Which port must be open on a firewall, to allow a DNS server to receive queries? (Enter
only the port number).
A.
55
B.
53
C.
51
D.
52
Which port must be open on a firewall, to allow a DNS server to receive queries? (Enter
only the port number).
Which port must be open on a firewall, to allow a DNS server to receive queries? (Enter
only the port number).
A.
55
B.
53
C.
51
D.
52