Network Security: Its Importance and Security

Question 1

What is Network Security?

Answer 1

Activities designed to protect a network and its data from threats such as viruses, hacker attacks, denial of service attacks, data interception and theft, and equipment failure

Question 2

What are three ways to protect data confidentiality?

Answer 2

1. Ensuring only authorized users can access the parts of a network and its resources that they have a reason to require
2. Stopping misuse
3. Encrypting data

Question 3

What is Correctness?

Answer 3

Data should not be changed without authorization

Question 4

What is Availability?

Answer 4

Making sure that protection is put in place to prevent failures caused by criminals

Question 5

What is DoS?

Answer 5

Denial Of Service

Question 6

What is a Denial of Service attack?

Answer 6

an attack on a network that attempts to prevent legitimate users from accessing its service

Question 7

What are some things that a virus of DoS attack can do?

Answer 7

• slow down network performance
• delete data
• allow data to be stolen of eavesdropped on
• alter data of program code

Question 8

What are 3 examples of why Network Security is important?

Answer 8

• business success: data on the network may be vital for running an organization
• privacy: data stored may be sensitive
• financial: data stored may be financially valuable

Question 9

What is access control?

Answer 9

this determines which users have access to which data and what they are allowed to do with it

Question 10

What is a firewall?

Answer 10

A firewall is a network security system that monitors and controls data that is moving from one network to another. It can be software or hardware

Question 11

What is hacking?

Answer 11

the act of gaining unauthorized access to a computer system and the data it contains

Question 12

What is physical security?

Answer 12

Controlling access to critical parts of a network using physical methods rather than software

Question 13

Why is physical security important?

Answer 13

Anyone with physical access to the server can more easily bypass the security provided by the authentication system or access control system

Question 14

What is malware?

Answer 14

short for malicious software, it is used as a generic term for any kind of software that is designed to disrupt the use of a computer system

Question 15

what are some examples of physical security?

Answer 15

• keep access door locked
• use biometric security recognition
• install burglar alarms

Question 16

What 3 items must be included in a company’s network policy?

Answer 16

1. what users can and cannot do on a network
2. what should be done if there is a problem or breach in the system
3. when backups will be made and where they will be kept

Question 17

State 3 security issues that programmers should consider when they are designing new software

Answer 17

1. whether data needs to be encrypted
2. whether the software is exposed to hackers
3. if authentication is required

Question 18

What are 3 ways to secure a network?

Answer 18

• access control
• firewalls
• physical security