Nokia 4A0-116認定試験問題集には42練習テスト問題があります
最新4A0-116試験問題集には高得点で一発合格
Nokiaのセグメントルーティング技術に関するITプロフェッショナルの知識とスキルをテストするために設計された認定試験であるNokia 4A0-116試験。この試験は、Nokiaのセグメントルーティング技術で認定を取得し、この分野の専門知識を証明したい個人を対象としています。 Nokia 4A0-116試験は、ネットワーク設計と実装のスキルと知識を向上させたいITプロフェッショナルにとって最も重要な試験の1つです。
質問 # 12
Which of the following statements about path definitions is FALSE?
- A. The path hops can be defined by either the system or physical interface IP address.
- B. A loose hop is one that does not have to be directly adjacent to the previous hop in the path list
- C. In addition to the hops defined in the path list, the head-end and tail-end routers are implicitly added.
- D. Once a path is associated with an LSP, it cannot be used by other LSPs.
正解：A
質問 # 13
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?
- A. The head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence.
- B. The head end will periodically try to calculate a new path at a rate defined by the resignal timer.
- C. The head end will periodically try to calculate a new path at a rate defined by the retry timer.
- D. The head end will continue forwarding traffic to the current next-hop indefinitely, which will be discarded at the point of failure.
正解：D
解説：
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.
質問 # 14
Which of the following statements about the Path Computation Element (PCE) is FALSE?
- A. A stateless PCE can calculate cross-area traffic-engineering-constrained LSP paths.
- B. The PCE can obtain topology and traffic-engineering information from the network using either a link-state IGP or BGP-LS.
- C. A stateful PCE can allow LSPs to reserve bandwidth.
- D. A stateful PCE proactively monitors all the existing LSPs and triggers the necessary repairs and re-optimizations.
正解：C
解説：
Stateful PCE can monitor the existing LSPs and trigger necessary repairs and re-optimizations, but it does not have the capability to reserve bandwidth.
質問 # 15
Which of the following is an advantage of enabling label stack reduction for a CSPF-calculated path, as compared to using plain CSPF?
- A. The number of hops included in the end-to-end path is reduced.
- B. There is a larger list of traffic-engineering constraint types that can be imposed on the LSP path.
- C. The path calculation can be delegated to an external path computation element (PCE).
- D. The routers in the calculated path can take advantage of ECMP to better distribute the traffic load.
正解：A
解説：
Once a path is associated with an LSP, it cannot be used by other LSPs is False. A path can be used by multiple LSPs, but each LSP can have different attributes like bandwidth, priority and other constraints.
質問 # 16
Which of the following statements about the operation of seamless-BFD is FALSE?
- A. To be able to respond to seamless-BFD messages, a router must be configured as a reflector.
- B. A seamless-BFD template needs to be configured on the head-end of the LSP.
- C. The routing protocol (OSPF or IS-IS) is used to carry the reflector discriminator information.
- D. Seamless-BFD responses are sent back using the LSP label stack.
正解：D
解説：
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.
質問 # 17
Which of the following statements about a Segment Routing SID is FALSE?
- A. A Node-SID is usually associated with a router's system interface.
- B. An Adjacency-SID does not have to be configured.
- C. Adjacency-SID values are taken from the SRGB configured for the routing protocol.
- D. A Prefix-SID can be configured directly as a label value or indirectly as an index.
正解：B
解説：
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.
質問 # 18
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?
- A. The interface belongs to four different admin groups.
- B. The interface belongs to admin group RED, configured with a value of 17.
- C. The interface belongs to three different admin groups.
- D. The interface belongs to two different admin groups.
正解：D
解説：
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.
質問 # 19
Which of the following statements about enabling and using traffic engineering for Segment Routing is FALSE?
- A. Bandwidth availability as a link attribute cannot be configured.
- B. A link attribute has to be assigned to a particular interface under the [/configure router interface] context
- C. The interfaces used for SR-TE LSPs have to be added to the MPLS context.
- D. One interface can belong to an admin group and SRLG group at the same time.
正解：A
解説：
Bandwidth availability can be configured as a link attribute in SR-TE, it is used to control the amount of traffic that can be sent over a particular link.
質問 # 20
Which of the following statements about segment routing fast re-route is FALSE?
- A. 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.
