FBISE 9th Class Computer Chapter 5 Computer Networks Short Questions Answers
FBISE 9th class Computer Chapter 5 Computer Networks Short Questions with answers are combined for all 9th class(Matric/ssc) Level students. Here You can prepare all Computer Chapter 5 Computer Networks short question in unique way and also attempt quiz related to this chapter. Just Click on Short Question and below Answer automatically shown. After each question you can give like/dislike to tell other students how its useful for each.
Class/Subject: 9th Class Computer
Chapter Name: Computer Networks
Board: Federal Board
Helpful For:
- Federal Boards 9th Class Computer Annual Examination
- Schools 9th Class Computer December Test
- Federal 9th Class Computer Test
- Entry Test questions related Computer
FBISE 9th Class Computer Chapter 5 Computer Networks Short Questions Answers
What is meant by a computer network?
A computer network can be defined as an interconnection of two or more computers to share data and other resources such as documents, printers, and Internet connections.
Define Data Transmission?
Data transmission is the process of sending data from one device to another. It consists of a sender, receiver, and the medium which carries the information.
List three modes of data transmission.
i. Simplex
ii. Half-duplex
iii. Full-duplex
Write a note on simple transmission mode.
A simple model provides data transmission in only one direction. One end is the sender and the other is the receiver. Transmission of data/information from keyboard to CPU or from CPU to the printer is always in one direction. Therefore, these are simplex transmissions. Radio and television broadcastings are also simple transmissions.
What is meant by Network Architecture?
Network architecture refers to the layout of the network that consists of computers, communication devices, software, wired or wireless transmission of data, and connectivity between components.
Write a note on Point-to-Point Network?
It is a type of network in which a message is sent from one computer to another via other computers in the network. Large networks such as wide area networks that connect cities and countries are organized in such a way.
What is meant by communication over the network?
The telephone network is now commonly used for data communications. The main reason for using the telephone network is that it exists all over the world.
What is a DSL modem?
A DSL modem is a sed to connect microcomputers to high-speed DSL connections. It is designed to provide high-speed Internet access. A DSL modem is an external device that connects to a computer via USB or Ethernet port. These ports are usually available at the back of the system unit. Wireless DSL modems are also available for connecting laptops and other wireless devices such as mobile phones to the internet.
What is Half-duplex Transmission mode?
A Half-duplex mode can send and receive data/information in both directions but not simultaneously. During data transmission, one end is the sender and the other is the receiver.
What is a Full-duplex transmission mode?
Half-duplex transmission is used in ATMs for withdrawal of cash, money transfer and paying bills, etc.
What is a Full-duplex transmission mode?
A Full-duplex mode is used to transmit data/information in both directions simultaneously.
What is a server computer?
A server is the main computer in a network that is used to make network resources and facilitates other computers.
What is meant by client computers?
Clients are computers in a network that access services made available by a server.
What is a Local Area Network (LAN)?
The local area network is commonly used. It is a network that covers a limited area, usually ranging from a small office to a campus of nearby buildings.
What is a Wide Area Network (WAN)?
A wide area network spans a large area, connecting several locations of an organization across cities, countries, and continents. A WAN is often made up of two or more LANs and/or MANs at each location of an organization and these LANs might be connected to form a WAN.
Why star topology is more reliable than bus or ring topologies?
i. Provides fast communication between computers.
ii. Easy to connect new devices to the network.
iii. Easy to detect and fix faults.
iv. Failure of one computer does not stop the functioning of the entire network.
What is ISDN?
ISDN stands for Integrated Services Digital Network. It provides a maximum speed of 128Kbps which is more than a Dial-up connection but less than DSL. It can transmit both voice and data at the same time over a single cable. It requires that the user has ISDN digital telephone service from a telephone company and uses a faster modem than a Dial-up modem. ISDN service is being replaced by faster DSL service.
What is CDMA technology?
CDMA stands for Code Division Multiple Access. It is wireless cellular communication technology. CDMA services include short messaging, voice, data, and video transmission. It can provide the speed of several Mbps for video transmission.
What is meant by Hardware sharing?
The network allows sharing of computer hardware such as hard disk and printer. A hard disk can be attached to a server to share it with other network users. A single hard disk can provide storage space to many users.
What is meant by Internet Sharing?
A single high-speed Internet connection can be shared with all the users over a network. There is no need to provide a separate internet connection to every user on the network.
What is meant by network topology?
The physical arrangement of network nodes is called network topology.
What is meant by Bus topology?
It is the simplest network topology. It consists of a single central cable known as a bus. All the devices are connected to the bus along its length to communicate with each other.
What are the advantages of Bus Topology?
i. Lowest cost topology to implement due to short cable length.
ii. Easy to add new computers.
iii. Easy to set up as compared to Star or Mesh topology.
iv. Suitable for small networks.
What is meant by Ring topology?
The ring network topology is shaped just like a ring. It is like a bus with both ends connected. All the messages travel in the same direction message from one node is sent to the next node. It is received by it if it is addressed to it otherwise it is ignored and passed on to the next until the destination is reached.
What is meant by Star Topology?
In star topology, all the nodes are connected to a central device called a switch or hub. It is one of the commonly used network topologies. A switch can connect 4, 8, 16, 24, or 32 nodes. A switch can be connected to another switch to expand the network.
What are the advantages of a star topology?
i. Provides fast communication between computers.
ii. Easy to connect new devices to the network.
iii. Easy to detect and fix faults.
iv. Failure of one computer does not stop the functioning of the entire network.
What is meant by Mesh Topology?
In mesh network topology, all the network nodes are connected to all the other nodes. Message sent on a mesh network, can take any possible path from source to destination. It is not commonly used since it is costly and difficult to implement.
What are the advantages of Mesh topology?
i. It is the most reliable network topology.
ii. Alternative paths are available in case a path is broken from source to destination.
What are the limitations of Mesh topology?
i. Most expensive topology to implement since it requires more cable than Bus, Ring, or star topologies.
ii. Difficult to implements as compared to other topologies.
iii. Difficult to add a new computer.
What is meant by Broadband?
Any type of Internet speed that is 256Kbps or above is known as broadband.
