Which of the following statements about a Segment Routing SID is FALSE?

• A. A local Node-SID can be configured directly as an MPLS label.
• B. All routers do NOT need to have the same SRGB range configured.
• C. A router advertises its local Node-SID as a local SRGB and an index only if it is configured as an index.
• D. A local Node-SID can be configured as an index.

The exhibit presents packets being transmitted inside an LSP's multi-segment primary path going from router R1 to router R8. The LSP also has a standby secondary path, and Seamless-BFD has been enabled on the primary path. The link between routers R1 and R2 fails, and fast re-route (FRR) is triggered. As a result, router R1 forwards the packets to router R3 and adds the proper FRR encapsulation to reach which router?

• A. To reach router R2, which is the LSP's intended next-hop.
• B. To reach router R4, which is the tail-end of the active segment.
• C. To reach router R8, which is the tail-end of the LSP.
• D. To reach router R5, which is the shortest way to go back to the original path.

Which of the following is NOT an advantage of using a PCE for the computation of TE-constrained LSP paths, as compared to using CSPF locally on the PE router?

• A. The ability to create LSP paths with bandwidth reservation
• B. The ability to create LSPs with primary and secondary paths
• C. The ability to create cross-area TE-constrained LSP paths
• D. The ability to ensure that some LSP paths are disjoint

Which of the following statements about SR-TE administrative constraints is FALSE?

• A. The TE metric for a link is by default the same as the IGP metric.
• B. A strict hop must be adjacent to the previous hop in the list.
• C. Shared-Risk-Link Groups are only taken into account when calculating the secondary path.
• D. The head-end router may calculate a path that takes into account max hop count and bandwidth constraints.

For any of the LFA methods to work properly, there must be a router in the backup path that will forward traffic addressed to the destination without sending it back to the source. Which of the following statements describes the way R-LFA selects such a router?

• A. It selects a remote router, reachable through a tunnel defined by a Node-SID and one or two Adjacency-SIDs.
• B. It selects an immediate neighbor.
• C. It can select an immediate neighbor or a remote router, as long as the backup path coincides with the path that will become active after IGP reconvergence.
• D. It selects a remote router, reachable through a tunnel defined by a single Node-SID.