CompTIA Network+ (N10-006) — Question 87

A technician has finished configuring AAA on a new network device. However, the technician is unable to log into the device with LDAP credentials but is able to do so with a local user account.
Which of the following is the MOST likely reason for the problem?

Answer options

• A. Username is misspelled is the device configuration file
• B. IDS is blocking RADIUS
• C. Shared secret key is mismatched
• D. Group policy has not propagated to the device

Correct answer: C

Explanation

The most likely reason for the inability to log in with LDAP credentials is a mismatch in the shared secret key, which is crucial for the authentication process. The other options, such as a misspelled username or issues with IDS and group policy, would not directly affect the shared secret key's role in authentication.