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Assessment

1. What is the main goal of network hardening? A. Make every service public B. Remove all monitoring C. Reduce unnecessary risk while supporting intended communication D. Avoid documentation

2. What should come early in a network hardening effort? A. Inventory assets, owners, services, and connections B. Delete all network diagrams C. Disable change control D. Assume every device is already secure

3. What does reducing attack surface usually involve? A. Opening more unused ports B. Adding default accounts C. Exposing management interfaces broadly D. Removing or restricting unnecessary services, paths, and exposure

4. Why is segmentation useful? A. It makes ownership impossible B. It limits unnecessary communication and reduces blast radius C. It removes the need for monitoring D. It makes every system trust every other system

5. What is a good practice for administrative access? A. Use shared administrator accounts everywhere B. Expose management interfaces to the internet by default C. Use least privilege, MFA, controlled access paths, and monitoring D. Never log administrator activity

6. Why are baselines and change control important? A. They make testing unnecessary B. They guarantee no outage can ever happen C. They replace backups D. They define expected configuration and support safer, reversible changes

7. What can monitoring and validation help detect? A. Drift, unexpected exposure, suspicious access, and failed changes B. Only spelling mistakes C. Nothing useful D. Reasons to stop reviewing controls

8. Which is the best network hardening operating routine? A. Guess, change production, and hope B. Inventory, reduce exposure, segment, control access, patch, monitor, validate, and improve C. Disable logs and remove backups D. Make all rules permanent and never review them