Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 231:

  Click the exhibit.

  

  PE1 and PE2 are Alcatel-Lucent 7750 SRs. Which of the following is the missing configuration required on PE2 to complete the mirror?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 232:

  Click the exhibit.

  

  This is output from router R4. Service 333 is a VPLS. Why does peer 10.10.10.1 not have an EgrLbl?

  A. The SDP to 10.10.10.1 on router R4 is shutdown.

  B. Router R4 has not sent a label to router R1 (10.10.10.1) yet.

  C. 10.10.10.1 has a different service MTU set.

  D. 10.10.10.1 has not sent a label to router R4 yet.

  Correct Answer: D

• Question 233:

  Click the exhibit.

  

  E-pipe 100 is using an SDP (4) with an LSP that uses the path shown (PE1-PE2-PE3- PE4). Which of the following is the expected output from the OAM command?

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 234:

  Which of the following about IES is TRUE?

  A. An IES requires a spoke SDP.

  B. A virtual route table must be configured for an IES service.

  C. An IES service must use static routes to communicate with customer networks.

  D. An IES must have at least one SAP defined.

  Correct Answer: D

• Question 235:

  Which of the following statements is FALSE regarding 6VPE?

  A. 6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 information over an IPv4 MPLS infrastructure.

  B. Customers connected to 6VPE could run native IPv6 or IPv4.

  C. On the PE router, the next hop for a VPN IPv6 address is an IPv6 address, regardless of the nature of the network between the PEs.

  D. 6VPE requires an IPv6-aware MPLS core.

  E. Both C and D are false.

  F. All of the above statements are true.

  Correct Answer: D

• Question 236:

  Which of the following about VPLS MAC learning is FALSE?

  A. The PE routers of the service are responsible for learning MAC addresses.

  B. Flooding ensures that all PEs in a fully-meshed VPLS will learn the source address of all traffic.

  C. MAC learning reduces flooding of frames with previously learned addresses.

  D. Multiple VPLSes on the same PE share the same MAC FDB.

  Correct Answer: D

• Question 237:

  Which of the following about VPLS MAC learning is TRUE?

  A. Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.

  B. A PE keeps a single FDB for all VPLSes it has.

  C. Frames received on a SAP that are broadcast, multicast or unknown are flooded.

  D. The FDB only stores the MAC addresses of remote sites.

  Correct Answer: C

• Question 238:

  Which utility on the Alcatel-Lucent 7750 SR can be used to investigate an MPLS path?

  A. Isp-trace

  B. Idp-trace

  C. Sdp-ping

  D. Svc-ping

  E. Ping

  Correct Answer: A

• Question 239:

  Which of the following about the components of a distributed service on the Alcatel-Lucent 7750 SR is TRUE?

  

  A. A SAP can only be used by one service on a router.

  B. A dedicated SDP needs to be created for each service.

  C. A service is created on each site before the customer is created.

  D. SAPs must be created before a service is created.

  Correct Answer: A

• Question 240:

  By default, what does an Alcatel-Lucent 7750 SR do to support VPLS services for different customers?

  A. Dedicates a separate port for each customer.

  B. Performs ARP look-ups for each service.

  C. Maintains a different IP routing table for each service.

  D. Maintains a different MAC Forwarding Database for each service.

  Correct Answer: D