Computer Knowledge

Computer Networks

2,095 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

What is the role of OSI model?

  1. It covers all aspects of network communications.

  2. It understands and designs network architecture.

  3. It is a layered framework for the design of network systems that allows communication between only two different systems.

  4. It shows how to facilitate communication between two systems with changing the logic of the underlying hardware and software.

  5. It consists of seven related layers with no separation.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Option 1 is correct.

Multiple choice

What is a ' Frame Ready' ?

  1. Network that uses two OSI protocol layers as against there used I x 25

  2. Network used to send anaglog in formation such as voice and data

  3. A virtual circuit

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

The question appears to ask about Frame Relay, a WAN technology that operates at the lower two layers of the OSI model (Data Link and Physical layers). However, the question text contains typos ('Frame Ready' instead of 'Frame Relay', 'I x 25' instead of 'X.25'). Frame Relay was designed as a more efficient alternative to X.25 for packet-switched data networks.

Multiple choice

Which of the following is a network where a huge computer does all computing and front end PCs are dumb terminals?

  1. Client Server

  2. Mainframes

  3. Master Slave

  4. Internet
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mainframe architecture uses centralized computing where a powerful mainframe handles all processing, and front-end devices (terminals) are essentially dumb terminals that only handle input and display. Client-server distributes processing, master-slave is a different pattern, and Internet is fully distributed.

Multiple choice

Telnet helps in

  1. treansferring files across net

  2. connecting to television

  3. remote login

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Telnet is a network protocol that enables remote terminal access, allowing users to log into and control distant computers over a network by providing a command-line interface.

Multiple choice

A network that spreads over cities is

  1. anyone of these

  2. MAN

  3. LAN

  4. WAN
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

WAN (Wide Area Network) covers large geographic areas including cities, countries, or continents, connecting multiple LANs and MANs over long distances.

Multiple choice

Which of the following is not a network?

  1. Local area network

  2. Optical fibre

  3. Wide area network

  4. All are networks
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Optical fiber is a transmission medium (a physical cable that carries data as light signals), not a network itself. Networks like LAN and WAN are systems of interconnected computers.

Multiple choice

Ethernet uses

  1. bus topology

  2. ring topology

  3. mesh topology

  4. star topology
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Traditional Ethernet (especially early versions like 10Base5 and 10Base2) uses bus topology where all devices share a common communication medium. Modern Ethernet using switches typically uses star topology, but the question asks about Ethernet's fundamental design. Ring topology is used by Token Ring, mesh in complex networks, and star requires a central hub.

Multiple choice

Which of the following is not true about workgroup [peer to peer] logical topology?

  1. A collection of computers connected together to share the resources is called workgroup.

  2. Any Operating system can be configured as workgroup model.

  3. Workgroup logical topology is suitable for smaller organisations.

  4. Servers are used in workgroup.

  5. No administrator is required in workgroup logical topology.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Server is a computer from which several clients are connected but in workgroup topology all computer are equals hence it is incorrect  statement.