Question 1

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 2

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 3

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

Options :

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

B : Link protection tunnels are only requested for a primary LSP path.

C : Link protection tunnels can be created for both one-to-one or facility Fast Reroute.

D : Link protection tunnels detour around a failed next downstream router.

Answer: D

Question 4

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

Question 5

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

Options :

A : Conservative label retention

B : Liberal label retention

C : Downstream on demand

D : Downstream unsolicited

Answer: B

Free 4A0-103 Mock Exam – Practice Online Confidently

Buying Options: