Network Security: Threats, Measures, and Best Practices

Question 1

Which network security measure defines rules to control the flow of network traffic?

Accepted Answer

Firewall

Answer

Encryption

Answer

Intrusion Detection System (IDS)

Answer

Anti-malware Software

Question 2

What's the primary purpose of a firewall?

Accepted Answer

Prevent unauthorized network access

Answer

Detect and remove malware

Answer

Encrypt network traffic

Answer

Grant secure remote network access

Question 3

Within the context of network security, what is a vulnerability?

Accepted Answer

A system or network weakness that can be exploited by attackers

Answer

A type of network attack

Answer

A security measure

Answer

A software update

Question 4

Which type of malware encrypts files and demands ransom for their decryption?

Accepted Answer

Ransomware

Answer

Trojan horse

Answer

Virus

Answer

Adware

Question 5

What's the main function of an intrusion detection system (IDS)?

Accepted Answer

Detecting and alerting on suspicious activity

Answer

Preventing network attacks

Answer

Removing malware from infected systems

Answer

Providing secure remote network access

Question 6

Which of the following is a key challenge in ensuring the security of a network?

Accepted Answer

Keeping up with the evolving threats

Accepted Answer

Balancing security and usability

Accepted Answer

Detecting and responding to attacks quickly

Accepted Answer

Training users on security best practices

Question 7

Which of the following is NOT a common type of network attack?

Accepted Answer

Cloud misconfiguration

Answer

Malware

Answer

Phishing

Answer

DoS

Question 8

What is the purpose of a firewall in a network security system?

Accepted Answer

To block unauthorized access to the network

Answer

To monitor network traffic for suspicious activity

Answer

To encrypt data before it is transmitted over the network

Answer

To perform backups of network data

Question 9

What is the difference between a virus and a worm?

Accepted Answer

A virus infects files, while a worm replicates itself over a network

Answer

A worm infects files, while a virus replicates itself over a network

Answer

Both viruses and worms infect files

Answer

Both viruses and worms replicate themselves over a network

Question 10

Which of the following is NOT a type of network attack?

Accepted Answer

Data encryption

Answer

Malware

Answer

Phishing

Answer

Spam

Question 11

Which of the following is a type of malware that can encrypt files and demand a ransom payment?

Accepted Answer

Ransomware

Answer

Virus

Answer

Trojan

Answer

Spyware

Question 12

Which of the following techniques is commonly employed by attackers to gain unauthorized access to a network by impersonating a legitimate user?

Accepted Answer

Spoofing

Answer

Phishing

Answer

Brute force

Answer

DDoS

Question 13

Which tool is specifically designed to monitor network traffic and identify suspicious activities?

Accepted Answer

Intrusion detection system (IDS)

Answer

Firewall

Answer

Network scanner

Answer

Antivirus

Question 14

Identify the network topology where all devices are connected to a central point?

Accepted Answer

Star

Answer

Ring

Answer

Bus

Answer

Mesh

Question 15

Which protocol is used to establish secure communication over the internet?

Accepted Answer

HTTPS

Answer

Telnet

Answer

FTP

Answer

HTTP

Question 16

In the United Kingdom, which legislation safeguards the protection of personal data?

Accepted Answer

Data Protection Act 2018

Answer

Copyright, Designs, and Patents Act 1988

Answer

Computer Misuse Act 1990

Answer

Freedom of Information Act 2000

Question 17

Which of the following is considered an uncommon type of network attack?

Accepted Answer

Physical damage

Answer

Denial of service

Answer

Malware

Answer

Phishing

Question 18

Which network vulnerability can attackers exploit to gain unauthorized access?

Accepted Answer

Weak password

Answer

Firewalls

Answer

VPN

Answer

Antivirus software

Question 19

Which practice is considered a fundamental step in maintaining a secure network?

Accepted Answer

Implementing a firewall

Answer

Leaving ports open

Answer

Using simple passwords

Answer

Neglecting software updates

Question 20

Identify the type of malware designed to steal sensitive information.

Accepted Answer

Trojan horse

Answer

Spam

Answer

Virus

Answer

Worm

Question 21

Which tool is used to detect and prevent network intrusions?

Accepted Answer

Intrusion detection system

Answer

VPN

Answer

Firewall

Answer

Antivirus

Question 22

Which of the following is NOT a benefit of using a VPN?

Accepted Answer

Increased speed

Answer

Access to blocked content

Answer

Enhanced privacy

Answer

Improved security

Question 23

Which of the following is a type of network security protocol?

Accepted Answer

SSL

Answer

HTTP

Answer

DNS

Answer

FTP

Question 24

Which of the following is a key principle of network security?

Accepted Answer

Defense in depth

Answer

Trust but verify

Answer

Single point of failure

Answer

Least privilege

Question 25

Which of the following is a role of a network security administrator?

Accepted Answer

Monitoring and responding to security incidents

Answer

Installing and maintaining hardware

Answer

Managing the network infrastructure

Answer

Providing technical support to users