1. Extension of control information from one node to another node is called?
(A) Transmission
(B) Signaling
(C) Multiplexing
(D) None
2. One of the following is control information?
(A) Loop open
(B) All of these
(C) Dial Tone
(D) Loop Close
3. Signaling between user and serving node is called?
(A) Inter-user signaling
(B) Nodal signaling
(C) Exchange signaling
(D) Subscriber signaling
4. The objective of signaling is?
(A) Manage link resources
(B) Both a & b
(C) Send address
(D) None
5. Off-hook signal is?
(A) Line information
(B) Both a & b
(C) Inter nodal information
(D) Supervisory information
6. Over the local copper line supervisory?
(A) Loop conditions
(B) DC Volt
(C) AC Volt
(D) None
7. Pushing a key on the DTMF dial selects?
(A) 6 Frequencies
(B) One pair of Tones
(C) Both a & b
(D) 2 Frequencies
8. SS7 node address consists of?
(A) 14
(B) 10
(C) 15
(D) 30
9. Number of push buttons on a digital telephone set are?
(A) 12
(B) 10
(C) 14
(D) 15
10. Checksum has binary bits?
(A) 8
(B) 16
(C) 32
(D) 4