Nokia 4A0-C01 問題集

質問 1：
An Alcatel -Lucent 7750 SR receives a route from an IS-IS LSP with internal reachability, and receives the same route from an OSPF Type 5 LSA.
If all protocol preferences are default, which route will be installed in the route table?
A. The route learned from OSPF will be installed.
B. Both routes will be installed.
C. There is not enough information to answer the question
D. The route learned from IS-IS will be installed.
正解：D

質問 2：
Click on the exhibit.

Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.
How many OSPF Type 5 LSAs will router R1 receive from router R2?
A. 2
B. 3
C. 4
D. 1
正解：C

質問 3：
On Alcatel-Lucent 7750 SR OS, routing information between the CE and PE can be exchanged using the following methods.
A. ISIS, RIP, OSPF, static routes
B. BGP, RIP, OSPF, static routes, OSPF3
C. ISIS, RIP, OSPF, static routes, OSPF3
D. BGP, ISIS, RIP, OSPF, static routes
正解：B

質問 4：
Click on the exhibit.

A service provider is deploying a 6 over 4 tunnel to connect a customer's corporate IPv6 network to all devices at the branch office as shown in the exhibit.
Which command is used to create the route to the branch office network on PE1?
A. Configure router static-route 2001:DB8:1:201:764 indirect 2001:DB8:1:200::2
B. Configure router static-route 2001:DB8:1:201::/64 indirect 10.10.10.4
C. Configure router static-route 2001:DB8:1:200:756 indirect 2001:DB8:1:200::2
D. Configure router static-route 2001:DB8:1:200::/56 indirect 10.10.10.4
正解：D

質問 5：
Click on the exhibit.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas.
Which of the following regarding LSAs is TRUE?
A. Only routers R2 and R3 receive Type 5 LSAs advertised by router R1.
B. Router R7 will receive Type 5 LSAs advertised by router R1.
C. Router R3 will advertise Type 7 LSAs to Area 0 and Area 2.
D. Router R2 will receive Type 5 and Type 7 LSAs.
正解：B

質問 6：
A VPLS receives a frame with the single VLAN tag 35 on the Q-in-Q SAP 1/1/1:35.*.
Which of the following describes default Alcatel-Lucent 7750 SR behavior?
A. The VLAN tag is removed, and the frame is transported over the network.
B. The VLAN tag is kept, a VLAN of 0 is added, and the frame is transported over the network.
C. The VLAN tag is kept, and the frame is transported over the network.
D. The frame is dropped.
正解：A

質問 7：
Click the exhibit button.

Router 2 advertises the network 192.168.3.0/24 to router R1 via IS-IS.
How can router R1 ensure that it discards the route?
A. Use a prefix list on router R1 to discard all ingress IS-IS routes.
B. Use an import policy and a prefix list on router R1.
C. Use an export policy and prefix list on router R1.
D. This is not possible because IS-IS cannot use import policies.
正解：D

質問 8：
Which of the following statements is TRUE concerning a VPRN data plane flow?
A. All of the above statements are true.
B. A data packet will receive a service label at the CE and a transport label at the ingress PE.
C. At the egress PE, the transport label will be popped and the data packet forwarded with the service label.
D. A data packet intended for a remote CE will have its service label swapped at each P router along the path towards the egress PE.
E. All of the above statements are false.
F. The service label is popped by the remote CE. The unlabeled packet is forwarded based on the longest match lookup algorithm in the VRF.
正解：E