2024年最新の実際に出ると確認された4A0-116試験問題集と解答で4A0-116無料更新
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セグメントルーティングは、ネットワーク操作を簡素化し、ネットワークのスケーラビリティを改善するために使用される最先端のテクノロジーです。ネットワークの複雑さを減らし、ネットワークのパフォーマンスを向上させる能力により、ネットワーキング業界でますます人気が高まっています。このテクノロジーは、従来のルーティングプロトコルが面倒で非効率的になる可能性のある大規模なネットワークで特に役立ちます。
Nokiaセグメントルーティング試験としても知られるNokia 4A0-116試験は、Nokiaのセグメントルーティングテクノロジーで知識とスキルを検証したいネットワークエンジニアと専門家向けに設計されています。この試験では、セグメントルーティングの基本的な概念と、さまざまなネットワークアーキテクチャでのその実装について説明します。これは、グローバルに認識されており、業界で高く評価されているベンダー固有の認証です。
質問 # 21
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. The path calculation can be delegated to an external path computation element (PCE).
- C. The routers in the calculated path can take advantage of ECMP to better distribute the traffic load.
- D. There is a larger list of traffic-engineering constraint types that can be imposed on the LSP path.
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 # 22
Which of the following statements about a Segment Routing SID is FALSE?
- A. An Adjacency-SID does not have to be configured.
- B. Adjacency-SID values are taken from the SRGB configured for the routing protocol.
- C. A Prefix-SID can be configured directly as a label value or indirectly as an index.
- D. A Node-SID is usually associated with a router's system interface.
正解：A
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 # 23
Which of the following statements about Multi-Protocol Label Switching networks is FALSE?
- A. An LSP is a bi-directional tunnel that uses MPLS labels to forward data.
- B. MPLS uses a signaling protocol to exchange labels between routers.
- C. The data is transparently carried from end to end.
- D. An LSR forwards data based on the MPLS labels.
正解：C
解説：
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.
質問 # 24
Which of the following statements about a Segment Routing SID is FALSE?
- A. An Adjacency-SID does not have to be configured.
- B. Adjacency-SID values are taken from the SRGB configured for the routing protocol.
- C. A Prefix-SID can be configured directly as a label value or indirectly as an index.
- D. A Node-SID is usually associated with a router's system interface.
正解：A
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 # 25
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 LSPs with primary and secondary paths
- B. The ability to create cross-area TE-constrained LSP paths
- C. The ability to ensure that some LSP paths are disjoint
- D. The ability to create LSP paths with bandwidth reservation
正解：D
解説：
PCE does not have the capability to reserve bandwidth, This is a function of a Resource Reservation Protocol (RSVP) or a Label Distribution Protocol (LDP) and is done locally on the PE.
PCE can have advantages such as:
The ability to create cross-area TE-constrained LSP paths
The ability to create LSPs with primary and secondary paths
The ability to ensure that some LSP paths are disjoint
it can be used to optimize the path computation by centralizing the path calculation and by taking into account a global view of the network.
質問 # 26
Which of the following types of information is considered by a stateless PCE when it processes a new LSP path calculation request?
- A. The IGP link-state database
- B. The traffic-engineering database
- C. The operational state of existing LSP paths
- D. The amount of bandwidth reserved for each of the existing LSP paths
正解：A
質問 # 27
Which of the following statements about the Path Computation Element (PCE) is FALSE?
- A. A stateful PCE can allow LSPs to reserve bandwidth.
- B. A stateful PCE proactively monitors all the existing LSPs and triggers the necessary repairs and re-optimizations.
- C. The PCE can obtain topology and traffic-engineering information from the network using either a link-state IGP or BGP-LS.
- D. A stateless PCE can calculate cross-area traffic-engineering-constrained LSP paths.
正解：A
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 # 28
In the context of a network that includes a Path Computation Element (PCE), what is a PCC-initiated LSP?
