Nokia 4A0-116 Exam Dumps [2023] Practice Valid Exam Dumps Question [Q21-Q40]

Nokia 4A0-116 Exam Dumps [2023] Practice Valid Exam Dumps Question [Q21-Q40]

October 20, 2023 latestexam 0 Comments

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Nokia 4A0-116 Exam Dumps [2023] Practice Valid Exam Dumps Question

4A0-116 Dumps – Grab Out For [NEW-2023] Nokia Exam

To prepare for the Nokia 4A0-116 exam, candidates should have a solid understanding of IP networking and routing protocols, as well as experience in configuring and troubleshooting network devices. Nokia offers training courses and materials to help candidates prepare for the exam, including online courses, self-study materials, and hands-on lab sessions. The Nokia 4A0-116 exam is a challenging but rewarding certification that will enhance the career prospects of IT professionals in the networking industry. With the increasing demand for efficient and scalable networks, the Nokia Segment Routing technology is becoming more prevalent, and having this certification will demonstrate a high level of expertise in this area.

NO.21 Based upon the exhibit, which of the following statements regarding the configuration is FALSE?

Traffic engineering information will only be advertised for the interfaces that have both MPLS and RSVP enabled.

The Node-SID assigned to this router is the second label in the defined range.

Traffic engineering has been enabled on this router.

Adjacency-SID labels will not be advertised as they have not been defined under the physical interfaces.

NO.22 The exhibit shows the fast re-route configuration on router R1, in which both R-LFA and TI-LFA have been enabled. Assume that there are multiple potential backup paths for a given prefix. Which of the following options will router R1 use?

A standard LFA path that would not coincide with the path after IGP re-convergence.

An R-LFA path that would not coincide with the path after IGP re-convergence.

A D-LFA path that would not coincide with the path after IGP re-convergence.

A D-LFA path that would coincide with the path after IGP re-convergence.

The exhibit shows that both R-LFA and TI-LFA have been enabled on router R1. R-LFA (Remote Loop-Free Alternate) is a method that is used to protect the active segment of a tunnel, and it allows the router to find a backup path that coincides with the path that will become active after IGP reconvergence. TI-LFA (Topology Independent LFA) is a method that is used to protect an end-to-end multi-segment tunnel, it allows the router to find a backup path that does not rely on the IGP topology, but on the segment routing topology.
With R-LFA and TI-LFA enabled, router R1 will use a D-LFA (Dual-Loop-Free Alternate) path, which is a combination of both R-LFA and TI-LFA, this path will coincide with the path after IGP re-convergence.
A standard LFA, R-LFA, and D-LFA which do not coincide with the path after IGP re-convergence are not the options.

NO.23 Which of the following statements about the operation of seamless-BFD is FALSE?

Seamless-BFD responses are sent back using the LSP label stack.

To be able to respond to seamless-BFD messages, a router must be configured as a reflector.

A seamless-BFD template needs to be configured on the head-end of the LSP.

The routing protocol (OSPF or IS-IS) is used to carry the reflector discriminator information.

Seamless-BFD is a mechanism that allows the detection of faults in MPLS LSPs more quickly by using BFD (Bidirectional Forwarding Detection) protocol. Seamless-BFD responses are sent back using the MPLS data-plane, not the LSP label stack.

NO.24 Which of the following statements about a Segment Routing SID is FALSE?

A Node-SID is usually associated with a router’s system interface.

A Prefix-SID can be configured directly as a label value or indirectly as an index.

Adjacency-SID values are taken from the SRGB configured for the routing protocol.

An Adjacency-SID does not have to be configured.

An Adjacency-SID does not have to be configured: this statement is not true, An Adjacency-SID is associated with a neighbor router, it is used to identify an adjacency between two routers. An Adjacency-SID must be configured to identify the adjacency.

NO.25 Which of the following list of SR-TE attributes has to be advertised among routers?

Administrative groups that each link belongs to, TE metric of links, bandwidth availability of each link, SRLG that each link belongs to.

Administrative groups that each link belongs to, TE metric of links, SRLG that each link belongs to.

Administrative groups that each link belongs to, TE metric of links, bandwidth availability of each link, SRLG that each link belongs to, link status up/down.

Administrative groups that each link belongs to, TE metric of links, SRLG that each link belongs to, link status up/down.

In SR-TE, routers need to advertise certain attributes of their links to other routers in the network in order to calculate traffic-engineered paths. These attributes include:
Administrative groups that each link belongs to: This information is used to restrict the use of certain links to specific traffic types or groups.
TE metric of links: This information is used to calculate the cost of using a particular link for a traffic-engineered path.
Bandwidth availability of each link: This information is used to control the amount of traffic that can be sent over a particular link.
SRLG that each link belongs to: This information is used to avoid routing over the same physical link. Link status up/down is not needed to be advertised as it is part of the IGP protocol and is used to check the reachability of a link.

NO.26 Which of the following statements about path definitions is FALSE?

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

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

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

NO.27 Which of the following statements about primary and secondary SR-TE LSP paths is FALSE?

