4A0-103 試験問題を無料オンラインアクセス

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?

• A.The LSR looks up the PATH message's destination IP address in the FIB.
• B.The LSR regenerates and forwards a new PATH message.
• C.The LSR forwards the PATH message based on the HOP object in the RSB.
• D.The LSR stores the PATH message in the PS

Which of the following about MPLS fast reroute is TRUE?

• A.Fast reroute provides fast failure detection to the head-end router.
• B.Fast reroute protects both primary and secondary paths.
• C.Fast reroute provides path protection close to the failure point.
• D.Fast reroute is used when redundant links are not available.

You wish to advertise LDP labels for all local networks; which is the most effective policy statement to use?

• A.match local
• B.from protocol direct
• C.from protocol local
• D.from prefix-list direct
• E.match protocol direct

Click on the exhibit.

An LSP's primary path takes R1-R3-R5-R6. Its fully loose secondary path is configured for SRLG. All links are of equal cost. Which path will the secondary path take?

• A.The secondary path will take R1-R3-R2-R4-R5-R6.
• B.The secondary path will take R1-R2-R4-R6.
• C.The secondary path will take R1-R2-R3-R5-R6.
• D.The secondary path will take R1-R3-R2-R4-R6.

Click on the exhibit.

Initially, all links along the path R1-R2-R4-R6 have 400Mbps unreserved bandwidth and all links along the path R1-R3-R5-R6 have 800Mbps unreserved bandwidth. Shared Explicit reservation style is used and Make-Before-Break is enabled. Both fully loose LSPs have been signaled as shown. Later, the configured bandwidth for LSP-1 is changed to 400Mbps. Which of the following is TRUE?

• A.LSP-1 will be torn down because CSPF fails to find a new path.
• B.After the old path for LSP-1 is torn down, the new path is established on R1-R3-R5-R6.
• C.LSP-1 will stay on R1-R2-R4-R6 because there is enough bandwidth on the existing path.
• D.After a new path for LSP-1 is established on R1-R3-R5-R6, the old path is torn down.