Computer Knowledge

Computer Networks

2,461 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 is/are non-applicable to view http traffic on the mobile phone device via a computer proxy?

  1. To find the right IP address on the desktop.

  2. To change the proxy settings on the phone.

  3. To make sure that the proxy allows external connections.

  4. To make sure that both the mobile device and the proxy machine are on the same network.

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

All the statements are applicable to view http traffic on the mobile phone device via a computer proxy.

Multiple choice

Which of the following statements is/are incorrect about Web proxy server?

  1. A web proxy server is physically connected to the internal networks of the organisations.

  2. Web proxy server provides the user privacy.

  3. Web proxies also provide caching capabilities.

  4. Web proxies provide virus protection.

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

This is false statement. It does not provide any virus protection.

Multiple choice

How does an HTTP proxy work as a firewall?

  1. The proxy works on the client side of the firewall.

  2. The client is part of a network secured by the firewall and the server is external to the secured network.

  3. The server is connected to a network protected by a firewall with the client external to the network.

  4. The client must authenticate itself to the proxy, which can then pass the request to the server.

  5. Only (1), (2) and (4)

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

These are the correct statements about HTTP proxy firewall.

Multiple choice

Which of the following is/are applicable for HTTPS proxy?

  1. HTTPS proxy is a relayer.

  2. HTTPS proxy cannot cache anything.

  3. HTTPS proxy has a channel to the server and the client receives and validates server's certificate.

  4. All of the above

  5. Only (2) and (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These are the correct statements about HTTPS proxy.

Multiple choice

Which of the following is called 'Anonymous proxy'?

  1. This proxy server identifies itself as a proxy server but does not make the original IP address available.

  2. This proxy server identifies itself as a proxy server, but makes an incorrect original IP address available through the HTTP headers.

  3. This proxy server identifies itself as a proxy server and also makes the original IP address available through the HTTP headers.

  4. This type of proxy server does not identify itself as a proxy server and does not make available the original IP address.

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

This is known as 'Anonymous proxy'.

Multiple choice

Which of the following statements is/are incorrect about the HTTP proxy?

  1. HTTP proxy works as an interface for the web page and the server.

  2. It is used to speed up access to web pages.

  3. When the HTTP proxy forwards the request from the client to web server, then the location and identity of the computer making the original request is known to the web server.

  4. HTTP proxy can be used for networking applications.

  5. Both (2) and (3)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is incorrect as the location and identity of the computer making the original request is not known to the web server. It is confidential.

Multiple choice

Which of the following statements is/are correct about transparent proxy server?

  1. A transparent proxy server is like a caching server.

  2. In this proxy server, the client does not have the information about the proxy server.

  3. This proxy server is useful where the client side configuration is not easy.

  4. This type of server is also used in ISP's to reduce the load on the bandwidth usage.

  5. All of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

All are the correct statements about transparent proxy server.

Multiple choice

Which of the following is/are applicable for the SOCKS proxy?

  1. It is a general purpose proxy server that establishes a TCP connection to another server on behalf of a client.

  2. It routes all the traffic back and forth between the client and the server.

  3. SOCKS server does not interpret the network traffic between client and server in any way.

  4. All of the above

  5. Only (1) and (3)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All are the correct statements.

Multiple choice

Which of the following statements is/are correct?

  1. HTTP proxy does understand and interpret the network traffic that passes between the client and downstream servers.

  2. HTTP proxy can only be used to handle HTTP traffic.

  3. HTTP proxy can recognise often repeated requests and cache the replies to improve performance.

  4. All of the above

  5. Only (1) and (2)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These are the correct statements.

Multiple choice

Which of the following statements is/are incorrect about name resolutions when using a proxy?

  1. Do DNS name lookup at proxy end configuration option allows to access the private network.

  2. WinSCP will always do its own DNS, and will always pass an IP address to the proxy.

  3. WinSCP will do something it considers appropriate for each type of proxy.

  4. The name resolution is not possible in proxies.

  5. Only (3) and (4).
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is false as the name resolution is necessary while using proxies.

Multiple choice

What is the full form of OSI?

  1. Open System Interface

  2. Open System Interconnection

  3. Oldest System Interface

  4. Omnipresent System Interface
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

OSI stands for Open Systems Interconnection, which is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system.

Multiple choice

What is the full form of DNS?

  1. Dominant Name System

  2. Domain Number System

  3. Domain Neurons System

  4. Domain Name System
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Domain Name System (DNS) is the hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network.

Multiple choice

Directions: What is the full form of the abbreviations given in bold:

TCP

  1. Transmission Control Protocol

  2. Transmission Control Process

  3. Transmission Control Program

  4. Transmission Control Product
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite. It provides reliable, ordered, and error-checked delivery of a stream of octets between applications running on hosts communicating via an IP network.