Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 111:

  If an LSP needs to use an admin group, which of the following configurations is NOT required on the Nokia 7750 SR?

  A. Assign an admin group to a MPLS interface.

  B. Configure CSPF on the LSP.

  C. Configure at least one strict hop on the LSP path.

  D. Configure an "include" or "exclude" statement on the LSP path.

  Correct Answer: C

• Question 112:

  Consider a device that uses per-platform label space; which of the following fields is NOT contained in the LFIB?

  A. Incoming label

  B. Outgoing label

  C. Incoming interface

  D. Outgoing interface

  Correct Answer: C

• Question 113:

  Which of the following statements concerning OSPFv3 is false?

  A. MD5 Authentication is not supported.

  B. Router LSAs do not carry IPv6 prefix information

  C. NSSA is not supported in OSPFv3.

  D. OSPFv3 uses a 32-bit router ID.

  Correct Answer: C

• Question 114:

  A router in AS 65100 receives two BGP routes. The first route is for 138.1.1.0/24 with an AS Path of 65200 65300, Local Preference of 100, MED of 100, and router ID 10.10.10.10. The second route is for 138.1.0.0/16 with an AS Path of 65500 65300, Local Preference of 150, MED of 100, and router ID 10.1.1.1. Assuming all other attributes are equal, which route would be used to forward an IP packet with destination IP address 138.1.1.1?

  A. The first BGP route.

  B. The second BGP route.

  C. Both routes are used.

  D. It is impossible to determine without the value of the origin code for both routes.

  Correct Answer: A

• Question 115:

  Which of the following about VPLS MAC learning is TRUE?

  A. Mesh SDPs assist MAC learning by flooding traffic to other mesh SDPs.

  B. A PE keeps a single FDB for all VPLSes it has.

  C. Frames received on a SAP that are broadcast, multicast or unknown are flooded.

  D. The FDB only stores the MAC addresses of remote sites.

  Correct Answer: C

• Question 116:

  Initially, all ports on an Nokia 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

  A. 10 Gbps

  B. 7 Gbps

  C. 3 Gbps

  D. 2 Gbps

  Correct Answer: D

• Question 117:

  Facility fast reroute with node protection is enabled for an LSP, which of the following is FALSE?

  A. Each PLR signals a bypass tunnel that avoids the next-hop downstream router.

  B. When a failure occurs, the PLR pushs an additional label onto the label stack.

  C. No bypass tunnel is established if the PLR cannot provide node protection.

  D. The head-end router sets the local protection desired flag in the session attribute object.

  Correct Answer: C

• Question 118:

  Which MPLS label mode propagates a label mapping only for the FEC for which a router has a label mapping for the FEC's next-hop?

  A. Independent control mode

  B. Ordered control mode

  C. Liberal label retention mode

  D. Conservative label retention mode

  E. Downstream on demand label distribution mode

  Correct Answer: B

• Question 119:

  Click the exhibit.

  

  Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?

  A. ISP 1 has a peering relationship with ISP 2 and ISP 4.

  B. ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.

  C. ISP 1 has a peering relationship with ISP 2 and ISP 3.

  D. ISP 1 has a transit relationship with ISP 2 and ISP 4.

  E. ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.

  Correct Answer: B

• Question 120:

  Which of the following about SAPs is TRUE?

  A. More than one SAP can be configured on a physical port that is configured for null encapsulation.

  B. Dot1Q Ethernet encapsulated access ports can support multiple SAPs and services.

  C. SAPs can be created on ports designated as "Network".

  D. SAPs can only be created on Ethernet ports.

  Correct Answer: B