Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 751:

  Which of the following commands may only be used on the head end router to verify the status of an LSP named "LSP 1"? (Choose two)

  A. show router mpls Isp "LSP 1" originate

  B. show router mpls Isp "LSP 1" path detail

  C. show router rsvp session originate

  D. show router rsvp session "LSP 1"

  Correct Answer: BC

• Question 752:

  Which of the following is a feature of a black-hole static route?

  A. It discards packets based on the source address.

  B. It discards packets that match the destination prefix.

  C. It returns ICMP unreachable messages.

  D. It discards packets based on the egress port.

  Correct Answer: B

• Question 753:

  Which of the following statements are true? Choose two answers.

  A. Route redistribution is only needed if Internet access is a requirement.

  B. Route filtering is the process of attaching data path filters to router interfaces.

  C. Route filtering involves deciding whether to permit or deny certain routing updates from being accepted into, or distributed out of, the route-selection process.

  D. Redistribution is needed for exchanging routes from one routing protocol to another.

  E. OSPF routers that are redistributing routes must be configured as ABRs.

  Correct Answer: CD

• Question 754:

  Which of the following devices receives labeled packets from the MPLS domain, removes the MPLS header, and forwards unlabeled packets outside the MPLS domain?

  A. P router

  B. LSR

  C. eLER

  D. iLER

  Correct Answer: C

• Question 755:

  Click on the exhibit.

  

  Router R1 learns the network 192.168.3.0/24 from IS-IS. Given the OSPF configuration shown, why isn't the 192.168.3.0/24 route in router R3's route table?

  A. The route policy should be applied as an import policy.

  B. The route policy should say "from protocol isis" instead of "from protocol direct".

  C. The ASBR configuration should be removed.

  D. The interface between routers R1 and R3 must be in OSPF area 0.

  Correct Answer: B

• Question 756:

  Which of the following is described by the following statement? An LSR propagates a label mapping only for a FEC for which it has a label mapping for the FEC next-hop.

  A. Independent control mode

  B. Ordered control mode

  C. Liberal label retention

  D. Conservative label retention

  E. Downstream on demand.

  Correct Answer: B

• Question 757:

  Click on the exhibit.

  

  If router R2 re-distributes the IS-IS route 192.168.3.0/24 into OSPF, router R3 will receive two routes to 192.168.3.0/24. Assume that all IS-IS routers are L1/L2 capable and are in the same area.

  Which of the following is TRUE?

  A. Router R3 will install the OSPF route in its routing table.

  B. Router R3 will install the IS-IS route in its routing table

  C. Router R3 will install an OSPF route and an IS-IS route in its routing table.

  D. There is not enough information to answer the question.

  Correct Answer: B

• Question 758:

  An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute a loopback prefix into OSPFv3.

  What type of LSA advertises the prefix to the other OSPFv3 routers in the same area?

  A. Router LSA

  B. AS External LSA

  C. Intra-Area Prefix LSA

  D. Inter-Area Prefix LSA

  E. Network LSA

  Correct Answer: B

• Question 759:

  Link-state PDUs include an age field. Which of the following is FALSE?

  A. When link-state information reaches the maximum age on a router, the router will flood that information to its neighbors.

  B. When a router detects that any of its link-state information has reached the maximum age, it will request a new update from the source router.

  C. Aging helps ensure that links, which are no longer part of the topology, will eventually get removed from the LSDB.

  D. The age value is updated as the information is flooded throughout the network and when it is in the LSDB.

  Correct Answer: B

• Question 760:

  Which of the following are the default settings for the Alcatel-Lucent 7750 SR when using LDP?

  A. Ordered control mode; downstream on demand.

  B. Ordered control mode; downstream unsolicited.

  C. Independent control mode; downstream on demand.

  D. Independent control mode; downstream unsolicited.

  Correct Answer: B