From the screenshot of the network device in a maintenance audit, which change should the client company make?

• A. Remove any identifying numbers, names, or version information
• B. The banner should include the Cisco tech support contact information as well
• C. The banner should have more detail on the version numbers for the network equipment
• D. The banner should not state \"only authorized IT personnel may proceed\"

Answer: (A)

Disclosing fingerprint details in a device banner creates a security risk because it lets an attacker identify the exact model or software version and tailor exploits to that target. The best change is to remove any identifying numbers, names, or version information from the banner. By stripping these details, the banner no longer aids someone trying to fingerprint the device or select a specific vulnerability to attack, which is especially important during maintenance audits when screenshots can capture the banner.

Including vendor support contact information can be misused in social engineering; revealing more detailed version numbers makes fingerprinting easier; and while a banner stating that only authorized IT personnel may proceed is common, it doesn’t address the critical risk of leaking system fingerprints. Keeping banners generic minimizes information leakage while still serving a legitimate login prompt.