Question 1

Which of the following about Alcatel-Lucent 7750 SR command "oam Isp-trace prefix" is FALSE?

Options :

A : The router performs a unidirectional LSP test.

B : The router collects hop information along the tunnel-s path.

C : The router uses MPLS Echo Request packets that are IP-routed,

D : The MPLS TTL values are incremented at each request.

Answer: C

Question 2

An LSP is configured with a fully loose path and CSPF is not enabled. An LSR receives the first PATH message for this LSP. Which of the following is NOT performed by the LSR?

Options :

A : The LSR regenerates and forwards a new PATH message.

B : The LSR stores the PATH message in the PSB.

C : The LSR forwards the PATH message based on the HOP object in the RSB.

D : The LSR looks up the PATH message-s destination IP address in the FIB.

Answer: C

Question 3

True or False? MPLS may use an existing data link layer header field to identify a label, instead of using a specific MPLS header

Options :

A : TRUE

B : FALSE

Answer: A

Question 4

Click on the exhibit button below.

With fast reroute enabled, and given the following:

Two protected LSPs with the path R1-R2-R3

Both LSPs enable facility bypass and link protection.

When router R1 is the PLR, which router becomes the MP?

Options :

A : Router R1

B : Router R2

C : Router R3

D : Router R4

E : Router R5

Answer: B

Question 5

Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.

Options :

A : PE, P

B : LER, LSR

C : LSR, LER

D : iLER, eLER

E : eLER, iLER

F : P, PE

Answer: D

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