Data communication refers to the transmission of digital data between computers, while a network allows connected devices to exchange files and communicate electronically. A personal area network (PAN) connects devices within 10 meters of an individual, while a local area network (LAN) connects devices within a building. Network interface cards (NICs) and media access control (MAC) addresses facilitate device connections to networks. Switches and hubs are hardware that connect networked devices to share resources and exchange data.
Wireless networks come in many different forms, cover various distances, and provide a range of low to
high bandwidth depending on the type installed. Wireless LAN – Wireless LAN enable Laptop users to
access the Network of a company.
Wireless networks come in many different forms, cover various distances, and provide a range of low to
high bandwidth depending on the type installed. Wireless LAN – Wireless LAN enable Laptop users to
access the Network of a company.
Here is the short description about computer network components.
Explained here about networking components such as Hub, Switch, Repeater, Bridge and so on.
Here, I explained about IP Addressing, Subnet Mask etc. And also explained IP convert into Binary technique. I tried to describe details about IP address.
This is Data Communication Lecture Assignment. Here discussed about many topics above the subject. I am really learned more from Data Communication subject. Specially thanks to Dear Respectable Sir Pranab Bandhu Nath
Here is the short description about computer network components.
Explained here about networking components such as Hub, Switch, Repeater, Bridge and so on.
Here, I explained about IP Addressing, Subnet Mask etc. And also explained IP convert into Binary technique. I tried to describe details about IP address.
This is Data Communication Lecture Assignment. Here discussed about many topics above the subject. I am really learned more from Data Communication subject. Specially thanks to Dear Respectable Sir Pranab Bandhu Nath
Introduction to Computer Networks: Basic concept of Computer networks Goals o...MostafizurRahmanMonn
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1. What is Data Communication?
2. What is a network?
3. What is Node?
4. What is a network interface card (NIC)?
5. Types of Computer Networks
6. What is a MAC Address?
7. What Types of Addressing?
8. What is a port?
9. What are the different port numbers?
10.What is Hub?
11.What is Router?
12.What is a Bridge?
13.What is Gateway?
14.What is Brouter?
15.What is OSI Model?
16.What is the OSI model (Open Systems Interconnection)?
17.7 layers of the OSI model?
18.What Is the TCP/IP Model?
19.What Is the TCP/IP Model?
20.Classification of IP address Addressing?
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The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
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Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
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• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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2. 1. What is Data communication?
Ans: Data communications is the process of using computing and
communication technologies to transfer data from one place to another, or
between participating parties.
2. What is Network?
Ans: A network consists of two or more computers that are linked in order to
share resources, exchange files, or allow electronic communications.
3. What is the difference between data communication and network?
Ans: Data Communication: Data communications refers to the transmission of
this digital data between two or more computers and a computer network or
data network is a telecommunications network that allows computers to
exchange data.
Network: The physical connection between networked computing devices is
established using either cable media or wireless media. The best-known
computer network is the Internet.
4. What is PAN?
Ans: Personal Area Network (PAN) is a the computer network that connects
computers/devices within the range of an individual person. As PAN provides
a network range within a person’s range typically within a range of 10
meters(33 feet) it is called as Personal Area Network.
3. 5. What is Node?
Ans: A node is any active, physical, electronic device attached to a network.
6. What is LAN?
Ans: Local Area Network (LAN) is a data communication network connecting
various terminals or computers within a building or limited geographical area.
The connection among the devices could be wired or wireless.
7. What is MAC Address?
Ans: A media access control address (MAC address) is a unique identifier
assigned to a network interface controller (NIC) for use as a
network address in communications within a network segment.
8. What is NIC?
Ans: A network interface card (NIC) is a hardware component without which a
computer cannot be connected over a network. It is a circuit board installed in a
computer that provides a dedicated network connection to the computer. It is
also called network interface controller, network adapter or LAN adapter.
4. 9. What is an IP Address?
Ans: An IP (Internet Protocol) address is a numerical label assigned to the
devices connected to a computer network that uses the IP for communication.
10. What are the types of addresses?
Ans: Four types of addresses - Physical address, Logical address, Port address,
and Application-specific address.
11. What is a Port?
Ans: A port provides a specific physical interface between devices. It also
refers to a point of connection between networks in the form of a node on a
network where data packets are directed towards en route to the final
destination address.
12. What are network devices?
Ans: Network devices, or networking hardware, are physical devices that are
required for communication and interaction between hardware on a computer
network.
13. What is Hub?
Ans: A hub is a physical layer networking device which is used to connect
multiple devices in a network. They are generally used to connect computers in
a LAN.
5. 14. What is Switch?
Ans: A switch is a device in a computer network that connects other devices
together. Multiple data cables are plugged into a switch to
enable communication between different networked devices.
15. What is Bit and Byte?
Ans: Bit - A bit is the smallest unit of data in a computer. A bit has a single
binary value, either 0 or 1.
Byte - The byte is defined as a contiguous sequence of bits in a serial data
stream representing the smallest distinguished unit of data.
16. MAC Address is 48 bit?
Ans: The IEEE 802 MAC address originally comes from the Xerox Network
Systems Ethernet addressing scheme. This 48-bit address space contains
potentially 248 possible MAC addresses. The IEEE manages allocation of MAC
addresses, originally known as MAC-48 and which it now refers to as EUI-
48 identifiers.
17. What is Router?
Ans: A router is a switching device for networks, which is able to route
network packets, based on their addresses, to other networks or devices.
6. 18. What is Bridge?
Ans: A bridge operates at data link layer. A bridge is a repeater, with add on
the functionality of filtering content by reading the MAC addresses of source
and destination. It is also used for interconnecting two LANs working on the
same protocol. It has a single input and single output port, thus making it a 2
port device.
19. What is Repeater?
Ans: A repeater operates at the physical layer. Its job is to regenerate the signal
over the same network before the signal becomes too weak or corrupted so as to
extend the length to which the signal can be transmitted over the same network.
An important point to be noted about repeaters is that they do not amplify the
signal. When the signal becomes weak, they copy the signal bit by bit and
regenerate it at the original strength. It is a 2 port device.
20. What is an IP? Type of IP.
Ans: An IP (Internet Protocol) address is a numerical label assigned to the
devices connected to a computer network that uses the IP for communication.
There are mainly four types of IP addresses:
(a) Public, (b) Private, ( c) Static, (d) Dynamic.
7. 21. Class of IP.
Ans:
22. What is Loopback Address?
Ans: A loopback address is a special IP address, 127.0.0.1, reserved by
InterNIC for use in testing network cards. This IP address corresponds to the
software loopback interface of the network card, which does not have
hardware associated with it, and does not require a physical connection to a
network.
Class A 1.0.0.1 to 126.255.255.254
Class B 128.1.0.1 to 191.255.255.254
Class C 192.0.1.1 to 223.255.254.254
Class D 224.0.0.0 to 239.255.255.255