H12-821_V1.0無料問題集「Huawei HCIP-Datacom-Core Technology V1.0」

質問 1

A route-policy can have multiple nodes, and each node can have multiple if-match and apply clauses. Which of the following statements are false?

（A）The operator between if-match clauses under a node is OR.

（B）The operator between nodes is AND.

（C）The operator between if-match clauses under a node is AND.

（D）The operator between nodes is OR.

正解：A、B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

See the network shown in the following figure.

R1 and R2 run IS-IS and establish an adjacency. IS-IS is enabled on Loopback0 of R2 but disabled on Loopback3 of R2. The configurations shown in the figure are performed in the IS-IS process of R2. Which of the following statements are true?

（A）The routing table of R1 does not contain the routes 10.0.2.2/32 and 10.0.2.3/32.

（B）The routing table of R1 contains the route 10.0.2.3/32.

（C）The routing table of R1 contains the route 10.0.2.2/32.

（D）The routing table of R1 does not contain the route 10.0.2.3/32.

正解：C、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

To overcome the disadvantages of STP, RSTP changes the format of configuration BPDUs. Which of the following fields in STP BPDUs is used to specify the port role?

（A）Flags

（B）BPDU Type

（C）PVI

（D）PID

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

Which of the following LSAs are advertised only within a single area?

（A）Router LSA

（B）Network LSA

（C）AS External LSA

（D）Summary LSA

正解：A、B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

On an OSPF network, if two routers with the same router ID run in different areas and one of the routers is an ASBR, LSA flapping occurs.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

On an IS-IS network, two directly connected routers establish a neighbor relationship through the three-way handshake mechanism by default, regardless of whether the network type is P2P or broadcast.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 7

Multicast applies to any point-to-multipoint data transmission. Which of the following types of application data can be forwarded in multicast mode?

（A）Livestreaming

（B）Real-time audio conferencing

（C）Data warehouse

（D）Network TV

正解：A、B、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

The BFD (Bidirectional Forwarding Detection) state machine implements a three-way handshake for BFD session setup or teardown. Which of the following session states are involved in BFD session setup?

（A）Init

（B）AdminDown

（C）Up

（D）Down

正解：A、B、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 9

Which of the following is used as the destination port for single-hop BFD?

（A）UDP port 3784

（B）TCP port 4784

（C）TCP port 3784

（D）UDP port 4784

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

In IP multicast transmission, packets are transmitted from a source to a group of receivers. Which of the following statements are true about IP multicast technologies?

（A）Compared with broadcast, IP multicast effectively conserves network bandwidth.

（B）Compared with broadcast, IP multicast prevents information flooding.

（C）Compared with unicast, IP multicast increases the load of information sources.

（D）Compared with unicast, IP multicast improves information transmission security.

正解：A、B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

ACLs are a common matching tool in routing policies. An ACL can be configured on a router to match routes.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 12

The BFD Echo function checks the connectivity of the forwarding link by looping back packets. Which of the following statements are true about this function?

（A）In the BFD Echo function, the device uses the IP address of the outbound interface as the source IP address by default.

（B）When configuring a BFD session supporting the BFD echo function, you need to configure both the local and remote discriminators.

（C）If URPF is enabled on the peer end, BFD packets may be incorrectly discarded on the peer end.

（D）The BFD Echo function applies only to single-hop BFD sessions.

正解：A、C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

H12-821_V1.0 無料問題集「Huawei HCIP-Datacom-Core Technology V1.0」

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