Which of the following statements about segment routing fast re-route is FALSE?

On a Nokia 7750 SR, R-LFA and TI-LFA can be enabled independently of each other.

Fast re-route is a temporary fix that becomes active for a short period of time after a local network failure.

Fast re-route typically protects the active segment of a tunnel, but under certain conditions it can protect an end-to-end multi-segment tunnel instead.

The parameter 'max-sr-frr-labels' limits the number of labels that R-LFA can add to the data packet encapsulation.

Based on the exhibit, which of the following is a viable option for the Path Computation Element (PCE) to obtain all the necessary topology and traffic-engineering information from the network, so that it can calculate LSP paths on behalf of the PE routers?

Establishing BGP sessions using the BGP-LS address family with routers R3 and R4

Establishing an IGP adjacency with router R2

Establishing IGP adjacencies with routers R1 and R2

Establishing a BGP session using the BGP-LS address family with router R3

Which of the following statements about primary and secondary SR-TE LSP paths is FALSE?

Up to three paths can be configured for a given SR-TE LS

Only one LSP path forwards the traffic at any time,

The primary path is always preferred over a secondary pa

Preference values can be configured for non-standby secondary paths.

Which of the following statements about path definitions is FALSE?

The path hops can be defined by either the system or physical interface IP address.

Once a path is associated with an LSP, it cannot be used by other LSPs.

A loose hop is one that does not have to be directly adjacent to the previous hop in the path list

In addition to the hops defined in the path list, the head-end and tail-end routers are implicitly added.

Which of the following statements about the Path Computation Element (PCE) is FALSE?

A stateful PCE can allow LSPs to reserve bandwidth.

The PCE can obtain topology and traffic-engineering information from the network using either a link-state IGP or BGP-LS.

A stateful PCE proactively monitors all the existing LSPs and triggers the necessary repairs and re-optimizations.

A stateless PCE can calculate cross-area traffic-engineering-constrained LSP paths.

Free Nokia 4A0-116 Exam Practice Questions & Explanations

Last updated on: Aug 27, 2026
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