2. Networking

Network Security — Quiz

Test your understanding of network security with 5 practice questions.

Practice Questions

Question 1

Which feature distinguishes a Next-Generation Firewall (NGFW) from a traditional stateful firewall?

Question 2

In which scenario would a Host-based Intrusion Prevention System (HIPS) be more effective than a Network-based IPS (NIPS)?

Question 3

An IDS reports 200 true positives, 50 false positives, 30 false negatives, and 720 true negatives. What is its False Positive Rate (FPR)? Show your calculation.

Question 4

Which IPsec mode encapsulates the entire original IP packet within a new IP header?

Question 5

An IPsec tunnel adds an extra 50-byte ESP header to each packet. If the original payload is 1000 bytes, what is the percentage overhead introduced by ESP? Show your calculation.