Computer Knowledge

Computer Networks

2,256 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

Which of the following is/are true statements about multiplexing in networking?

  1. Frequency-division multiplexing (FDM) uses similar range frequencies over a single medium.

  2. FDM uses optical communication.

  3. Carrier Sense Multiple Access (CSMA) is an example of Time division Multiplexing.

  4. All of the above

  5. Only (2) and (3) are correct
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Carrier Sense Multiple Access, data streams are separated by time on the same medium. Hence it is an example of Time division Multiplexing.

Multiple choice

Which of the following is/are false about congestion in networking?

  1. Congestion occurs when the bandwidth is insufficient.

  2. Congestion causes slow response time.

  3. It reduces network throughput.

  4. Due to congestion, frame or data packet loss and the blocking of new connections.

  5. None of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

All of the above are the true statements.

Multiple choice

Which of the following is a false statement about network topology?

  1. In Ring topology, if a device fails then the entire network will fall.

  2. Ring topology can be used in school buildings.

  3. In Ring topology devices typically connect to the hub with Unshielded Twisted Pair (UTP).

  4. Star topology uses a router for connecting devices.

  5. In Ring topology, all messages travel through a ring in the same direction.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ring topology does not use Unshielded Twisted Pair (UTP) for connecting devices.

Multiple choice

Which of the following is/are false about Broadcast networks?

  1. These networks share a single communication channel.

  2. LANs (Local Area Networks) work as a Broadcast network.

  3. In Broadcast networks, the pair of routers are directly connected.

  4. Broadcast networks are used in Data Link Layer.

  5. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is false as the direct networking point apply for Point to Point networks. Broadcast networks can operate from multipoint channel.

Multiple choice

In a LAN configuration, ____________ is used to connect all the computers to each other.

  1. router

  2. modem

  3. switch

  4. UPS

  5. jack panel
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Router is a device to connect two different networks LAN and the Internet. Routers connect networks. A router links computers to the Internet, so users can share the connection.

(Source:Basics of Computer Networking and setting up of LAN - unit 5- A publication of International Telecommunicaion Union)

Multiple choice

Which of the following s not a transmission technology?

  1. Broadcast linking

  2. Narrowcast linking

  3. Point to point linking

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Broadcast and point-to-point are standard, well-documented transmission technologies used in networking. 'Narrowcast linking' is not a recognized transmission technology in networking literature or practice.

Multiple choice

Client-server computing is used in

  1. Interactive multi-media

  2. Network multi-media

  3. MPEG video

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Client-server architecture is fundamental to network multimedia applications where content servers deliver audio/video to multiple client devices simultaneously. Interactive multimedia (option A) can run standalone on a single machine without requiring a client-server model. MPEG (option C) is a video compression format standard, not a use case or application type.

Multiple choice

File transfer is .............

  1. An application program

  2. The function of the Application Layer

  3. A protocol of the Application Layer

  4. A web application
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

File transfer is a function of the Application Layer (Layer 7) in the OSI model. Protocols like FTP operate at this layer to enable file transfer between systems, making 'the function of the Application Layer' the correct interpretation.