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Which of the following devices assumes the active role during the establishment of an LDP session?

A.

The peer with the higher physical address.

B.

The peer with the higher transport address.

C.

The peer with the lower physical address.

D.

The peer with the lower transport address.

E.

The peer that generated the first Hello message.

Which of the following best describes downstream on demand label distribution?

A.

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

B.

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

C.

An LSR distributes a label mapping for a FEC when it has been requested to do so.

D.

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

Which MPLS label mode saves label mappings received from all peer LSRs?

A.

Conservative label retention

B.

Liberal label retention

C.

Downstream on demand

D.

Downstream unsolicited

Click on the exhibit.

The LSP "toR6" is configured with a fully strict path on an Alcatel-Lucent 7750 SR. Which of the following configurations is required to enable fast reroute for this LSP?

A.

Enable fast-reroute on all routers along the path. R1, R2, R4, and R6.

B.

Enable both link-protection and node-protection on router R1.

C.

Enable fast-reroute with either one-to-one or facility mode on this LSP.

D.

Enable link-protection only on router R4.

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.

Which of the following about LSP path configuration on an Alcatel-Lucent 7750 SR is TRUE?

A.

The path must include at least one hop.

B.

The path may be used for multiple LSPs.

C.

The path may be used multiple times in a single LSP.

D.

The path must define a tunnel destination IP address.

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.

How does a DMP inform the downstream routers that it has merged detour tunnels?

A.

The DMP sends the DMP_Object in each detour's PATH messages.

B.

The DMP summarizes PATH messages, giving each detour its own MSGJD.

C.

The DMP identifies itself as the previous hop in each detour's PATH message.

D.

The DMP sends a single PATH message containing the merged DETOUR_Objects.

An Alcatel-Lucent 7750 SR enabled with LDP has multiple equal cost paths to a given FEC. After ECMP is enabled, which of the following is FALSE?

A.

The router has new entries added for the given FEC in its LIB.

B.

The router has new entries added for the given FEC in its FIB.

C.

The router generates a single label for the given FEC and advertises it to all its peers,

D.

The router has multiple LSP tunnels for the given FEC.

Which of the following are features of RSVP-TE? Choose three answers.

A.

It supports IGP-based LSPs.

B.

It supports constrained path LSPs.

C.

It does not support loose explicit path LSPs.

D.

It is recommended for use in Traffic Engineering applications.

E.

It cannot be used with facility backup fast reroute.