H31-321-ENU exam

Which of the following are true about the NE ID of an ASON NE?
A . Each NE ID must be unique in an ASON domain.
B . The NE ID and IP address of an NE must be in different network segments.
C . NE IDs must be set before the ASON feature is enabled. After the NE ID of an NE is configured, the NE will not warm reset.
D . NE IDs, NE IDs, and NE IP addresses are independent from each other.
E . NE IDs and IP addresses must be in the same format. An NE ID cannot be 0.0.0.0,1.2.3.4, or 255.255.255.255.

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Answer: ABDE

When preparing for engineering information, you need to check networking information, such as the network diagram, network protection type, NE IP addresses, NE IDs, NE name allocation table, board information, fiber and cable connections, service routes and timeslot allocation, clock tracing diagram, and orderwire diagram.
A . TRUE
B . FALSE

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Answer: A

On a network where MSP rings and SNCP rings share fiber resources, if Assigned by VC~4 is selected, you need to set holdoff time for SNCP services.
A . TRUE
B . FALSE

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Answer: B

Which of the following about the SSM protocol are true?
A . After the SSM protocol is disabled, the clock network can be unidirectional but cannot adopt a ring topology.
B . After the standard SSM protocol is enabled, the clock network can be bidirectional but cannot adopt a ring topology.
C . After the extended SSM protocol is enabled, the clock network can be bidirectional and adopt a ring topology, which can be intersecting or tangent with other networks.
D . The SSM protocol has little to do with clock networks.

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Answer: AB

Latency of store-and-forward equipment is the difference between the time the first bit of a data frame enters the equipment and the time the first bit exits the equipment.
A . TRUE
B . FALSE

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Answer: B

Which of the following bytes cannot be processed in pass-through mode on an ADM site using OptiX NG-SDH equipment?
A . K1
B . K2
C . A1
D . A2

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Answer: CD

What are the characteristics of a trail?
A . A trail is a end-to-end connection.
B . A trail has a source and a sink.
C . A trail may pass through many intermediate nodes.
D . A trail must be bidirectional.

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Answer: ABC

You need to specify the length of data frames before using a data analyzer to test throughput.

What is the length of a standard Ethernet frame?
A . 64 bytes
B . 128 bytes
C . 1518 bytes
D . 1544 bytes

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Answer: ABC

According to the extended SSM protocol, clock switching is performed firstly according to clock priorities, and secondly according to clock quality levels.
A . TRUE
B . FALSE

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Answer: B

Two SNCP rings are intersected.

Which of the following statements is true about inter-ring service configuration?
A . Configure one unidirectional SNCP service pair on each intersecting node.
B . Configure two unidirectional SNCP service pairs on each intersecting node.
C . Configure four unidirectional SNCP service pairs on each intersecting node.
D . Do not configure any SNCP protection group on each intersecting node.

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Answer: C