Computer Knowledge

Computer Networks

2,614 Questions

Computer networks involve the architecture, protocols, and security measures used for digital communication. This collection covers OSI model layers, IP addressing, data transmission, and cryptographic standards. These concepts are vital for the computer knowledge sections of banking and government exams.

OSI model layersNetwork protocolsIP subnet maskingData encryption standardsServer configurationsNetwork commands

Computer Networks Questions

Multiple choice

Which of the following identifiers in MTP packet format is used together with the multicast Network Service Access Points (NSAP) to form the destination transport service access point of all packets multicast to the entire web?

  1. Unknown connection identifier

  2. Multicast connection identifier

  3. Unicast identifier

  4. Master

  5. Producer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This identifier in MTP packet format is used together with the multicast Network Service Access Points (NSAP) to form the destination transport service access point of all packets multicast to the entire web.

Multiple choice

Which of the following types of bit-rate in non-real time services is used for connections that transport variable bit rate traffic for which there is no reliance on time synchronisation between the traffic source and destination?

  1. nrt-VBR

  2. ABR

  3. UBR

  4. GFR

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

nrt-VBR refers to non-real time variable bit rate. It is a type of bit-rate in non-real time services and is used for connections that transport variable bit rate traffic for which there is no reliance on time synchronisation between the traffic source and destination.

Multiple choice

HTTP stands for

  1. Hyper Text Transfer Protocol

  2. Hetro Text Transfer Protocol

  3. Hyper Tool Transfer Protocol

  4. Hyper Text Transfer Protocell
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Correct answer is (1). 

Multiple choice

A client-server system uses a satellite network, with the satellite at a height of 70,000 km. What is the best-case delay in response to a request?

  1. 933 msec

  2. 743 msec

  3. No delay

  4. 827 msec

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

The request in the client-server system travelled  up and down in the medium, so the response also. Total path covered=70,000*4=280,000 km. Then the delay in response= 280,000/ (speed of light in air and vacuum)= 280,000 (km) /300,000 (sec)= 933 msec.

Multiple choice

Expand VOIP.

  1. Valid Output Input Procedure

  2. Voice Over International Protocol

  3. Voice Over Indian People

  4. Voice Over Internet Protocol
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

VOIP stands for Voice Over Internet Protocol. It's a technology that allows voice communication to be transmitted over the internet rather than traditional telephone lines. The other options - Valid Output Input Procedure, Voice Over International Protocol, Voice Over Indian People - are fabricated expansions.