Computer Network GATE Questions with Answers

By BYJU'S Exam Prep

Updated on: September 25th, 2023

Computer Network GATE Questions with answers are an important part of the GATE CSE syllabus. They will help in understanding the concepts and principles of computer networks which are essential for anyone pursuing a career in this field. In this blog, we will be discussing some of the commonly asked Computer Network GATE questions. The Graduate Aptitude Test in Engineering (GATE) is a highly competitive examination that tests the knowledge and aptitude of engineering students in various disciplines.

Download Computer Network GATE Questions  with Answers PDF

This blog post will explore some common types of Computer Network GATE Questions that appear on the GATE exam. The computer network is also essential to modern computing and communication systems. As a result, it has become a crucial topic for study and examination, particularly in the context of the GATE exam. This blog post will cover some of the most common computer network GATE questions you may encounter in the exam. Candidates can find a downloadable PDF for the Computer Network GATE questions in the blog below.

Computer Network GATE Questions Overview

The GATE CSE exam may test one’s knowledge of Computer Networks subject in various ways, including theoretical questions, multiple-choice questions, numerical problems, and multiple select questions. Other Information about Computer network GATE questions and weightage is shared below.

  • The weightage of the Computer Network in the GATE CSE exam is 6-7 marks.
  • The 2-3 questions are asked every year from Computer Network subject.
  • Some of the topics of the Computer Network include – Concept of layering, LAN technologies, Flow and error control techniques, switching, etc.

Computer Network GATE Questions with Answers

Question 1: What is the difference between a router and a switch in a computer network?

Answer: A router is a networking device that forwards data packets between computer networks, while a switch is a device that connects multiple devices within a single network. The main difference between them is that routers operate at the network layer and can connect networks of different types, while switches operate at the data link layer and are used to connect devices within the same network.

Question 2: What is TCP/IP and how does it work in computer networks?

Answer: TCP/IP is a suite of communication protocols that govern the transmission of data over the Internet. It consists of two main protocols: Transmission Control Protocol (TCP) and Internet Protocol (IP). TCP provides a reliable, ordered, and error-checked delivery of data packets, while IP handles the routing of packets between network nodes. Together, TCP/IP enables computers to communicate with each other over the internet.

Question 3: What is the purpose of DNS in computer networks?

Answer: DNS (Domain Name System) is a system that translates human-readable domain names into IP addresses that computers can understand. It enables users to access websites and other resources on the internet using easy-to-remember domain names instead of hard-to-remember IP addresses.

Question 4: What is the difference between symmetric and asymmetric encryption in computer networks?

Answer: Symmetric encryption is a method of encryption where the same key is used to encrypt and decrypt data. This means that both the sender and receiver must have access to the same key. Asymmetric encryption, on the other hand, uses a public key and a private key to encrypt and decrypt data. The public key is used to encrypt data, while the private key is used to decrypt it.

Question 5: What is a firewall and how does it work in computer networks?

Answer: A firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. It can either allow or block traffic based on criteria such as IP addresses, port numbers, and protocols. Firewalls can help protect networks from unauthorized access, viruses, and other security threats.

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