Firewall and IDS Implementation: A Comprehensive Guide for Cybersecurity Professionals

Question 1

Which of the following is NOT a common type of firewall?

Accepted Answer

Application-Based Firewall

Answer

Packet-Filtering Firewall

Answer

Stateful Firewall

Answer

Next-Generation Firewall (NGFW)

Question 2

What is the primary function of an Intrusion Detection System (IDS)?

Accepted Answer

To detect and alert on potentially malicious activity or unauthorized access

Answer

To manage and configure network devices

Answer

To prevent unauthorized access to a network

Answer

To provide secure remote access to a network

Question 3

Which firewall deployment option is typically used to protect a network from threats originating from the internet?

Accepted Answer

Perimeter Firewall

Answer

Virtual Firewall

Answer

Cloud-Based Firewall

Answer

Host-Based Firewall

Question 4

What is a key advantage of Stateful Firewalls compared to Packet-Filtering Firewalls?

Accepted Answer

They track the state of network connections, enabling more informed decisions about traffic flow.

Answer

They are more efficient in processing network traffic.

Answer

They offer stronger protection against spoofing attacks.

Question 5

Which of these is a best practice when configuring an IDS?

Accepted Answer

Fine-tune detection rules to reduce false positives and improve accuracy.

Answer

Deploy the IDS on every network device for comprehensive monitoring.

Answer

Configure the IDS to alert on any suspicious activity, regardless of context.

Question 6

What is the main purpose of a Network-Based Intrusion Detection System (NIDS)?

Accepted Answer

To monitor network traffic for potentially malicious patterns and suspicious activity.

Answer

To protect individual devices from malware infections.

Answer

To detect and block unauthorized access to a network.

Answer

To provide secure remote access to a network.

Question 7

What is a significant benefit of utilizing a Virtual Firewall?

Accepted Answer

They offer flexibility and scalability, allowing for easier adaptation to changing network needs.

Answer

They are always less expensive than hardware-based firewalls.

Answer

They provide a higher level of security compared to hardware-based firewalls.

Question 8

What is the key difference between a Host-Based IDS and a Network-Based IDS?

Accepted Answer

Host-Based IDS focuses on individual devices, while Network-Based IDS monitors the entire network traffic.

Answer

Network-Based IDS are more effective in detecting external attacks.

Answer

Host-Based IDS are more effective in detecting insider threats.

Question 9

What is the primary role of a Security Information and Event Management (SIEM) system in relation to firewall and IDS management?

Accepted Answer

To collect, analyze, and correlate security events from multiple sources, providing a comprehensive security view.

Answer

To automatically block suspicious network traffic.

Answer

To configure and manage firewalls and IDS.