Nokia 4A0-C02 問題集

質問 1：
Which of the following functions must a PE router support when participating in a VPLS service? (Choose 3)
A. MAC learning
B. Frame fragmentation
C. MSTP
D. Must discard frames with an unknown destination MAC
E. Frame forwarding
F. Frame replication
正解：A,E,F

質問 2：
On the Alcatel-Lucent 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?
A. 48
B. 8
C. 32
D. 16
E. 56
正解：C

質問 3：
What is an SLA? (Choose two)
A. An SLA is used to provide automated, real-time testing and alarming for throughput, latency, and jitter across a provider's network.
B. An SLA is a standard set of network QoS policies that a provider shares to all its customers, allowing them to better understand the treatment of traffic within the provider's network.
C. An SLA allows a customer to pre-mark traffic and ensure that traffic is treated as per the agreement within the provider's network.
D. An SLA is an agreement between a customer and a provider that dictates the treatment of customer traffic across the provider's network.
E. An SLA allows customers to control all traffic within the service provider's network by prioritizing their traffic over others as desired.
正解：C,D

質問 4：
Click the exhibit button below. A network operator has configured a network-queue policy to map forwarding classes to queues, as shown in the exhibit below. Based on the default scheduling behavior of the Alcatel-Lucent 7750 SR, in which order will packets be serviced?

A. In-profile EF packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
B. In-profile EF packets, then in-profile H2 packets, then in-profile AF packets, then out-of-profile EF packets, then out-of-profile H2 and AF packets, and then out-of-profile BE packets.
C. In-profile EF and H2 packets, then in-profile AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
D. In-profile EF, H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.
E. All in-profile packets in round-robin, then all out-of-profile packets in biased round-robin.
正解：A

質問 5：
Click the exhibit.

An Alcatel-Lucent 7750 SR is to be configured as a core router that supports VPRNs using LDP as the transport protocol. Which of the following best describes this configuration?
A. This configuration is correct and complete.
B. There is no configuration required for LDP in the core network.
C. This configuration is correct, but the interfaces must also be configured in the "configure router mpls" context.
D. This configuration is correct but Targeted-LDP is also required.
正解：A

質問 6：
How is it possible for multiple services to be carried over the same MPLS LSPs?
A. A vc-label is signaled per service.
B. Multiple SDPs must be configured and bound to the LSPs for this to be possible.
C. The vc-id is part of the data plane and maps the traffic to the appropriate service.
D. It is not possible to carry multiple services over the same MPLS LSPs.
正解：B