Spring 2021 Name: Robel Rana Id: 1935202522 CSE 313 Data Communication. Submit date: 30-May-2021

1. ASSIGNMENT-01
Course Title: Data Communication.
Course code: CSE-313
SUBMITTED TO:
Name: Pranab Bandhu Nath
Designation: Lecturer
Department: CSE
City University
SUBMITTED BY:
Name: Robel Rana
ID Number: 1935202522
Batch: 52th
(eve)
Program: B.Sc in CSE.
Submission Date: 30-05-2021

2. 1. What is Data Communication?
Answer: 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
2. What is Network?
Answer: A network consists of two or more computers that are linked in order to share
resources. such as printers and CDS, exchange files, or allow electronic communications.
3. What is PAN?
Answer: PANS can be used for communication among the personal devices themselves,
or for connecting to a higher level network.
4. What is LAN?
Answer: That is use 5000 device and Its circumference is 1 kilometers wide. LAN is a
Computer network that interconnects computers within a limited area such as a
residence, school, laboratory, university campus or office building.
5. What is MAN?
Answer: A metropolitan are network (MAN) is smaller than a wide are network (WAN)
but larger then a local area network (LAN). It is confined to the metropolitan area. Its
circumference is 10 kilometers wide.
6. What is WAN?
Answer: Wide area network is a large network of information that is not tied to a single
location. That extends over a large geographic area for the primary purpose of computer
networking.

3. 7. What is NIC?
Answer: NIC is a computer hardware component that connects a computer to a
computer network. A network interface card 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. MAC address is attached
to this card.
8.What is MAC?
Answer: MAC addresses are used to communicate on the local area network. MAC is a
unique identifier assigned to a network interface controller. It have 48 bit. There is a
physical and logical addressing.
9.What is IP?
Answer: It's defines addressing methods that are used to label the datagram with source
and destination information.
10.What is port?
Answer: Port is a communication endpoint. A port is a logical construct that identifies a
specific process or a type of network service.
11.What is HUB?
Answer: All device can access data. Hub is a network hardware device for connecting
multiple Ethernet devices together and making them act as a single network segment.
12.What is Switch?
Answer: Switch uses MAC addresses. A network switch is a multiport network bridge.
13. What is Router?
Answer: Router uses IP and MAC. A router is a networking device the forwards data
packets between computer networks.

4. 14.What is Bridge?
Answer: Bridge is a networking device. It is used to connect two or more LAN
networks.
15. What is Repeater?
Answer: It is used to connect two or more MAN network. In telecommunication, a
repeater is an electronic device that receives a signal and retransmits it. Repeaters ate
used to extend transmissions so that the signal can cover longer distances of be the
received on the others side of an obstruction.