- B. The parameter "max-sr-frr-labels" limits the number of labels that R-LFA can add to the data packet encapsulation.
- C. On a Nokia 7750 SR, R-LFA and TI-LFA can be enabled independently of each other.
- D. Fast re-route is a temporary fix that becomes active for a short period of time after a local network failure.
正解：C
解説：
On a Nokia 7750 SR, R-LFA and TI-LFA cannot be enabled independently; they must be enabled together. The parameter "max-sr-frr-labels" limits the number of labels that R-LFA can add to the data packet encapsulation.
質問 # 21
Based on the configuration shown for routers R1 and R10, what valid flex-algo definitions exist in the network?
- A. No valid flex-algo definitions, because of the conflicting parameters.
- B. One valid flex-algo definition, using delay as the link metric and including green links.
- C. Two valid flex-algo definitions, one uses te-metric as the link metric and includes blue links and the other uses delay as the link met includes green links.
- D. One valid flex-algo definition, using te-metric as the link metric and including blue links.
正解：C
質問 # 22
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?
- A. Value 7 - SRGB Range
- B. Value 8 - Extended Link Info
- C. Value 4 - Router Info
- D. Value 1 - Traffic Engineering
正解：B
解説：
Value 8 - Extended Link Info: This statement is not true, value 8 is not used to indicate Extended Link Info. It is used for different types of information, such as Link-Local/Remote Identifiers (LLS/RLS) Identifiers and Node SID/Adj-SID.
質問 # 23
Examine the exhibit. Based upon the configuration, which routers will the LSP go through?
- A. R1, R3, R2, R5, R4 and R6
- B. R1, R2, R4 and R6
- C. R1, R2, R5 and R6
- D. R1, R3, R4 and R6
正解：D
質問 # 24
Which of the following statements about a Segment Routing SID is FALSE?
- A. A local Node-SID can be configured as an index.
- B. A router advertises its local Node-SID as a local SRGB and an index only if it is configured as an index.
- C. A local Node-SID can be configured directly as an MPLS label.
- D. All routers do NOT need to have the same SRGB range configured.
正解：B
解説：
A router advertises its local Node-SID as a local SRGB and an index only if it is configured as an index: This statement is not true, A router will advertise its local Node-SID as a local SRGB and an index, whether it is configured as an index or not.
質問 # 25
Which of the following is NOT one of the main goals of traffic engineering?
- A. Defining traffic paths based on various constraints.
- B. Utilizing redundant links.
- C. Avoiding potential congestion points in the network.
- D. Using the shortest possible path through the network to the destination.
正解：D
質問 # 26
Which of the following statements about Segment Routing tunnels is FALSE?
- A. For a Segment Routing tunnel, an intermediate router will always forward the packet based on the best IGP path.
- B. A Segment Routing tunnel can be defined by a combination of Node-SIDs and Adjacency-SIDs.
- C. A Segment Routing tunnel can be defined by multiple Node-SIDs.
- D. A Segment Routing tunnel defined by a Node-SID uses the shortest IGP Path.
正解：A
解説：
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.
質問 # 27
Which of the following steps is NOT required when configuring IS-IS to support Segment Routing?
- A. The flooding scope of Segment Routing information.
- B. The Segment Routing Global Block range.
- C. Enable interfaces used for Segment Routing under
- D. MPLS label range reserved for Segment Routing.
正解：C
解説：
Enable interfaces used for Segment Routing under: This step is not required, enabling interfaces used for Segment Routing is not necessary as the IS-IS protocol already takes care of the flooding of the routing information.
質問 # 28
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Nokia 4A0-116 認定試験は、Nokia ルーターやスイッチに経験があり、OSPF や BGP などの IP ネットワーキングとルーティングプロトコルに精通している IT プロフェッショナルに適しています。この認定試験に合格した候補者は、セグメントルーティングに関する熟練度と、モダンなネットワークのニーズに合わせたセグメントルーティングソリューションの設計と展開能力を証明することができます。
Nokia 4A0-116（Nokia セグメントルーティング）認定試験は、Nokia セグメントルーティングソリューションの実装と管理における IT プロフェッショナルの知識とスキルを認定するグローバルに認められた資格です。この認定試験は、企業およびサービスプロバイダネットワークでセグメントルーティングソリューションを設計および展開する責任があるネットワークエンジニア、アーキテクト、管理者を対象に設計されています。
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