Effective Study Techniques for the Nokia 4A0-103 Exam

Questions 11

Click on the exhibit.

4A0-103 Question 11

An LSP path is established on router R1 toward router R6. If the link between routers R4 and R6 goes down, which of the following is the quickest way for service recovery?

Options:

Router R1 updates its FIB after a new SPF calculation.

Router R1 switches to a secondary path.

Router R4 switches to a FRR path.

Router R4 switches to a standby secondary path.

Buy Now

Questions 12

Click on the exhibit.

4A0-103 Question 12

Initially, all links have 800Mbps of unreserved bandwidth. All links are of equal costs. Shared explicit reservation style is used. LSP 1 is signaled first with a setup and hold priority of 2. Then, LSP 2 is signaled with setup and hold priority of 5. Both LSPs go from R1 to R5. Which of the following is TRUE?

Options:

LSP 1 will follow R1-R3-R4-R5. LSP 2 will follow R1-R2-R5.

LSP1 will follow R1-R2-R5. LSP 2 will follow R1-R3-R4-R5.

Both LSP 1 and LSP 2 will follow R1-R2-R5.

Both LSP 1 and LSP 2 will follow R1-R3-R4-R5.

Buy Now

Questions 13

Click on the exhibit.

4A0-103 Question 13

An LDP-over-RSVP tunnel is established between routers R1 and R6. There is a VPN service running between routers R1 and R6. Which of the following is TRUE?

Options:

Router R3 swaps both the RSVP-TE LSP label and LDP transport label received with new labels.

Router R3 swaps the VPN service label received with a new label.

Router R3 uses the same RSVP-TE LSP label as the one received from router R2.

Router R3 uses the same LDP transport label as the one received from router R2.

Buy Now

Questions 14

Click on the exhibit.

4A0-103 Question 14

LSP "toR8-5" requests fast reroute protection. What could be done to remove the Failure Code shown?

Options:

The LSP must be enabled with CSPF on the head-end router.

Fast reroute must be enabled on the downstream routers.

A mixture of strict and loose hops must be defined in the primary path.

CSPF and fast reroute must be enabled on all downstream routers.

Buy Now

Questions 15

Click on the exhibit.

4A0-103 Question 15

Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1. Why would LDP aggregate-prefix-match be enabled on router R3?

Options:

To reduce the number of LDP sessions

To reduce the number of LIB and LFIB entries

To bypass the LDP exact prefix match rule

To export summarized routes from OSPF to LDP

Buy Now

Questions 16

What MPLS function should be performed by a router that receives a data packet with an MPLS label value of 0?

Options:

Push an additional label onto the label stack.

Pop the label.

Swap the label.

Pop the label and push an additional label onto the label stack.

Buy Now

Questions 17

Which of the following best describes downstream unsolicited label distribution?

Options:

An LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.

An LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC.

An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.

An LSR will only distribute a label for a FEC when it has been requested to do so.

Buy Now

Questions 18

A router has two admin groups defined (GREEN=1 and RED=3). An interface is associated to both admin groups. What value will be shown in the Admin Group sub-TLV for this interface?

Options:

0x4

0x5

0x10

0xa

Buy Now

Questions 19

Which of the following about Fast Reroute node protection tunnels is FALSE?

Options:

Node protection tunnels detour around a failed next downstream router.

Node protection tunnels can only be requested for a primary LSP path.

Node protection tunnels are only used by one-to-one Fast Reroute.

Link protection tunnels are established if a router is unable to establish node protection tunnels.

Buy Now

Questions 20

Fill in the blanks: A ________device has all interfaces inside the provider domain, and a _______ device has at least one interface outside the provider domain.