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 different modes of communication and their uses information technology communication systems physics

In internet terminology IP means 

  1. Internet Provider

  2. Internet Protocol

  3. Internet Procedure

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

IP stands for Internet Protocol. The Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet.

IP has the task of delivering packets from the source host to the destination host solely based on the IP addresses in the packet headers

Multiple choice different modes of communication and their uses information technology communication systems physics

The packets of an internet message

  1. take a predetermined path

  2. take a path based on packet priority

  3. go along different paths based on path availability

  4. take the shortest path from source to destination
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

All data transfers across the Internet work on this principle. It helps networks manage traffic -- if one pathway becomes clogged with traffic, packets can go through a different route. This is different from the traditional phone system, which creates a dedicated circuit through a series of switches. All information through the old analog phone system would pass back and forth between a dedicated connection. If something happened to that connection, the call would end.

That's not the case with traffic across IP networks. If one connection should fail, data can travel across an alternate route. This works for individual networks and the Internet as a whole. For instance, even if a packet doesn't make it to the destination, the machine receiving the data can determine which packet is missing by referencing the other packets. It can send a message to the machine sending the data to send it again, creating redundancy. This all happens in the span of just a few milliseconds.

Multiple choice

What does UDP stand for?

  1. User datagram protocol

  2. Unified data protocol

  3. Unified datagram protocol

  4. User data protocol
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

UDP stands for User Datagram Protocol. It is a connectionless communication protocol used across the internet for time-sensitive transmissions.

Multiple choice

What does TCP stand for?

  1. Transport control protocol

  2. Transfer control protocol

  3. Transmission control protocol

  4. Transaction control protocol
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice

Server that is used to buffer between WAN is called

  1. Internet Server

  2. HTTP Proxy Server

  3. Mail Server

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

An HTTP Proxy Server acts as an intermediary for requests from clients seeking resources from other servers, often used for buffering, security, or filtering.

Multiple choice

Sometimes you see "TCP/IP". What does TCP Stand for?

  1. Tall Call Protocol

  2. Telephone Communication Protocol

  3. Transmission Control Protocol

  4. Traffic Control Protocol
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

TCP stands for Transmission Control Protocol, which is a core protocol of the Internet protocol suite.

Multiple choice

Signaling protocol used on ISDN circuits

  1. DID

  2. Q.931

  3. MOS

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

Q.931 is a network layer protocol in the ISDN protocol suite used for establishing, maintaining, and terminating network connections between the two DTEs.