Certified Information Systems Auditor (CISA) — Question 781

Which type of device sits on the perimeter of a corporate or home network, where it obtains a public IP address and then generates private IP addresses internally?

Answer options

• A. Gateway
• B. Switch
• C. Intrusion prevention system (IPS)
• D. Router

Correct answer: D

Explanation

The correct answer is D, Router, because it is designed to connect different networks and manage IP address allocation. A Gateway serves as a point of access but does not specifically generate private IPs, a Switch operates within a local network without handling IP address assignments, and an Intrusion Prevention System (IPS) focuses on monitoring and protecting the network rather than managing IP addresses.