H12-821_V1.0-ENU試験無料問題集（1081題）「Huawei HCIP-Datacom-Core Technology V1.0 認定」

出題：1

As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in the Down state. At this time, which of the following processes will the network go through to achieve stability?

A. SWC re-elects the root port and enters the Forwarding state after Learning

B. The standby port on the SWC becomes the new root port and directly enters the Forwarding state

C. SWC re-elects the root port and directly enters the Forwarding state

D. The standby port on the SWC becomes the new root port and enters the Forwarding state after going through the Learning state

正解：B 解答を投票する

出題：2

When two routers exchange database information through DD messages, a master-slave relationship is first formed. The one with the larger DR Priority becomes the master router, and its master-slave bit is determined to be MS.

A. FALSE

B. TRUE

正解：A 解答を投票する

出題：3

Which of the following description about AS_PATH is wrong?

A. When there are two or more routes to the same destination in the router, these routes can compare the advantages and disadvantages of each other through this attribute, and the path with the longer AS_ PATHA is super-priority

B. BGP will not accept the route that contains this AS Number in the AS_PATH property

C. AS_PATH is a recognized mandatory attribute in BGP

D. AS_PATH refers to the list of ASs experienced by BGP routes in the transmitted path

正解：A 解答を投票する

出題：4

In the USG series firewall, what is the security priority of the DMZ zone?

A. 100

B. 5

C. 85

D. 50

正解：D 解答を投票する

出題：5

Which of the following descriptions of the router's LSA processing principles are correct? (Multiple choice)

A. If the received LSA is damaged, such as Checksunm error, the LSA will not be received.

B. If multiple instances of an LSA are received, the highest priority is to check whether the checksums are the same. If they are not the same, the larger one is preferred.

C. If the router receives an LSA that is not available locally, it updates the LSDB and uses DD messages to flood the LSDB.

D. If an LSA already exists in the local LSDB of the router and an updated LSA is received at this time, the local LSDB will be updated and the updated LSA will be flooded out.

正解：A,C 解答を投票する

出題：6

When the Error Code of the BGP Notification message is 2, it means that the OPEN message is wrong. Which of the following error subcodes are contained in it? (Multiple choice)

A. 3- Wrong BCP Router ID

B. 2 - Incorrect peer AS number

C. 4 - Incorrect property list

D. 1 - Unsupported version number

正解：A,B,D 解答を投票する

出題：7

Which of the following statement about OSPF neighbor information is wrong?

A. The address of DR is 10.1.1.1

B. This router is the Master

C. The router id of this router is 1.1.1.1

D. The router id of the neighbor is 2.2.2.2

正解：B 解答を投票する

出題：8

In VRRP, when the virtual router responds to an ARP request, the main router direct interface MAC address is used.

A. FALSE

B. TRUE

正解：A 解答を投票する

出題：9

The output of a device viewing LSDB is shown in the figure. According to the content analysis in the figure, what information can we obtain? (Multiple choice)

A. Router 1.1.1.1 belongs to the non-backbone area

B. Route summarization is not used in the entire OSPF domain

C. The LSA 10.1.0.4 has survived on this router for 875 seconds

D. Router 2.2.2.2 is an ASBR, but does not belong to the same area as 4.4.4.4

E. Router 4.4.4.4 belongs to Guqian District City

正解：A,C,D 解答を投票する

出題：10

Which of the following strategies or tools cannot be applied to OSPF?

A. as-path filter

B. route-policy

C. access-list

D. prefix-list

正解：A 解答を投票する

出題：11

In OSPF broadcast or NBMA network types, devices with high DR Priority may not necessarily become DR.

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：12

Which of the following BGP attributes must not be included in the Update message of a BGP route?
(Multiple choice)

A. Origin

B. Local-Preference

C. AS_PATH

D. MED

正解：B,D 解答を投票する

出題：13

During the operation of the DHCP protocol, the process from when the client applies to obtain an IP address is:
① The host sends a DHCP Request to request an IP address
② Server sends DHCP Offer message response
③ The host sends a DHCP Discover message to find DHCP
④ Server 4 Server responds with ACK response request after receiving the request

A. ③-②-①-④

B. ①-④-③-④

C. ①-②-③-④

D. ③-④-①-②

正解：A 解答を投票する

出題：14

Which of the following does not include the switch role in the stack system?

A. Slave switch

B. Standby switch

C. Main switch

D. Candidate switch

正解：D 解答を投票する

出題：15

If DR Priority is set to 0, then in the OSPF routing domain, the router is allowed to be elected as DR or BDR, but it has the lowest priority.

A. FALSE

B. TRUE

正解：A 解答を投票する

出題：16

In PIM-SM, which of the following descriptions about RP is incorrect?

A. In PIM-SM, multicast data traffic does not necessarily have to be forwarded through RFP.

B. In a multicast network, multiple C-RPs can exist at the same time to improve the high availability of the RP.

C. All multicast streams in the shared tree are forwarded to the receiver through the RP.In EPIM-SM, different RP addresses can be configured for different multicast groups to achieve traffic load sharing.

D. For a multicast group, there can be multiple RP addresses at the same time to improve network reliability.

正解：D 解答を投票する

出題：17

Which of the following descriptions of route reflectors in BGP are correct? (Multiple choice)

A. If the route comes from an EBGP peer, the reflector is sent to all client and non-client IBGP peers

B. Route reflector technology can avoid the problem of poor scalability caused by IBGP full interconnection in the same AS

C. When a route reflector performs route reflection, it only reflects its own optimal BGP route.

D. In the route reflector, in addition to RR, Client also needs to be configured. At the same time, all Clients must know the existence of RR.

正解：A,B,C 解答を投票する

出題：18

BFD determines whether a fault has occurred by periodically detecting packets. It is a fast fault detection mechanism that relies on routing protocols.

A. FALSE

B. TRUE

正解：A 解答を投票する

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