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QUESTION 50
What protection method is used in 4F MS-SPRing networks?
A. Each fiber has half of its capacity reserved for protection.
B. Two fibers carry their full capacities while the other two fibers are reserved for protection.
C. The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.
D. The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 51
If node 2 is accepting line timing from node 1, node 2 will send _____ to node 1 as its SSM messge.
A. AMI
B. DUS
C. ESF
D. PRS
E. SMC
F. B8ZS

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 52
On an ONS 15454 node you can tunnel a(n) _____.
A. SDH circuit over a SONET network delivering it as an SDH signal
B. SDH circuit over a SONET network delivering it as a SONET signal
C. SONET circuit over an SDH network delivering it as an SDH signal
D. SONET circuit over an SDH network delivering it as a SONET signal

Correct Answer: A Section: (none) Explanation
Explanation/Reference:
QUESTION 53
A VC-4-4c consists of _____.
A. an STM-16
B. any four VC-4s
C. four contiguous VC-4s
D. four contiguous STM-4s
E. two groupings of four VC-4s

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 54
How is SNCP and MS-SPRing traffic rerouted during a protection switch when a complete fiber cable cut occurs?
A. SNCP traffic is switched from the first node that recieves the AIS. MS-SPRing traffic is rerouted from the first in the ring.
B. SNCP traffic is selected at the destination node in the ring. MS-SPRing is rerouted from the originating node in the ring.
C. SNCP traffic is rerouted from the originating node in the ring. MS-SPRing traffic is rerouted from the originating node in the ring.
D. SNCP traffic is selected at the destination node in the ring. MS-SPRing traffic is rerouted from the last reachable node in the ring.

Correct Answer: D Section: (none) Explanation
Explanation/Reference:
QUESTION 55
Which two can be transported in one AU-4? (Choose two.)
A. 3 E3
B. 4 E4
C. 64 E1
D. 21 E1 and 2 E3
E. 42 E1 and 2 E3

Correct Answer: AD Section: (none) Explanation
Explanation/Reference:
QUESTION 56
Which timing mode is appropriate for an SDH NE that is adjacent to an SDH NE Bits-1 timing?
A. DUS
B. line timing
C. loop timing
D. internal timing
E. through timing

Correct Answer: B Section: (none) Explanation
Explanation/Reference:
QUESTION 57
In order to avoid misconnections due to a failed node in an MS-SPRing, Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?
A. bridging
B. switching
C. squelching
D. nodal bypass
E. node failure insertion

Correct Answer: C Section: (none) Explanation
Explanation/Reference:
QUESTION 58
What are two major differences between MS-SPRing and SNCP? (Choose two.)
A. In an MS-SPRing, all paths are protected.
B. MS-SPRing is always a high-order protection.
C. A low order circuit cannot be protected by an MS-SPRing.
D. There is no theoretical limit in the number of nodes in an SNCP ring.

Correct Answer: BD Section: (none) Explanation
Explanation/Reference:
QUESTION 59
Which is a legitimate bandwidth matched pair?
A. DS-1; E1
B. DS-1; STM-1
C. OC-3; STM-1
D. STS-1; STM-1
E. OC-192; STM-192

Correct Answer: C Section: (none) Explanation
Explanation/Reference:

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