CompTIA Network+ (N10-009) — Question 399

A network technician is attempting to harden a commercial switch that was recently purchased. Which of the following hardening techniques best mitigates the use of publicly available information?

Answer options

• A. Changing the default password
• B. Blocking inbound SSH connections
• C. Removing the gateway from the network configuration
• D. Restricting physical access to the switch

Correct answer: A

Explanation

Changing the default password is crucial as it prevents unauthorized access that can exploit known default credentials. Blocking inbound SSH connections does not mitigate risks from publicly available information, as it mainly affects remote access. Removing the gateway does not directly relate to hardening against publicly available information. Restricting physical access helps secure the hardware, but does not address information exposure risks.