- A. An LSP for which the initial path is calculated by the head-end router.
- B. An LSP for which the path repairs and re-optimizations must be triggered by the head-end router.
- C. An LSP whose existence and state are reported to the PCE.
- D. An LSP that needs to be explicitly configured on the head-end router.
正解：C
解説：
A PCC-initiated LSP is an LSP that is established and controlled by the PCC (Path Computation Client) which is typically a head-end router. The PCC sends LSP setup and teardown requests to the PCE and also reports the existence and state of the LSPs to the PCE. The PCE then uses this information to perform path computation and to monitor the state of the LSPs.
質問 # 29
Examine the exhibit. Based upon the configuration, which routers will the LSP go through?
- A. R1, R3, R4 and R6
- B. R1, R2, R4 and R6
- C. R1, R2, R5 and R6
- D. R1, R3, R2, R5, R4 and R6
正解：A
質問 # 30
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. An R-LFA path that would not coincide with the path after IGP re-convergence.
- B. A standard LFA path that would not coincide with the path after IGP re-convergence.
- C. A D-LFA path that would coincide with the path after IGP re-convergence.
- D. A D-LFA path that would not coincide with the path after IGP re-convergence.
正解：C
解説：
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.
質問 # 31
Which of the following list of SR-TE attributes has to be advertised among routers?
- A. Administrative groups that each link belongs to, TE metric of links, bandwidth availability of each link, SRLG that each link belongs to.
- B. Administrative groups that each link belongs to, TE metric of links, SRLG that each link belongs to, link status up/down.
- C. 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.
- D. Administrative groups that each link belongs to, TE metric of links, SRLG that each link belongs to.
正解：A
解説：
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.
質問 # 32
Based on the configuration shown for routers R1 and R10, what valid flex-algo definitions exist in the network?
- A. 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.
- B. One valid flex-algo definition, using delay as the link metric and including green links.
- C. No valid flex-algo definitions, because of the conflicting parameters.
- D. One valid flex-algo definition, using te-metric as the link metric and including blue links.
正解：A
質問 # 33
Which of the following statements about path definitions is FALSE?
- A. Once a path is associated with an LSP, it cannot be used by other LSPs.
- B. In addition to the hops defined in the path list, the head-end and tail-end routers are implicitly added.
- C. The path hops can be defined by either the system or physical interface IP address.
- D. A loose hop is one that does not have to be directly adjacent to the previous hop in the path list
正解：C
質問 # 34
Which of the following is not required to be advertised by a router participating in Segment Routing?
- A. Support for SR-MPLS for IPv4 or IPv6, or SRv6
- B. SRGB when SRv6 is configured
- C. Local Node-SID
- D. Adjacency-SIDs
正解：B
解説：
SRGB when SRv6 is configured: This is not required to be advertised, SRGB(Segment Routing Global Block) is only used for SR-MPLS and is not needed when SRv6 is configured. Instead, SRv6 uses the IANA-assigned IPv6 address space.
質問 # 35
OSPF type-10 Opaque LSAs can carry different types of advertisements. What type of advertisement carries a router's local 5RGB information?
- A. Extended Prefix Info
- B. Router Info
- C. Extended Link Info
- D. Traffic Engineering Info
正解：B
解説：
This type of advertisement carries a router's local SRGB information, which is used to distribute information about the local SID allocation range
質問 # 36
The exhibit highlights in blue the primary path of a segment going from router S to router D.
The exhibit also shows a backup path. The protected link fails and fast re-route is triggered on router S. If the backup path has been calculated using standard LFA, how many SIDs are included in the label stack of the data packet forwarded to router R1?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 37
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合格させる4A0-116試験問題は更新された42問あります：https://www.passtest.jp/Nokia/4A0-116-shiken.html
4A0-116試験問題集、テストエンジン練習テスト問題：https://drive.google.com/open?id=1SOWKWVQz8CSNXGvUqy91Ql4QHrdH25US