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Viewing questions 21-30 out of questions
Questions # 21:

Which of the following fields does NOT appear in the MPLS label header?

Options:

A.

Label

B.

Frame check sequence

C.

Traffic Class (previously called Experimental)

D.

Time To live

E.

Bottom of stack bit

Questions # 22:

Which of the following regarding MPLS encapsulation for VPRN services is TRUE?

Options:

A.

The customer's Layer 3 header is removed at the iLER.

B.

The customer's Layer 2 header is removed at the iLER.

C.

The customer's Layer 3 header is removed at the eLER.

D.

The customer's Layer 2 header is removed at the eLER.

Questions # 23:

Click on the exhibit.

Question # 23

An LSP path is established on router R1 toward router R6. If there is a problem on router R4, but the link between R2 and R4 remains up, which of the following will affect the failure detection time?

Options:

A.

The time router R2 takes to receive a PATH Error message from router R4.

B.

The time router R2 takes to find out a number of RSVP Hello messages have been missed.

C.

The time router R2 takes to send a PATH Tear message to the head-end router.

D.

The time router R2 takes to receive a PATH message from router R4 after a PATH refresh interval.

Questions # 24:

If an Alcatel-Lucent 7750 SR is an iLER operating in pipe mode, which of the following regarding the TC field (EXP bits) is TRUE?

Options:

A.

The TC field is set based on the value of the DSCP field inside the customer packet.

B.

The TC field is set to a specific value via explicit administrative configuration.

C.

The TC field is set to a system generated random number.

D.

The TC field is set by the eLER.

Questions # 25:

Which of the following regarding label population is TRUE?

Options:

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.

Questions # 26:

To enable the LDP-over-RSVP feature, which of the following configurations is NOT required on an Alcatel-Lucent 7750 SR?

Options:

A.

Enable the Idp-over-rsvp feature on all PEs and ABRs along the LSP tunnel.

B.

Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.

C.

Configure RSVP-TE LSPs in each area between each PE-ABR and ABR-ABR pair.

D.

Configure T-LDP sessions with the tunneling option.

Questions # 27:

Which of the following about IS-IS Traffic Engineering on an Alcatel-Lucent 7750 SR is FALSE?

Options:

A.

Traffic engineering information is carried in the extended TLVs.

B.

Traffic engineering must be enabled on all IP/MPLS routers along the LSP path.

C.

Traffic engineering information is stored in the opaque database,

D.

Traffic engineering is required for constraint-based LSPs.

Questions # 28:

Click on the exhibit.

Question # 28

Which of the following is FALSE?

Options:

A.

The router can reach prefix 192.10.1.2/32 through a RSVP-TE tunnel.

B.

The router can reach prefix 192.10.1.2/32 through an LDP tunnel.

C.

The router 10.10.10.2 is the egress router of the prefix 192.10.1.2/32.

D.

The Isp-ping tool is used to perform a unidirectional LSP test.

Questions # 29:

Which of the following messages is NOT used in T-LDP operation?

Options:

A.

Hello message

B.

Init message

C.

Keepalive message

D.

Label Mapping message

E.

ACK message

Questions # 30:

Which of the following about an ERO in an RSVP PATH message is FALSE?

Options:

A.

ERO is used by downstream routers to determine the next-hop for the LSP.

B.

ERO contains label information used to signal an LSP path.

C.

ERO is not always present in the PATH message.

D.

Each downstream router updates information inside the ERO.

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