4A0-103 Online Practice Questions and Answers

Which of the following statements regarding LDP-over-RSVP are true? (Choose two)

A. Targeted sessions must exist between all routers in the tunnel's path.

B. Each LDP interface must be configured to support LDP tunneling.

C. LDP prefixes resolve to an RSVP LSP, rather than to a physical egress interface.

D. RSVP LSPs must exist between each PE-ABR pair, or ABR-ABR pair in each area.

Click on the exhibit button below.

Which fields in this output uniquely identify the RSVP session belonging to a single LSP? (Choose three)

A. Tunnel ID

B. Name

C. LSP ID

D. To

Which of the following is described by the following statement? An LSR propagates a label mapping only for an FEC for which it has a label mapping for the FEC next-hop.

A. Independent control mode.

B. Ordered control mode.

C. Liberal label retention.

D. Conservative label retention.

E. Downstream on demand

LDP is enabled on both ends of a point-to-point link, but the "show router Idp status" command indicates that LDP is operationally down. The Oper Down Reason field shows the message "systemIpDown." What might cause this condition?

A. The LSP is in the administrative down state.

B. The router's router ID overlaps another.

C. The router's interfaces do not have LDP running.

D. The router's system interface requires an IP address

Click on the exhibit.

This policy is applied as an LDP export policy. In addition to the FECs learned from its neighbors, which FECs now appear in the router's LIB?

A. Local FECs not included in the 192.168.1.0/24 address space and the system IP FEC.

B. Only the system IP FEC appears in the LIB.

C. Any local FECs, except those with a 24-bit mask.

D. Local FECs in the 192.168.1.0/24 address space.

Two directly connected routers set different interface Hello timeout values. Router R1 uses 15 seconds, while router R2 uses 30 seconds. Which of the following best describes the LDP adjacency?

A. The adjacency forms with the lower timeout value.

B. The adjacency forms with the higher timeout value.

C. The adjacency is in init state.

D. The adjacency times out after 30 seconds.

Click on the exhibit.

An LSP traverses the path R1-R2-R3-R6 and facility fast reroute is enabled. If the protected LSP carries one transport label and one service label, how many labels will be on the bypass tunnel if router R2 fails?

A. 1

B. 2

C. 3

D. 4

Click on the exhibit.

Which of the following about the bypass tunnel is FALSE?

A. The router 10.10.10.1 is a PLR providing node protection for the router 10.10.10.3.

B. One-to-one fast reroute protection is requested by an LSP.

C. The bypass-link tunnel is used to avoid the link with the egress interface address 10.3.4.4.

D. The bypass-node tunnel is used to avoid the next-hop downstream router 10.10.10.3.

Initially, all ports on an Alcatel-Lucent 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

A. 10 Gbps

B. 7 Gbps

C. 3 Gbps

D. 2 Gbps

Which of the following about CSPF is TRUE?

A. The tail-end router performs the CSPF calculation for an LSP.

B. CSPF calculations are always performed on RSVP-TE based LSPs.

C. The head-end router performs the CSPF calculation for an LSP.

D. Each downstream router performs its own CSPF calculation for an LSP.