Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 161:

  Which of the following about an E-pipe terminating on a VPLS is FALSE?

  A. The VC-IDs used between the E-pipe and VPLS must match.

  B. The E-pipe must maintain a MAC FDB in order to connect to the VPLS.

  C. The service ID of the E-pipe can be different from that of the VPLS.

  D. The service MTU of the VPLS and E-pipe must match.

  Correct Answer: B

• Question 162:

  Click the exhibit.

  

  An operator at PE1 wants to analyze the traffic between CE1 and PE1 on SAP 1/1/3, On an Alcatel-Lucent 7750 SR, which of the following is NOT required as part of the configuration?

  A. A mirror source with a defined source type.

  B. A mirror source defined with an SDP destination.

  C. A mirror destination with a SAP defined.

  D. A mirror destination and a mirror source with the same service ID.

  Correct Answer: B

• Question 163:

  Which service type is needed to bridge an ATM-attached user and an Ethernet-attached user?

  A. A-pipe

  B. F-pipe

  C. C-pipe

  D. E-pipe

  Correct Answer: D

• Question 164:

  Which protocol is used to signal the service label for a Layer 3 VPRN service?

  A. L-LDP

  B. T-LDP

  C. RSVP-TE

  D. MP-BGP

  Correct Answer: D

• Question 165:

  What is the best approach of making MTUs match between a VPLS and a spoke IES in order to bring up the service?

  A. Change the service MTU of the VPLS to match the IES.

  B. Set the ip-mtu of the IES service to match the service MTU of the VPLS service.

  C. Change the MTU of the SDP attached to the VPLS to match the service MTU of the VPLS.

  D. Set the DNF flag on the IES service.

  Correct Answer: B

• Question 166:

  Click the exhibit.

  

  Based on the output shown, what is the value of the service's VC ID?

  A. 2

  B. 12

  C. 30

  D. 44

  E. 100

  F. The VC ID Cannot be determined from the output

  Correct Answer: D

• Question 167:

  On the Alcatel-Lucent 7750 SR, which of the following statements about MP-BGP used for a VPRN is TRUE?

  A. Routes from different customers with the same IPv4 address prefix are treated as equivalent by MPBGP.

  B. MP-BGP will advertise routes to other BGP sessions on the same PE without the need of policies.

  C. The multi-protocol nature of MP-BGP allows VPRN routes to be converted into IPv4 routes in the provider core network.

  D. MP-BGP is an enhanced version of BGP that can carry customer route prefixes for multiple VPRNs.

  Correct Answer: D

• Question 168:

  A service has a null encapsulated SAP and a vc-type vlan' SDP. What happens when the SAP receives an untagged Ethernet frame?

  A. The frame is dropped.

  B. The service ID is added as the provider VLAN tag.

  C. A VLAN tag of 0 is added as the provider VLAN tag.

  D. The frame is forwarded with no provider VLAN tag.

  Correct Answer: C

• Question 169:

  Which of the following about SDPs is FALSE?

  A. All services bound to the same SDP must be the same service type.

  B. All services bound to the same SDP will have the same transport encapsulation.

  C. Any operation on an SDP will affect all services bound to that SDP.

  D. An SDP is used to direct traffic for a service from one router to another.

  Correct Answer: A

• Question 170:

  Which of the following best describes the label stack for a packet in the VPRN context?

  A. An outer label and a transport label.

  B. An inner label and a service label.

  C. A transport label and a service label.

  D. An MPLS transport label

  Correct Answer: C