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

Which of the following is referred to as an orphan in a client-server model?

  1. A waiting client when the server crashes after carrying out the request, but before sending the reply

  2. A running server with no waiting parent.

  3. A lost message

  4. An unacknowledged message

  5. A duplicate message
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a client crashes after starting a RPC , the server whose process continues to run is called an orphan and causes wastage of CPU cycles and other resources.

Multiple choice

What is a Router?

  1. A calculating device

  2. A networking device

  3. A connector

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

It is used to connect one computer to its neighbor or other hosts in a network.

Multiple choice

Which of the following is a software or a piece of computer hardware that can intercept and log traffic that passes over a digital network?

  1. FTP bounce attack

  2. Spoofing attack

  3. Packet analyser

  4. LAND

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

A packet analyser (also known as a network analyser, protocol analyser or packet sniffer—or, for particular types of networks, an Ethernet sniffer or wireless sniffer) is a computer program or piece of computer hardware that can intercept and log traffic that passes over a digital network or part of a network.

Multiple choice

Which of the following types of 'Network Security Attacks' is passive in nature?

  1. SQL injection

  2. Port scanner

  3. Smurf attack

  4. Spoofing attack

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

A port scanner is a software application designed to probe a server or host for open ports. This is often used by administrators to verify security policies of their networks and by attackers to identify running services on a host with the view to compromise it.