Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 231:

  A VPLS receives a frame with the single VLAN tag 35 on the Q-in-Q SAP 1/1/1:35.*. Which of the following describes default Nokia 7750 SR behavior?

  A. The frame is dropped.

  B. The VLAN tag is removed, and the frame is transported over the network.

  C. The VLAN tag is kept, and the frame is transported over the network.

  D. The VLAN tag is kept, a VLAN of 0 is added, and the frame is transported over the network.

  Correct Answer: B

• Question 232:

  Which of the following about Type 10 opaque LSAs is TRUE?

  A. Type 10 opaque LSAs are supported by IS-IS.

  B. Type 10 opaque LSAs are flooded to all areas of the routing domain.

  C. Type 10 opaque LSAs are stored in an LSDB.

  D. Type 10 opaque LSAs are used for traffic engineering support.

  Correct Answer: D

• Question 233:

  Which ofthe following commands is used to display the databasecontaining the OSPF-TE LSAs?

  A. show router ospf opaque-database

  B. show router ospf database

  C. show router ospf opaque-Isa

  D. show router ospf te opaque

  Correct Answer: A

• Question 234:

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

  A. 0

  B. 5

  C. 10

  D. 15

  Correct Answer: B

• Question 235:

  Click the exhibit.

  

  Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?

  A. Router RA prefers the update received from router RR1.

  B. Router RA prefers the update received from router RR2.

  C. Router RA flags both updates as invalid.

  D. Router RA accepts both updates and flags them as used.

  Correct Answer: C

• Question 236:

  Which of the following about CSPF is TRUE?

  A. The tail-end router performs the CSPF calculation for an LSP.

  B. CSPF calculations are always performed on RSVP-TE based LSPs.

  C. The head-end router performs the CSPF calculation for an LSP.

  D. Each downstream router performs its own CSPF calculation for an LSP.

  Correct Answer: C

• Question 237:

  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 238:

  Click on the exhibit.

  

  An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?

  A. A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.

  B. The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.

  C. A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.

  D. The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.

  Correct Answer: D

• Question 239:

  Which of the following is a characteristic of LDP Hello messages?

  A. They are multicast to the All Hosts address.

  B. They are broadcast to the subnet broadcast address.

  C. They are multicast to the All Routers address.

  D. They are broadcast or multicast, depending on the physical media.

  Correct Answer: C

• Question 240:

  What are the ways the RID can be created on an Nokia 7750 SR router? (Choose three)

  A. From the last 32 bits of the chassis MAC address

  B. From the first 32 bits of the chassis MAC address

  C. The loopback IP address

  D. By using the command "config router ospf rid X.X.X.X"

  E. From the system IP address

  F. From the highest interface IP address

  Correct Answer: ADE