4A0-103 試験問題を無料オンラインアクセス

Which of the following are characteristics of ECMP LSPs in LDP? Choose three answers

• A.Hashing used to select the egress label.
• B.ECMP enabled in the config>router context.
• C.Liberal label retention mode
• D.Export policy applied to advertise multiple labels for a given FEC.
• E.T-LDP enabled with peers to which load balancing is desired.

Click on the exhibit.

A fully loose LSP "toR6" is enabled with FRR protection. All links have the same cost. After the link between R2 and R4 goes down, FRR protection repairs the LSP and traffic traverses on R1-R2-R7-R8-R4-R6. Which of the following about this CSPF-enabled LSP on an Alcatel-Lucent 7750 SR is TRUE?

• A.The LSP will stay on the current path indefinitely unless another failure occurs.
• B.The LSP will stay on the current path until the resignal timer expires.
• C.The LSP will switchover to R1-R3-R5-R6 after the retry timer expires.
• D.The LSP will switchover to R1-R2-R3-R5-R6 after the resignal timer expires.

Which of the following about CAC is FALSE?

• A.CAC is used when the LSP path has not been computed by CSPF.
• B.CAC is used to perform a bandwidth check based on the router's LSDB.
• C.CAC is used when the LSP path has been computed by CSPF.
• D.CAC is used to perform a bandwidth check on each egress interface of the downstream router.

Which of the following LDP settings can be changed with CLI?

• A.Label retention
• B.Label space mode
• C.Control mode
• D.Keepalive factor

Click on the exhibit.

An LSP path is established on router R1 toward router R6. After router R4 detects that the link between routers R4 and R6 goes down, which of the following will affect the failure propagation time?

• A.The time router R4 takes to detect RSVP Hello message timeout from router R6.
• B.The time router R4 takes to send a PATH Error message toward the head-end router.
• C.The time router R1 takes to signal an alternate path through router R3.
• D.The time router R4 takes to send a RESV Error message to the head-end router.