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

Give an advantage of star topology.

  1. Failure of one node or link doesn't affect the rest of network.

  2. Cable length required for this topology is the least compared to other networks.

  3. Each segment is provided with dedicated point to point wiring to the central hub.

  4. Expansion and modification in topology can be done without disrupting other nodes.

  5. Each computer has equal access to resources.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is an advantage of star topology.

Multiple choice

Which of the following is a disadvantage of ring topology?

  1. Network is highly dependent on the wire which connects different components.

  2. It is difficult to detect and troubleshoot fault at individual station.

  3. Performance as well as the number of nodes which can be added in such topology is dependent on the capacity of central device.

  4. There are high chances of redundancy in many of the network connections.

  5. Scalability of the network depends on the type of cable used.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a disadvantage of ring topology.

Multiple choice

Choose the correct abbreviation.

SAN

  1. Storing Area Networking

  2. Storage Access Networking

  3. Storage Area Network

  4. Storage Application Networking
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SAN stands for Storage Area Network, which is a dedicated high-speed network that provides access to block-level storage. 'Storing' (A) is grammatically incorrect in the acronym. 'Access' (B) and 'Application' (D) are not part of the standard SAN terminology.

Multiple choice

Identify the true statement.

  1. A computer or a laptop is mandatory to access internet.

  2. Internet can be used even without a computer.

  3. Internet can be used even without a service provider.

  4. You do not necessarily require a modem or a LAN card to access internet over a computer.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Internet can indeed be accessed without a traditional computer - mobile phones, tablets, smart TVs, and other IoT devices can all connect to the internet. Option A is false because many non-computer devices can access internet. Option C is false - you need an ISP/service provider. Option D is false - you need a network interface (modem, LAN card, or wireless adapter) to connect.

Multiple choice

Identify the false statement.

  1. Network is a connectivity of two or more computers.

  2. Network is a connectivity of two computers.

  3. Network is a connectivity of keyboard, mouse, speakers, printer & scanner to the computer.

  4. Network can be a connectivity of two or more computers in two different countries.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A computer network connects computers and devices to share resources. Option C is FALSE - connecting peripherals (keyboard, mouse, speakers, printer, scanner) to a single computer is NOT networking; those are peripheral connections. Options A, B, D correctly describe networks (two or more computers, can span countries). The question asks for the false statement.

Multiple choice

Identify the false statement.

  1. You would require an IP phone to make calls over the internet.

  2. You would require a microphone & a speaker to make calls over internet.

  3. You would require a calling headset to make calls over internet.

  4. You just need a computer with internet connection & no microphone is required for making calls.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The question asks for the FALSE statement. Option D is clearly FALSE - making voice calls over internet REQUIRES audio input (microphone) to transmit your voice. Options A, B, C describe legitimate requirements for internet calls (IP phone, microphone/speaker, headset). Without a microphone, you can receive audio but cannot send your voice.

Multiple choice

Choose the correct abbreviation.

LAN

  1. Local Amicable Network

  2. Least Accessed Network

  3. Local Area Network

  4. Lower Access Network
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

LAN is a standard networking abbreviation that stands for Local Area Network. It connects computers and devices within a limited geographical area such as a home, school, office building, or campus, allowing them to share resources and information.

Multiple choice

Fill in the blank.

A connectivity of two or more computers in a particular location is called ________ .

  1. wide area network

  2. local network system

  3. local area network

  4. universal connectivity area
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

LAN stands for Local Area Network, which connects computers and devices within a limited geographical area such as a single building, office, or campus. It allows connected devices to share resources like files, printers, and internet connections.

Multiple choice

Net telephony is closely linked to

  1. PSTN networks

  2. BPO centers

  3. MTNL

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

Net telephony (internet-based voice communication) is closely linked to VoIP (Voice over Internet Protocol) technology. VoIP is the underlying technology that enables voice communication over internet networks instead of traditional PSTN (Public Switched Telephone Network). Services like Skype, Vonage, and other internet telephony services use VoIP protocols.

Multiple choice

LAN is the network used to interconnect

  1. files in a computer

  2. programs in a computer

  3. computers in a building or campus

  4. all of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

LAN (Local Area Network) connects computers within a limited geographic area like a single building, office, or campus. It does not directly interconnect files or programs - those are stored on the computers themselves. The network connects the devices, not the data directly. Option C correctly identifies LAN's purpose.

Multiple choice

Which of the following is a time division switch?

  1. TSI

  2. TDM bus

  3. Crosspoint

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

A TDM (Time Division Multiplexing) bus is a time division switch that routes data by allocating specific time slots to different channels. Unlike crosspoint switches which use space division, TDM buses share a common medium by time-slicing.