Only one LSP path forwards the traffic at any time,

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

The primary path is always preferred over a secondary pa

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

Typically, in SR-TE, only two paths can be configured for a given SR-TE LSP: primary path and secondary path. The primary path is used for normal traffic forwarding, and the secondary path is used as a backup in case the primary path fails. Only one LSP path forwards the traffic at any time.

NO.28 Which of the following statements about Segment Routing tunnels is FALSE?

A Segment Routing tunnel defined by a Node-SID uses the shortest IGP Path.

A Segment Routing tunnel can be defined by multiple Node-SIDs.

A Segment Routing tunnel can be defined by a combination of Node-SIDs and Adjacency-SIDs.

For a Segment Routing tunnel, an intermediate router will always forward the packet based on the best IGP path.

an intermediate router in a Segment Routing tunnel may forward packets based on the specific SIDs defined in the Segment Routing tunnel and not always the best IGP path.

NO.29 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.

Shared-Risk-Link Groups(SRLG) is taken into account when calculating both primary and secondary path to avoid routing over the same physical link.

NO.30 A router participating in SR-TE is advertising a value of Ox11 for the admin-group membership of one of its interfaces. Which of the following statements is TRUE?

The interface belongs to admin group RED, configured with a value of 17.

The interface belongs to two different admin groups.

The interface belongs to three different admin groups.

The interface belongs to four different admin groups.

In SR-TE, the admin-group is represented by a 32-bit value, where each bit represents a different admin-group. The value Ox11 in binary is 000100010001, which has two bits set to 1, indicating that the interface belongs to two different admin groups. The exact admin-groups that the interface belongs to depends on how the admin-groups have been configured on the router.

NO.31 An SR-TE LSP with a path definition that includes router R4 as a loose hop and for which Seamless-BFD has been enabled is following the path shown in the exhibit. What happens after router R4 fails if the routers along the path follow the default behavior?

The head end will periodically try to calculate a new path at a rate defined by the retry timer.

The head end will periodically try to calculate a new path at a rate defined by the resignal timer.

The head end will continue forwarding traffic to the current next-hop indefinitely, which will be discarded at the point of failure.

The head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence.

When an SR-TE LSP with Seamless-BFD enabled, the BFD sessions are established between the routers along the path to detect any failures quickly. If a failure happens in the path, the router will stop forwarding the traffic and send a BFD control packet to the head-end router. In this case, R4 failed, BFD sessions will detect the failure and send a message to the head-end router, but since R4 is a loose hop, the path doesn’t have to be re-calculate. The head-end router will continue forwarding traffic to the current next-hop, R2, which will be discarded at the point of failure (R4) as it doesn’t know about the failure. And the traffic will not be redirected to R3 after IGP reconvergence.

NO.32 In which of the following aspects does the configuration of flex-algo LSPs have an advantage over the configuration of SR-TE LSPs?

Label stack size of the encapsulated data packets

List of traffic-engineering constraint types available to choose from

Ability to associate one primary and up to two secondary paths to the same LSP

Flexibility of configuring each LSP with its own set of traffic-engineering constraints

Flex-Algo LSPs are a type of LSP that allows for greater flexibility in configuring traffic engineering constraints. This is because flex-algo LSPs can be configured with a unique set of traffic engineering constraints for each LSP, whereas SR-TE LSPs use a predefined set of traffic engineering constraints that applies to all LSPs.
Label stack size of the encapsulated data packets, List of traffic-engineering constraint types available to choose from, and Ability to associate one primary and up to two secondary paths to the same LSP are not the advantages of flex-algo LSPs over SR-TE LSPs.

NO.33 Which of the following statements about Segment Routing is FALSE?

No path signaling is required to establish an SR tunnel.

Intermediate routers do not maintain any tunnel informal

A link-state IGP is required to distribute SID information.

For TE-constrained tunnels, each data packet typically carries a single MPLS label to specify the tunnel path.

Intermediate routers do not maintain any tunnel informal: this statement is false, Intermediate routers do maintain tunnel information, such as the Forwarding Information Base (FIB) to forward the packets according to the path specified in the packets.

NO.34 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 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

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

NO.35 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.

The data is transparently carried from end to end: This statement is not true, MPLS does not provide data transparency, which means that the data is not carried unmodified from end to end. MPLS uses labels to forward data, so the original IP packets are encapsulated in new MPLS packets, and the original IP headers are not visible at the egress LSR.

NO.36 Examine the exhibit.

An LSP is being configured to start at R1 and 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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Earning the Nokia 4A0-116 certification demonstrates that an IT professional has a deep understanding of Nokia Segment Routing and is capable of designing, deploying, and managing segment routing networks. Nokia Segment Routing Exam certification can be an important credential for IT professionals who work with large-scale networks and want to demonstrate their expertise to employers and clients.

4A0-116 Exam Dumps PDF Guaranteed Success with Accurate & Updated Questions: https://www.latestcram.com/4A0-116-exam-cram-questions.html

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