4A0-112受験方法、4A0-112復習テキスト

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ノキアのIS-ISルーティングプロトコルについてさらに学びたいですか？その場合、ノキア4A0-112認定試験を受けてみることを検討してみてください。この試験は、現在多くのネットワークで使用されている人気のルーティングプロトコルであるIS-ISの知識と理解をテストするために設計されています。この試験に合格することで、この分野の専門知識を証明し、ネットワーキング業界でのキャリアの機会を向上させることができます。

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4A0-112復習テキスト、4A0-112合格率書籍

あなたは4A0-112試験資料を使うときから、4A0-112試験資料がいい商品だと感じます。あなたは4A0-112試験資料の使用者だけでなく、私たちの友達です。私たちの目標は全力を尽くしてあなたに質が高い4A0-112試験資料といいサービスを提供することです。私たちはあなたが4A0-112試験に合格することを保障します。そして、よく勉強すれば、きっとパスします。

ノキア4A0-112試験は、ネットワークの概念やプロトコルに強固な基盤を必要とする厳しい認定試験です。候補者は、ルーティングやスイッチング技術の深い理解、ネットワークセキュリティや管理プラクティスの確固たる理解が必要です。また、ノキアのネットワーキングソリューションでの経験があり、Nokia Service Routerポートフォリオを含む同社の製品にも精通している必要があります。

ノキア4A0-112試験は、複数選択式の問題から構成されたコンピュータベースのテストです。試験を完了するために一定時間が与えられるため、試験中に時間を効果的に管理し、ペースを調整することが重要です。試験を完了した直後に結果が表示され、合格すれば、ノキアIS-ISルーティングプロトコル認定を受けることができます。

Nokia IS-IS Routing Protocol 認定 4A0-112 試験問題 (Q30-Q35):

質問 # 30
Which of the following definitions best describes route redistribution?

A. It is the process of controlling which route advertisements received from routing peers are accepted and/or deciding which locally known prefixes are advertised to routing peers.
B. It is the process of passing routing information from one routing domain to another, which usually means from one routing protocol to another.
C. It is the process of redirecting packets to be processed by an intermediate network function before allowing them to be forwarded to their intended final destination.
D. It is the process of deciding at line-rate speed which packets will be dropped and which ones will be forwarded.

正解：B

解説：
Route redistribution is the process of sharing routing information between different routing protocols or routing domains. For example, a router might redistribute routes learned via OSPF into a BGP routing table or vice versa. This enables routers to exchange routing information even when they are using different routing protocols.

質問 # 31
Refer to the exhibit.

Routers R1 through R4 are running an IGP in such a way that they have each other's system IP addresses in their routing tables. A static route is configured on router R1 so that it can reach subnetwork 10.4.100.0/24. The network administrator decides to use an indirect static route, as shown in the diagram. However, pinging the server from router R1 fails. What may be the problem in this case?

A. Router R1 drops the echo request because address 10.10.10.3 does not belong to an adjacent router.
B. The echo request arrives at the server but there is no path for the echo response to return to router R1.
C. Router R3 drops the echo request because it does not have subnet 10.4.100.0/24 in its routing table.
D. Router R2 drops the echo request because it does not have subnet 10.4.100.0/24 in its routing table.

正解：B

解説：
The static route configured on router R1 uses an indirect next-hop, which is 10.10.10.3 (R3). While the echo request from R1 reaches the server through the IGP, the problem lies in the return path for the echo response.
The route 10.4.100.0/24 is reachable through R3, but there is no reciprocal route in R3's routing table that allows the response to flow back towards R1. This results in a failure to return the echo response to R1, causing the ping to fail.

質問 # 32
Refer to the exhibit.

All routers in the diagram are running a link-state routing protocol. Before the link failure, all routers have operational adjacencies with each other and there is a BFD session between routers R1 and R3. After the link failure, which of the following affects the routing protocol's convergence time?

A. The value of the BFD transmit interval, receive interval and multiplier settings on routers R1 and R3.
B. The value of the routing protocol hello timers on routers R1 and R3.
C. The time taken by the switches to detect that the physical ports are down.
D. The value of the Ethernet hello timers on the switches.

正解：A

解説：
BFD (Bidirectional Forwarding Detection) is used to detect link failures quickly and helps improve convergence time in link-state routing protocols. The BFD session between routers R1 and R3 allows them to detect the failure of the link between them more quickly than the regular routing protocol hello timers. The transmit interval, receive interval, and multiplier settings determine how fast BFD detects a failure and triggers the routing protocol to converge, which directly impacts the convergence time.

質問 # 33
A router running a link-state routing protocol detects that one of its neighbors is no longer connected to it. The router generates a new link-state advertisement to inform other routers of the topology change. Which of the following is NOT an action that is triggered by this event?

A. If a router receives the new link-state advertisement, it acknowledges it, stores it, and forwards it to its own neighbors.
B. Every router that receives the new link-state advertisement runs the SPF algorithm to recalculate its shortest-path tree and its forwarding database.
C. If a router receives multiple copies of the new link-state advertisement, it will simply ignore all copies received after the first one.
D. Every router that receives the new link-state advertisement updates its age field before forwarding it.

正解：D

解説：
When a router receives a link-state advertisement (LSA), it does not update the age field before forwarding it. The age field in an LSA is typically updated by the originating router or during the process of forwarding the LSA within the network. Routers do not modify the age field upon receiving and forwarding an LSA.

質問 # 34
A router is trying to establish an IS-IS adjacency with the DIS on a broadcast link. What event causes the adjacency to change from "Initializing" to "UP"?

A. Receiving a CSNP packet from the DIS acknowledging the last transmitted LSP.
B. Receiving the last LSP requested from the DIS.
C. Receiving the first CSNP packet from the DIS that lists the LSPs in the DIS's link-state database.
D. Receiving a Hello packet from the DIS that contains the local router's own MAC address in the neighbor list.

正解：C

解説：
The process of establishing an IS-IS adjacency on a broadcast link involves several steps, and the transition from the Initializing state to the UP state occurs when both routers exchange sufficient information to confirm they have a consistent view of the link-state database.
The CSNP (Complete Sequence Number PDU) packet is used to advertise the list of LSPs in the router's link-state database. When a router receives the first CSNP from the DIS (Designated Intermediate System) that lists the LSPs in the DIS's database, it indicates that the router has enough information to establish the adjacency and synchronize its database.

質問 # 35
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4A0-112受験方法、4A0-112復習テキスト

4A0-112復習テキスト、4A0-112合格率書籍

Nokia IS-IS Routing Protocol 認定 4A0-112 試験問題 (Q30-Q35):