE.
8. What is WML?
9. Write short notes on WAP forum.
10. Distinguish between Traditional TCP and wireless TCP?
11. What is WTP? What are its classes?
12. List out the network elements of WAP.
13. What are the configuration parameters to adapt TCP to wireless environments?
14. State the requirements of WAP.
15. Name the layers of WAP.
16. What is WTP? What are its classes?
17. What is WSP?
18. Name some features of WSP adapted to web browsing.
19. What is WML?
20. What are the features of WML?
21. What are the advantages of WML Script over WML?
5. 22. Name the libraries specified by WML Script.
BIG QUESTIONS IN UNIT-1V
1. Explain in detail about WAP architecture.
2. Write notes on WDP and WTLS.
3. Write notes on wireless sessions protocol
4. Discuss about WAE.
5. Discuss about WTP and its classes.
6. Explain the following: Snooping TCP and Indirect TCP.
7. Explain about WML and WML script with the help of an example.
8. Explain classical TCP improvements and snooping TCP.
9. Discuss about the WWW programming model in detail.
10. Explain about the architecture of WTA.
1x.Aim for High dot blogspot dot com
UNIT V
TWO MARK QUESTIONS IN UNIT-V
1. What is Pervasive Computing?
2. What are the basic aspects of a Pervasive Computing environment?
3. What are the major choices available for battery design in Pervasive Computing
Devices?
4. Why does Power consumption plays a vital role in pervasive computing?
5. What are the different display device technologies available?
6. What are the 2 basic elements needed with respect to connectivity in Pervasive
Computing?
7. Compare and contrast the 1G 2G and 3G technologies.
8. What is meant by 2.5G technology?
9. List the different types of memories available for Pervasive Computing Devices.
10. Describe EPOX Operating System.
11. What is PALM OS?
6. 12. Explain briefly about BE OS.
13. Compare and contrast Windows and Linux OSes.
14. What does the term ‘FITALY’ mean?
15. Describe briefly about the tegic T9 dictionary mode.
16. What is ‘Ocatve’?.
17. What is meant by Bio-Metrics?
18. What is a ‘Haptic Interface’?.
19. What are three steps involved in the process of Synchronization?
20. Why is device management important in Pervasive Computing?
BIG QUESTIONS IN UNIT-V ANSWERS
1. Discuss in detail about any two Pervasive Applications of your choice in detail.
2. Explain about the various hardware components involved in Pervasive
Computing Devices.
3. Write brief notes on the following.
a. Speech Recognition
b. Handwriting recognition
c. Haptic Interfaces
d. QWERTY and FITALY keyboards
4. Explain in detail about Bio-Metrics. List out its merits and demerits.
5. How is synchronization carried out in a Pervasive Environment? Write brief
notes on the syncML tool.
6. What are the various issues related to device management and how are they
dealt with?
7. Explain how a Pervasive Web Application can be secured using an
‘Authentication Proxy’.
8. How security is achieved in MVC and JSP based applications?
9. Discuss in detail about the access form PCs.
10. How is access carried out in case of a PDA?
11. Explain in detail about access via WAP.
