Master OS Security Tools and Techniques for Cybersecurity

Question 1

In the context of operating system (OS) security, which practice is considered the most critical for maintaining a secure system?

Accepted Answer

Regularly installing security updates

Answer

Disabling non-essential services

Answer

Enforcing robust password policies

Answer

Deploying intrusion detection systems

Question 2

What is the primary purpose of an intrusion detection system (IDS) in a cybersecurity context?

Accepted Answer

Detecting and reporting suspicious activities on a network

Answer

Preventing unauthorized access to a system

Answer

Encrypting data and protecting it from unauthorized access

Answer

Providing a virtual private network (VPN) connection

Question 3

Which of the following is not a type of host-based firewall?

Accepted Answer

Proxy server

Answer

Stateful firewall

Answer

Packet filter

Answer

Application-level gateway

Question 4

What is the fundamental goal of implementing security information and event management (SIEM) tools?

Accepted Answer

Collecting and analyzing security logs for threat detection and response

Answer

Patching vulnerabilities in operating systems

Answer

Blocking unauthorized network traffic

Answer

Encrypting sensitive data

Question 5

Which of the following is a significant advantage of utilizing digital signatures in operating system security?

Accepted Answer

Ensuring the integrity and authenticity of system files

Answer

Preventing unauthorized access to sensitive data

Answer

Detecting and blocking malicious software

Answer

Encrypting network traffic

Question 6

What is the primary objective of using a honeypot in cybersecurity?

Accepted Answer

Attracting and deceiving attackers into a decoy system to observe their tactics

Answer

Blocking unauthorized access to a network

Answer

Patching vulnerabilities in operating systems

Answer

Encrypting sensitive data

Question 7

What is the core function of a security operation center (SOC) in cybersecurity?

Accepted Answer

Monitoring, detecting, and responding to security incidents

Answer

Developing and enforcing security policies

Answer

Training employees on cybersecurity best practices

Answer

Conducting vulnerability assessments

Question 8

Which of the following is not considered a significant threat to operating systems?

Accepted Answer

Hardware failures

Answer

Malware

Answer

Social engineering

Answer

Physical attacks

Question 9

What is the primary role of a virtual private network (VPN) in cybersecurity?

Accepted Answer

Encrypting and securing data transmitted over public networks

Answer

Blocking unauthorized access to a network

Answer

Detecting and preventing malware infections

Answer

Monitoring network traffic for suspicious activities

Question 10

How effective are host-based firewalls in protecting operating systems from external attacks? Explain their limitations and suggest complementary security measures.

Accepted Answer

Host-based firewalls are effective when properly configured and monitored.

Accepted Answer

Intrusion detection systems can complement host-based firewalls to enhance protection.

Answer

Host-based firewalls provide absolute protection against external attacks when configured correctly.

Answer

Organizations with strong network firewalls don't need host-based firewalls.

Question 11

Which of the following is NOT a common benefit of installing security patches?

Accepted Answer

Enhances system performance

Answer

Remediates software vulnerabilities

Answer

Protects against known threats

Answer

Mitigates the risk of data breaches

Question 12

Which type of firewall is commonly employed to safeguard individual devices, such as personal computers or servers?

Accepted Answer

Host-based firewall

Answer

Network firewall

Answer

Application firewall

Answer

Web firewall

Question 13

What is a primary function of a security patch?

Accepted Answer

Repairs identified software weaknesses

Answer

Introduces new functionalities

Answer

Optimizes system performance

Answer

Removes malware infections

Question 14

What is the primary purpose of a host-based firewall?

Accepted Answer

Provides protection for individual hosts against unauthorized access

Answer

Regulates traffic flow across networks

Answer

Blocks access to malicious websites

Answer

Scans for and eliminates malware

Question 15

Which of the following is NOT a classification of intrusion detection systems (IDS)?

Accepted Answer

Anti-malware scanner

Answer

Host-based IDS

Answer

Network-based IDS

Answer

Signature-based IDS

Question 16

Which tool is specifically designed to monitor and analyze system logs for security-related events?

Accepted Answer

Security information and event management (SIEM) system

Answer

Log management tool

Answer

Vulnerability scanner

Answer

Packet analyzer

Question 17

In cybersecurity, when should you prioritize deploying critical security patches over recommended security patches?

Accepted Answer

When the patch addresses a serious vulnerability that could compromise system integrity or allow unauthorized access

Answer

When the patch addresses a minor vulnerability

Answer

When the patch requires a system reboot

Question 18

Which of the following is a fundamental purpose of security patches?

Accepted Answer

Remediating software vulnerabilities

Answer

Monitoring network activities

Answer

Detecting intrusions

Answer

Enforcing access rules

Question 19

Which tool is primarily used to safeguard a computer system from unauthorized access?

Accepted Answer

Host-based firewall

Answer

Intrusion detection system

Answer

Security patch

Answer

Backup software

Question 20

Which type of intrusion detection system monitors network traffic for suspicious patterns?

Accepted Answer

Network intrusion detection system

Answer

Host-based intrusion detection system

Answer

Signature-based intrusion detection system

Answer

Anomaly-based intrusion detection system

Question 21

Which OS security technique involves separating a system into trusted and untrusted domains?

Accepted Answer

Mandatory access control

Answer

Discretionary access control

Answer

Role-based access control

Answer

Attribute-based access control

Question 22

Which of the following is an essential component of a security patch?

Accepted Answer

Software update

Answer

Security advisory

Answer

Vulnerability assessment

Answer

Intrusion detection

Question 23

Which type of firewall operates at the network layer?

Accepted Answer

Packet-filtering firewall

Answer

Stateful firewall

Answer

Application-layer firewall

Answer

Web application firewall