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Questions # 41:

Which of the following statements regarding LSPs are true? (Choose two)

Options:
A.

IGP-based LSPs are established solely from information contained in routing tables.

B.

The constraint-based routed LSP is calculated at the ingress of the network, based on the router database and user defined constraints.

C.

The constraint-based routed LSP is calculated at each hop of the LSP, based on the route table and user defined constraints.

D.

IGP-based LSPs must use LDP signaling.

Expert Solution
Questions # 42:

Assume that, on the Alcatel-Lucent 7750 SR, an LSP is configured with one-to-one FRR and node protection. Which of the following statements are FALSE? (Choose two)

Options:
A.

Each PLR signals a detour LSP that avoids the downstream node. If the downstream node cannot be avoided, a detour LSP that avoids the downstream link is signaled.

B.

The detour LSP can take one or more hops before merging back on the protected LSP.

C.

The merge point of the protected LSP must be the next-next-hop node

D.

The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish detour LSPs.

E.

The label recording desired flag must be set in the session attribute object in order for the PLR to know what label to swap when using the detour LSP.

Expert Solution
Questions # 43:

Which of the following are characteristics of an LSP? (Choose two)

Options:
A.

It is unidirectional.

B.

It is bidirectional.

C.

It must always have a secondary path.

D.

It provides a specific tunnel for a FEC through the network.

E.

It always follows the IGP best path.

Expert Solution
Questions # 44:

Click on the exhibit button below.

Question # 44

Given the configuration below, which of the following scenarios is FALSE?

Options:
A.

Both the primary and secondary paths are explicitly defined.

B.

The primary path is active and the secondary path is in hot standby.

C.

The LSP defined will use the primary path and will signal the secondary path to become active if the primary path fails.

D.

The LSP has the same source and destination for both primary and secondary paths.

Expert Solution
Questions # 45:

Which of the following statements regarding LDP-over-RSVP are true? (Choose two)

Options:
A.

Targeted sessions must exist between all routers in the tunnel's path.

B.

Each LDP interface must be configured to support LDP tunneling.

C.

LDP prefixes resolve to an RSVP LSP, rather than to a physical egress interface.

D.

RSVP LSPs must exist between each PE-ABR pair, or ABR-ABR pair in each area.

Expert Solution
Questions # 46:

Click on the exhibit button below:

Question # 46

Consider the following:

- Router R2 is an ABR in OSPF Areas 0 and 1.

- Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1.

- Router R1 in Area 0 generates LDP labels for FECs 10.10.102/31 and 10.10.10.4/31

Router R3 in Area 1 places these FECs in its LIB, but it does not place them in its LFIB. What can you do on router R3 to make it populate these labels in its LFIB?

Options:
A.

Disable route summarization on router R3

B.

Enable LDP aggregate prefix match

C.

Create an import policy to accept these FECs

D.

Disable LDP exact match on the specified FECs

Expert Solution
Questions # 47:

In MPLS, at which device are packets assigned to a FEC?

Options:
A.

LSR

B.

LER

C.

eLER

D.

iLER

E.

CE

Expert Solution
Questions # 48:

In MPLS, labels are distributed in the opposite direction of the data flow.

Options:
A.

TRUE

B.

FALSE

Expert Solution
Questions # 49:

Which of the following statements regarding RSVP refresh reduction are true1? (Choose two)

Options:
A.

Message-IDs replace individual refresh messages.

B.

Refresh reduction applies only to reservation messages.

C.

RSVP generates a summary-refresh message for each LSP.

D.

An LSP state change causes an incremented Message-ID.

Expert Solution
Questions # 50:

Click on the exhibit button below.

Question # 50

Consider the following:

    Routers R1 and R4 are in Area 1.

    Routers R4 and R5 in Area 0.

    Routers R5 and R3 are in Area 2.

To support LDP-over-RSVP tunnels between routers R1 and R3 over path R1-R4-R5-R3, with which routers will router R5 require targeted sessions? (Choose two)

Options:
A.

Router R1

B.

Router R4

C.

Router R2

D.

Router R3

Expert Solution
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Viewing questions 41-50 out of questions