(Nokia) Authentic 4A0-116 Dumps - Reduce Your Chances of Failure

(Nokia) Authentic 4A0-116 Dumps – Reduce Your Chances of Failure

Jonnie Karnath2023-04-22T11:24:53+00:00

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1. When OSPF is used to support Segment Routing, the first byte of the link-state ID associated with each of the opaque LSAs indicates the type of information being advertised.

Which of the following associations between the first-byte value and its meaning is FALSE?

Value 1 - Traffic Engineering

Value 4 - Router Info

Value 7 - SRGB Range

Value 8 - Extended Link Info

2. Examine the exhibit.

Based upon the configuration, which routers will the LSP go through?

R1, R3, R2, R5, R4 and R6

R1, R2, R5 and R6

R1, R3, R4 and R6

R1, R2, R4 and R6

3. Which of the following types of information is considered by a stateless PCE when it processes a new LSP path calculation request?

The IGP link-state database

The traffic-engineering database

The operational state of existing LSP paths

The amount of bandwidth reserved for each of the existing LSP paths

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

A strict hop must be adjacent to the previous hop in the list.

The TE metric for a link is by default the same as the IGP metric.

Shared-Risk-Link Groups are only taken into account when calculating the secondary path.

The head-end router may calculate a path that takes into account max hop count and bandwidth constraints.

5. OSPF is being used for segment routing with traffic-engineering (SR-TE). The traffic-engineering option has been set to "sr-te false".

Which of the following statements is TRUE?

The TE information will be advertised for all the OSPF links that have MPLS enabled.

The TE information will only be advertised using application-specific sub-TLVs.

The TE information will only be advertised for the OSPF links that have both MPLS and RSVP enabled.

The TE information will only be advertised using extended-link opaque LSAs.

6. Based on the exhibit, which of the following statements about fast re-route for flex-algo instance 129 is TRUE?

Only standard LFA is enabled on router R1; fast re-route is not enabled on router R2.

Only standard LFA is enabled on both routers R1 and R2.

Standard LFA and remote-LFA are enabled on router R1; fast re-route is not enabled on router R2.

Standard LFA and remote-LFA are enabled on router R1; standard LFA and TT-LFA are enabled on router R2.

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

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.

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

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

8. Which of the following statements about Multi-Protocol Label Switching networks is FALSE?

MPLS uses a signaling protocol to exchange labels between routers.

An LSR forwards data based on the MPLS labels.

An LSP is a bi-directional tunnel that uses MPLS labels to forward data.

The data is transparently carried from end to end.

9. Which of the following is NOT a valid option to steer traffic into a flex-algo segment-routing tunnel?

Using a flex-algo Node-SID as an explicit hop in the path definition of an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.

Specifying the flex-algo instance ID as an additional TE constraint for an SR-TE LSP and enabling the sr-te tunnel type for a VPN service.

Configuring and applying a VRF import policy to a VPRN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.

Configuring and applying a VSI import policy to an EVPN service and enabling the sr-is-is or sr-ospf tunnel type for the service, depending on the underlying routing protocol.

10. Examine the exhibit.

An LSP is being configured to start at R1and end at R6 using local CSPF. The LSP has the following constraints. Include admin-group GREEN, use the TE metric and hop-limit 3.

What routers will be included in the LSP path?

R1, R2, R4, R6

R1, R5, R6

R1, R3, R5, R6

R1, R6

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11. 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?

It selects an immediate neighbor.

It selects a remote router, reachable through a tunnel defined by a single Node-SI

It selects a remote router, reachable through a tunnel defined by a Node-SID and one or two Adjacency-SIDs.

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.

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

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

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.

A stateful PCE can allow LSPs to reserve bandwidth.

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