Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 171:

  Which of the following regarding label population is TRUE?

  A. Selected labels from the FIB are populated to the LFIB.

  B. Selected labels from the RIB are populated to the FIB.

  C. Selected labels from the LIB are populated to the FIB.

  D. Selected labels from the LIB are populated to the LFIB.

  Correct Answer: D

• Question 172:

  Graceful Restart is supported by what IGPs?

  A. RIPv1 and RIPv2

  B. OSPF

  C. IS-IS

  D. BGP

  Correct Answer: BC

• Question 173:

  Which of the following prefix-lists is the most specific match for prefix 172.31.2.1/24?

  A. Prefix 172.16.0.0/12 longer.

  B. Prefix 172.31.0.0/22 longer.

  C. Prefix 172.31.0.0/23 longer.

  D. Prefix 172.31.0.0/24 exact.

  Correct Answer: B

• Question 174:

  By default, how does a VPLS handle a tagged frame received at the ingress of a null SAP on an Nokia 7750 SR?

  A. The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.

  B. The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

  C. The FCS is verified and removed from the frame. The VLAN tag is kept and transported over the network.

  D. The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

  Correct Answer: C

• Question 175:

  Click the exhibit button.

  

  In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?

  A. Router R1 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.

  B. Router R3 generates a Type 4 LSA that is flooded to areas 0, 1, and 2.

  C. Router R3 generates a Type 4 LSA that is flooded to areas 0 and 2.

  D. Router R3 generates a Type 4 LSA that is flooded to area 0, and router R6 generates a Type 4 LSA that is flooded to area 2.

  Correct Answer: D

• Question 176:

  Which of the following regarding MPLS encapsulation for VPRN services is TRUE?

  A. The customer's Layer 3 header is removed at the iLER.

  B. The customer's Layer 2 header is removed at the iLER.

  C. The customer's Layer 3 header is removed at the eLER.

  D. The customer's Layer 2 header is removed at the eLER.

  Correct Answer: A

• Question 177:

  Click the exhibit.

  

  An update travels from AS 137000 to AS 135000, traversing both 32-bit and 16-bit AS Paths.

  What AS Path is seen by AS 200?

  A. 140000 137000

  B. 137000 140000

  C. 23456 23456

  D. 200 140000 137000

  Correct Answer: C

• Question 178:

  What is the default preference value for a static route in the Nokia 7750 SR?

  A. 0

  B. 5

  C. 10

  D. 15

  Correct Answer: B

• Question 179:

  Click the exhibit.

  

  Considering that both routers C and D are advertising the eBGP learned prefix 10.5.0.0/16 into ISP X, which of the following best describes the route advertisement within ISP X?

  A. Router C sends the update to routers E and F only.

  B. Router C sends the update to routers D, E and F.

  C. Router C sends the update to routers A, B, E and F.

  D. Router C sends the update to routers A, B, D, E and F.

  Correct Answer: D

• Question 180:

  Which of the following devices inspects the MPLS header in the received packet, and exchanges it for a new MPLS header?

  A. iLER

  B. LER

  C. LSR

  D. PE

  E. eLER

  Correct Answer: C