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

When creating a security zone in the USG firewall, which of the following is the default security priority?

A. The security priority is 5

B. The security priority is 85

C. The security priority is 100

D. The security priority is 0

E. When creating a new security area, if the security priority is not set, the security priority will be empty

F. The security priority is 50

正解：E 解答を投票する

出題：2

IGMP SSM Mapping statically binds the multicast source to the multicast group, so that group members of IGMPv1 and IGMPv2 can also access the SSM multicast network. Which of the following descriptions about IGMP SSM Mapping is wrong?

A. IGMP SSM Mapping does not process IGMPv3 report messages. In order to ensure that hosts running any version of IGMP on the same network segment can get SSM services, it is necessary to run IGMPv3 on the multicast router interface connected to the network segment where the member hosts are located.

B. If the IGMP SSM Mapping function is not enabled, neither IGMPv1 nor IGMPv2 support the deployment of multicast in SSM mode

C. Statically configure the mapping rules of the SSM address on the IGMP querier, and map the group joining information in the IGMPv1 or IGMPv2 member report to the group leaving information

D. The address of the multicast group of SSM is 232.0.0.0~232.255.255.255

正解：C 解答を投票する

出題：3

Which of the following is not the main function of NDP?

A. Neighbor Status Tracking

B. Path MTU Discovery

C. Duplicate address detection

D. Address

正解：B 解答を投票する

出題：4

Which of the following descriptions about the reset ip ip-prefix command is correct?

A. This command enables the router to recall the prefix list during routing protocol injection

B. This command can re-match routing entries

C. This command can clear the statistical data of IPv4 address prefix list

D. This command enables the router interface to recall the prefix list during traffic filtering (Traffic-Filter)

正解：C 解答を投票する

出題：5

Which of the following reasons may prevent OSPF neighbor relationships from being established?
(Multiple choice)

A. The two directly connected interfaces use the p2p network type, but the IP packet with the destination IP address 224.0.0.6 is refused to be transmitted.

B. The two directly connected interfaces use different network types.

C. Two routers are configured with the same Router ID.

D. The dr-priority of the two directly connected interfaces is set to 0.

E. The sending intervals of Hello messages between the two routers are inconsistent.

F. The two routers are set with different Process IDs

正解：B,C 解答を投票する

出題：6

When the Hold Time supported by two devices running BGP is inconsistent, the neighbors will negotiate to use the smaller time as the Hold Time interval.

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：7

Which of the following descriptions of MAC address spoofing attacks is incorrect?

A. MAC address spoofing attacks will cause the switch to learn the wrong mapping relationship between MAC addresses and IP addresses.

B. An attacker can implement a MAC address spoofing attack by sending a data frame with a forged source MAC address to the switch.

C. A MAC address spoofing attack will cause the data that the switch wants to send to the correct destination to be sent to the attacker.

D. MAC address spoofing attacks mainly utilize the switch MAC address learning mechanism.

正解：A 解答を投票する

出題：8

SSH negotiates a variety of algorithms during its implementation. So which of the following are included in the algorithm categories used by SSH? (Multiple choice)

A. Host public key algorithm for digital signatures and authentication

B. Shortest Path Algorithm for Determining the Shortest Communication Path

C. Key exchange algorithm used to generate session keys

D. Algorithms for data integrity protection

E. Algorithm used for data encryption

F. Spanning tree algorithm to prevent communication loops

正解：A,C,D,E 解答を投票する

出題：9

Server-Map is generated based on which of the following sets of parameters?

A. Source and destination MAC addresses, source and destination port numbers, and protocol types

B. Source and destination MAC addresses, source and destination IP addresses, and protocol types

C. Source and destination IP addresses, source and destination port numbers, and protocol types

D. Source and destination MAC addresses, source and destination IP addresses, and source and destination port numbers

正解：C 解答を投票する

出題：10

Which of the following descriptions about the recognized attributes in BGP are correct? (Multiple choice)

A. Recognized attributes are divided into two types: recognized mandatory compliance and optional transition

B. It is recognized that any attribute can be recognized by all BGP routers, but it is not required to exist in the Update message

C. BGP must recognize all recognized attributes

D. The recognized mandatory attribute is recognized by all BP routers and must exist in the Update message

正解：B,C,D 解答を投票する

出題：11

By default, the sending interval of BFD packets is ______ milliseconds, the receiving interval is
______ milliseconds, and the local detection is ______ times.

正解：

1000|1000|3

出題：12

IPv6 address 2001:FC1A:8BAD:0112:0000:1200:0000:0001/64 is abbreviated to
2001:FC1A:8BAD:112:0:1200::1/64

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：13

As shown in the figure, four Huawei switches have been running and configured with the MSTP protocol. Now SW3 needs to be set as the root bridge of Instance 10. Which of the following commands can be used to achieve this?

A. stp root primary

B. stp instance 10 root primary

C. stp instance 10 priority 4096

D. stp vlan 10 root primary

正解：B 解答を投票する

出題：14

The network administrator of a company checks the FIB of the router. What fields does the FIB contain? (Multiple choice)

A. Protocol

B. Destination/Mask

C. Cost

D. TimeStamp

正解：B,D 解答を投票する

出題：15

Please pair the following IGMP versions with the corresponding working mechanisms.

正解：

出題：16

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：17

IS-IS overload flag refers to the OL field in the LSP message. After setting the overload flag on a device, other devices will not use this device for forwarding when calculating SPF, and will only calculate the direct route of the device.

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：18

As shown in the figure, network administrator A can control the path of traffic entering AS100 after modifying the MED value of the routing entries sent to R2 on the R1 router through the routing policy.

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：19

Regarding the description of the routing tool, which of the following statement is wrong?

A. route-policy can only match routes and data packets, and cannot be used to modify routing attributes or data packet forwarding behavior

B. Prefix list (ip-prefix) matching object is the destination address of routing information

C. The access control list (ACL) is used to match the IP routing information or the address of the data packet

D. as-path-filter is used to match the AS-PATH attribute in BGP routing information, so it can only be used to filter BGP routes

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」