Which of the following ports should be opened on a firewall to allow for NetBIOS communication? (Select two.)

A.
110

B.
137

C.
139

D.
143

E.
161

F.
443

Explanation:
NetBIOS provides four distinct services:
Name service for name registration and resolution (port: 137/udp)
Name service for name registration and resolution (port: 137/tcp)
Datagram distribution service for connectionless communication (port: 138/udp)
Session service for connection-oriented communication (port: 139/tcp)