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

Which of the following is TRUE when the explicit null is implemented?

Options :

A : The penultimate router will forward packets to the eLER, based on the IP header.

B : The eLER will receive packets with a top label value of 0.

C : The eLER will receive packets with a top label value of 3.

D : The penultimate router will pop the top label from the packets.

Answer: B

Question 3

Which of the following conditions must a router meet for an LSP path's RSVP session to exist? Choose two answers

Options :

A : The router must build the Path State Block (PSB).

B : The router must build the Reservation State Block (RSB).

C : The router must build the Session State Block (SSB)

D : The router must send the second RESV refresh message.

E : The router must receive the second PATH refresh message.

Answer: A,B

Question 4

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

Question 5

Which approach to LSP path diversity provides the most control, but the least flexibility?

Options :

A : Administrative Groups

B : Shared Risk Link Groups

C : Strict hop LSP paths

D :

Fast reroute

Answer: C

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