Refer to the exhibit.

Which two statements about the show command output are true? (Choose two.)

A.
T1 0/2/1 terminates Q.921 signaling to a Cisco Unified Communications Manager server.

B.
T1 0/0/0 terminates Q.921 signaling on the gateway.

C.
T1 0/0/0 terminates SIP Signaling to a Cisco Unified Communications Manager server.

D.
T1 0/0/0 terminates Q.931 signaling to a Cisco Unified Communications Manager server.

E.
T1 0/2/1 terminates Q.931 signaling on the gateway.

Explanation:
As you can see the T1 0/0/0:23 interface is active in layer 1,2(multi frame established) & 3,it means
Q.931 signaling terminates at gateway and using backhauled technique q931 messages are going to
CUCM server.
But in case of T1 0/2/1 port multi frames are not established in layer 2.So, it’s not configured
properly & doesn’t backhauling q931 messages to CUCM