CSIA Final Exam Version 1 – Practice Questions and
Answers 2026
1. What is the primary purpose of a firewall?
Answer: To monitor and control incoming and outgoing network traffic based on predefined
security rules.
2. What is a DMZ (Demilitarized Zone)?
Answer: A network segment placed between a trusted internal network and an untrusted external
network to host public-facing services while protecting the internal network.
3. What is the difference between a NIDS and a NIPS?
Answer:
NIDS (Network Intrusion Detection System): Detects and alerts on suspicious activity.
NIPS (Network Intrusion Prevention System): Detects and actively blocks malicious
activity.
4. What is the default port used by HTTPS?
Answer: TCP Port 443.
5. What is the purpose of vulnerability scanning?
Answer: To identify security weaknesses and misconfigurations that attackers could exploit.
6. What is a Command and Control (C2) server?
Answer: A server used by attackers to communicate with and control compromised systems.
Answers 2026
1. What is the primary purpose of a firewall?
Answer: To monitor and control incoming and outgoing network traffic based on predefined
security rules.
2. What is a DMZ (Demilitarized Zone)?
Answer: A network segment placed between a trusted internal network and an untrusted external
network to host public-facing services while protecting the internal network.
3. What is the difference between a NIDS and a NIPS?
Answer:
NIDS (Network Intrusion Detection System): Detects and alerts on suspicious activity.
NIPS (Network Intrusion Prevention System): Detects and actively blocks malicious
activity.
4. What is the default port used by HTTPS?
Answer: TCP Port 443.
5. What is the purpose of vulnerability scanning?
Answer: To identify security weaknesses and misconfigurations that attackers could exploit.
6. What is a Command and Control (C2) server?
Answer: A server used by attackers to communicate with and control compromised systems.
