4A0-C02問題集、Nokia実際の試験問題

質問 1

Click the exhibit.

AS 65550 owns the CIDR block 10.64.0.0/12. Router R4 advertises the aggregate 10.64.0.0/12 to AS65540. Which of the following is TRUE regarding the aggregate route advertisement?

A. The aggregator attribute will be present, and the atomic aggregate flag will be set.

B. The aggregator attribute will be present, and the atomic aggregate flag will not be set.

C. The aggregator attribute will not be present, and the atomic aggregate flag will not be set.

D. The aggregator attribute will not be present, and the atomic aggregate flag will be set.

正解: B

質問 2

Click on the exhibit below.

A new router named PE-D is to be directly connected to PE-C and is required to be added to the existing VPLS 300. The design requires the least amount of signaling, the least amount of configuration changes for existing sites and the new site has to have access to all existing sites. How should the new site be added to VPLS 300?

A. Configure a mesh-sdp between PE-C and PE-D

B. Configure a mesh-sdp between all existing PE routers and the new PE router

C. It is not possible to meet the design requirements.

D. Configure a spoke-sdp between PE-C and PE-D.

正解: D

質問 3

In which of the following scenarios is the egress port scheduler useful? (Choose two)

A. A commercial builder has requested numerous dot1Q epipes, VPRNs, and VPLS services to a business park and is only paying up to a maximum 200Mbps.

B. A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are being dropped on ingress.

C. A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are not being dropped on ingress.

D. An equipment manufacturer has requested a NULL epipe service that will transparently pass dot1Q between the new location and national headquarters.

正解: A,C

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 and H2 packets, then in-profile 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 packets, then in-profile H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

D. All in-profile packets in round-robin, then all out-of-profile packets in biased round-robin.

E. In-profile EF, H2 and AF packets, then out-of-profile H2, AF and BE packets in biased round-robin.

正解: C

質問 5

Which of the following about inter-AS model A VPRN is FALSE?

A. It uses conventional eBGP to distribute unlabeled IPv4 routes between ASBR routers in different autonomous systems.

B. It is the most scalable of the Inter-AS models.

C. It requires the configuration of back-to-back VRFs between ASBR routers in different autonomous systems

D. Most routers that support VPRN functionality support model A by default.

正解: B

質問 6

The "discard-unknown" command has been enabled at the VPLS level. Which of the following statements is true? (Choose 2)

A. If the unicastSA has not been learned in the FDB, the frame will be dropped.

B. If the unicast DA has not been learned in the FDB, the frame will be dropped.

C. Broadcast traffic will be flooded.

D. Broadcast traffic will be dropped.

E. All traffic will be dropped, including multicast and broadcast.

正解: B,C

質問 7

Click the exhibit.

Which of the following best describes the output?

A. The AS-Path is not present because VPN-IPv4 routes do not propagate the IPv4 AS-Path BGP attribute.

B. The AS-Path is not present because a policy is configured on CE1 to set it to null.

C. The AS-Path is not present because a policy is configured on PE1 to set it to null.

D. The AS-Path is not present because a policy is configured on PE2 to set it to null.

正解: C

質問 8

Click the exhibit.

For the inter-AS model B VPRN, which of the following is FALSE when CE2 sends an IP packet to 192.168.1.1?

A. ASBR1 forwards the IP packet with two labels to PEL

B. PE2 pushes one label on the IP packet and forwards it to ASBR2.

C. ASBR2 forwards the IP packet with one label to ASBR1.

D. PE1 forwards an unlabeled IP packet to CE1.

正解: B

質問 9

The following VPLS services have been configured. Which of the following statements is TRUE?

A. All frames with more than one VLAN tag will be dropped.

B. A frame with an outer VLAN tag of 100 will be forwarded to VPLS 2.

C. All untagged frames will be dropped.

D. A frame with an outer VLAN tag of 200 and inner VLAN tag of 300 will be forwarded to VPLS 3.

E. A frame with a single VLAN tag of 500 will be forwarded to VPLS 1.

正解: B

Nokia SRA Composite - 4A0-C02 模擬練習