Nokia Nokia Certifications 4A0-104 Questions & Answers

• Question 271:

  Which of the following about route distinguishers on the Nokia 7750 SR is FALSE?

  A. Route distinguishers are contained in VPN-IPv4 prefixes.

  B. Route distinguishers allow the same IP prefix to be used for more than one destination in a single VPRN.

  C. Route distinguishers allow MP-BGP to manage multiple routes for the same IP prefix.

  D. Route distinguishers are only used by the PE routes.

  Correct Answer: B

• Question 272:

  Which of the following about VPRN VRF tables is FALSE?

  A. Each VRF table contains routes for a single VPRN.

  B. Route targets are used to determine if a prefix belongs to a VRF.

  C. Routes in the VRF table are advertised to the core routers.

  D. VPN labels identify which VRF table should be used for a packet.

  Correct Answer: C

• Question 273:

  A CE is connected to an IES interface. Which of the following is TRUE?

  A. The CE must be an IGP peer of the IES.

  B. The CE must be on the same subnet as the IES.

  C. The CE must use an E-pipe to connect to the IES.

  D. The CE must fragment any frames that are too large for the IES.

  Correct Answer: B

• Question 274:

  Which of the following about VPRN route targets is FALSE?

  A. Route targets are carried in MP-BGP updates.

  B. Route targets identify the VRF that a VPN-IPv4 prefix is associated with.

  C. Route targets are communicated between PEs that are part of a specific VPRN.

  D. Route targets identify the egress SAP of a service towards a CE.

  Correct Answer: D

• Question 275:

  Which of the following is a benefit of VPRN as compared to VPLS?

  A. Service providers can apply QoS, ingress/egress traffic shaping and policing on a per service basis.

  B. Different customers with overlapping address space can be accommodated.

  C. There is a clear demarcation of customer and service provider networks.

  D. Customers can connect to the same service using different subnets.

  Correct Answer: D

• Question 276:

  Click the exhibit.

  

  This output is from PE router R1. Based on the output about VPRN 100, how many prefixes has router R1 learned from CE router R5?

  A. 0

  B. 2

  C. 3

  D. 6

  Correct Answer: B

• Question 277:

  Which of the following about IES is FALSE?

  A. An IES provides a Layer 3 interface to a customer.

  B. A virtual routing/forwarding table is created per IES service.

  C. An IES supports QoS.

  D. An IES interface's IP address, if bound to a port, will appear in the routing table.

  Correct Answer: B

• Question 278:

  Which of the following about the label stack of a VPRN is FALSE?

  A. The service label is swapped for a transport label during transport.

  B. The transport label is used to forward packets between PEs.

  C. The service label is used to identify which VPRN a packet belongs to.

  D. Labels are initially added at the ingress PE.

  Correct Answer: A

• Question 279:

  Click the exhibit.

  

  Which tool produced this output?

  A. mac-trace

  B. svc-ping

  C. lsp-trace

  D. traceroute

  Correct Answer: C

• Question 280:

  Click the exhibit.

  

  An operator at PE1 wants to analyze the traffic between CE1 and PE1 on SAP 1/1/3. On a Nokia 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