Network security

By : Manglika Tripathi

Updated : Feb 26, 2021, 5:46

Network security for computer science is a topic from computer networks. Network security is a broad field that covers a host of devices, technologies, and processes. It is a set of configurations and rules that protects the confidentiality, integrity, and accessibility of data and computer networks using various hardware and software technologies.

Network security GATE CS syllabus consists of the authentication, digital certificates and signatures, basics of public and private key cryptography, and firewalls. Network security topics for GATE CS are also important for various government and competitive exams. Hence,you must practice the network security questions to excel in these exams.

Important Network Security Topics for GATE CS

Below is the list of important Network security topics for GATE CS based on the previous year Network security GATE questions and Network security syllabus for GATE.

Topic	Description
Security Problems	It deals with Secrecy, Authentication, Non-repudiation, and Integrity Control.
Network Security Model	It deals with the authentication process.
Cryptography	It deals with private-key and public-key cryptography, message authentication code, RSA Algorithm, Data Encryption Standard, Authentication using Cryptography.
Firewall	A network security device that monitors outgoing and incoming network traffic is called a Firewall. It determines if the traffic needs to be allowed or blocked based on a set of security configurations and rules.

Tips to Prepare for Network Security for GATE

Before you begin preparing for any competitive or government exam, you should go through its syllabus and the exam pattern. To prepare for the GATE exam, go through the Network security GATE syllabus and the exam pattern.
When you start studying, make handwritten Network security GATE notes. Such notes help during revision. If you do not wish to make notes for yourself, you can get an online Network security notes for GATE pdf.
Once you feel like you have a good hold on the topic, start solving Network security MCQ questions. It will help you understand the subtopics, and you can determine if you are strong or weak in them.
Prepare for the weaker subtopics and revise the strong ones. Once done, take Network security online quizzes and Network security online tests. You can find an online quiz and a test for all the topics on BYJU'S Exam Prep to help you with your GATE preparation.
Lastly, solve the previous year Network security GATE questions to gain confidence. To check your answers online, you can search for Network security GATE questions and answers pdf online.

Importance of Network Security in GATE Exam

Studying Network Security is essential because we use high-speed internet connections and use one or more routers at our homes and workplaces. We have to make sure that the router is properly secured to prevent external intrusion and exploitation. A firm network security system can help reduce the risk of data theft and loss, and data manipulation and sabotage.
Network Security is important for the security of various applications like emails, anti-malware, and anti-virus software.
For GATE, studying Network Security and other Computer Networks topics will help you score around 5 to 9 marks.
If you find Network Security interesting, you can also pursue your M.Tech/ME in this field. A broad range of career opportunities in the cybersecurity field is available for network security engineers.

Most Recommended Books for Network Security for GATE

When you prepare for any exam, studying Network Security concepts from a good book will ensure you understand the topic well. Given below are some of the best Network security books.

Book	Author
Computer Networking: A Top-Down Approach	James F. Kurose, Keith W. Ross
Computer Networks	Andrew Tanenbaum
Data Communication and Networking	Behrouz A. Forouzan

Why Prepare Network Security from BYJU'S Exam Prep?

BYJU'S Exam Prep is an online exam preparation community designed to help you prepare for competitive and government exams. You will find the best Network security study material for GATE CS on the BYJU'S Exam Prep app. You can ace your Network Security prep with Network security notes for CS available on BYJU'S Exam Prep. You can also attempt Network security quiz and get network security MCQ pdf for your preparation. With BYJU'S Exam Prep you can get all the latest exam notifications. You can also get expert guidance via live sessions on exam-related queries and clarify your doubts.

FAQs

Q: What is Network Security?

A: Network Security is a set of configurations and rules that protects the confidentiality, integrity, and accessibility of data and computer networks using various hardware and software technologies.

Q: What does Authentication mean?

A: Authentication is determining who is allowed to access sensitive information stored on a network. It verifies the identity of a user and establishes whether the communication partner is an imposter.

Q: What is Cryptography?

A: The science of converting a text stream into a code. Only the sender and the receiver can decode the coded text to access and read it.

Q: What is a public key?

A: A public key is a key shared with a large number of people through a common directory or system. It can also be used to verify signatures and encrypt messages.

Q: What is a private key?

A: A private key is a key shared only with a specific recipient. It is used to create signatures and decrypt messages.

Q: What is a firewall?

A: A network security device that monitors outgoing and incoming network traffic is called a Firewall. It determines if the traffic needs to be allowed or blocked based on a set of security configurations and rules.

Q: John signs a message digitally and sends it to his friend Dave. What does Dave require for the verification of the signature?

A: Dave requires the public key of John.