Certified Ethical Hacker (CEH v11) — Question 131

Which of the following protocols can be used to secure an LDAP service against anonymous queries?

Answer options

• A. NTLM
• B. RADIUS
• C. WPA
• D. SSO

Correct answer: A

Explanation

NTLM is a protocol that provides authentication and can be used to secure LDAP services from anonymous access. The other options, RADIUS, WPA, and SSO, serve different purposes such as network access control, wireless security, and single sign-on respectively, but do not specifically secure LDAP against anonymous queries.