You work as the security administrator at Certpaper .com. The Certpaper .com network must be
configured to allow LDAP (Lightweight Directory Access Protocol) traffic.
Which ports must you open on the firewall to allow LDAP traffic?

A.
Open ports 389 and 139

B.
Open ports 389 and 636

C.
Open ports 636 and 137

D.
Open ports 137 and 139

Explanation:

The ‘well known’ LDAP ports are 389 for LDAP and 636 for LDAP SSL.