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 layers of TCP/IP is designed to allow peer entities on the source and destination hosts to carry on a conversation just as in the OSI transport layer?

  1. Host-to-Host layer

  2. Internet layer

  3. Transport layer

  4. Application layer

  5. Session layer
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This layer of TCP/IP is designed to allow peer entities on the source and destination hosts to carry on a conversation just as in the OSI transport layer.

Multiple choice

Which of the following fields in IPv4 protocol header is 13 bits and specifies the offset of the data field of this packet from the starting point of the data field of the fragmented source packet?

  1. Identification

  2. Flags

  3. Fragmentation offset

  4. Protocols

  5. Checksum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This field in IPv4 protocol header is 13 bits and specifies the offset of the data field of this packet from the starting point of the data field of the fragmented source packet.

Multiple choice

Protocols are the

  1. agreements to establish how two companies interact with each other

  2. agreements between two computers

  3. agreements between many computers

  4. agreements to establish how computers should exchange information
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protocols are standardized rules that define how computers exchange information and communicate over a network. Option D correctly captures this definition. Options A, B, and C are incomplete or incorrect because protocols are not about company interactions (A), not limited to two computers (B), and specify the purpose of communication rather than just quantity (C).

Multiple choice

In which of the following security techniques, packets can arrive in any order and the protocol suit is responsible for assembling the packet stream in proper order before passing it along the application?

  1. Message integrity check

  2. Personal firewall

  3. Stateful inspection firewall

  4. Transport layer security

  5. Mandatory access control
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this security technique, packets can arrive in any order and the protocol suite is responsible for reassembling the packet stream in proper order before passing it along to the application.