Refer to the exhibit. A user authenticates to the NAS, which communicates to the VACACS+ server authentication. The TACACS+ SERVER Then accesses the Active Directory Server through the ASA firewall to validate the user credentials.
Which protocol-port pair must be allowed access through the ASA firewall?
A. SMB over TCP 455
B. DNS over UDP 53
C. LDAP over UDP 389
D. global catalog over UDP 3268
E. TACACS+ over TCP 49
F. DNS over TCP 53
