Huawei H12-821_V1.0-ENU Actual Free Exam Questions & Community Discussion

Exam Code/Number: H12-821_V1.0-ENU
Exam Name/Title: HCIP-Datacom-Core Technology V1.0
Certification Provider: Huawei
Corresponding Certification: HCIP-Datacom

Exam Questions: 1081
Updated On: May 31, 2026

Question #37

By default, VRP requires manual operation to resend update messages to the neighbor when the BGP command export routing policy (route-policy) is changed.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: B Vote an answer

Question #38

Which of the following descriptions of BGP features are correct? (Multiple choice)

A. Able to carry large amounts of routing information and support large-scale networks

B. Periodic routing updates

C. Use TCP as the transport layer protocol

D. Can support MPLS/VPN applications and deliver customer VPN routes

Discussion 0

Correct Answer: A,C,D Vote an answer

Question #39

Now you need to add AC1 with the source interface IP address of 10.1.200.100 and AC2 with the source interface IP address of 10.1.200.200 to the Huawei roaming group. Their configuration is as shown below. Then the command () should be configured in the space.

Discussion 0

Correct Answer:

member

Question #40

In BGP, the community attribute is an optional transitional attribute, which is a routing label and is used to simplify the execution of routing policies.
It is divided into custom community attributes and public community attributes, so which of the following items belong to public community attributes? (Multiple choice)

A. Internet

B. No_Export Subconfed

C. No_Advertise

D. No_Export

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question #41

Once the BGP connection is established, without load balancing configured, the BGP Speaker only advertises the best route in the BGP routing table to the neighbor.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question #42

As shown in the figure, the network layers of R1 and R2 are directly connected, and there are layer-2 transmission devices S71 and S72 in the middle of the link.

Now the user hopes that the devices at both ends can quickly sense the failure of the intermediate link, thereby triggering rapid route convergence, which of the following detection mechanisms should be configured?

A. Layer 3 physical link single-hop detection

B. Linkage between BFD status and interface status

C. BFD multi-hop detection

D. BFD single-hop detection layer 2 link

Discussion 0

Correct Answer: C Vote an answer

Question #43

Regarding BGP Local-Preference, which of the following descriptions are correct? (Multiple choice)

A. The default value of BGP route Local-Preference is 100

B. In the BGP route selection rules, Preferred-value has a higher priority than Local-Preference, that is, Preferred-Value is compared preferentially

C. In the BGP route selection rules, the priority of MED is higher than that of Local-Preference, that is, priority is given to comparing MED

D. The default value of BGP routing Local-Preference is 0

Discussion 0

Correct Answer: A,B Vote an answer

Question #44

Which of the following fields is not included in the LS Request message?

A. Link state type

B. Database Description Sequence Number

C. Advertising Router

D. Link State ID

Discussion 0

Correct Answer: B Vote an answer

Question #45

As shown in the figure, OSPF is enabled on all interfaces of the router. The cost value of the link is marked in the figure. Interface 0 of R2 Loopback0 is advertised in area 0. In area 1, R2 and R3 will transmit 10.0 in the form of Type3 LSA. 2.2/32 routing information.

A. TRUE

B. FALSE

Discussion 0

Correct Answer: A Vote an answer

Question #46

As shown in the figure, the management VLAN of the LAN is VLAN 10, the AP obtains an IP address through DHCP, and the network segment is 10.1.1.0/24 AP, AC and AR are DHCP client, DHCP relay device and DHCP server respectively.

Which of the following is correct about the configuration of the DHCP relay device and the DHCP server?
(Multiple choice)

A. [AC] dhcp server group AP
[AC-dhcp-server-group-AP] dhcp-server 172.21.1.2
[AC-dhcp-server-group-AP] quit
[AC] interface Vlanif 10
[AC-Vlanif10] dhcp select relay
[AC-Vlanif10] dhcp relay server-select AP
[AC-Vlanif10] quits

B. [Ac]dhcp server group AP
[AC-dhcp-server-group-AP] dhep-server 10.1.1.2
[AC-dhcp server group-AP] quit [AC] interface Vlanif 10
[AC-V1anif10] dhcp select relay
[AC-Vlanif10] dhcp relay server-select AP
[AC-Vlanif10] said

C. [AR] ip pool AP [AR-ip pool-AP] network10.1.1.0 mask 24
[AR-ip-pool-AP] gateway-list 10.1.1.2
[AR-ip-pool-AP] excluded ip-address 10.1.1.1
[AR-ip-pool-AP] quit
[AR] interface GigabitEthernet 0/0/1
[AR-GigabitEthernet0/0/1] dhcp select global
[AR-Gigabi tEthernet0/0/1] quit
[AR] ip route-static 10.1.1.0 255.255.255.0 172.21. 1.1

D. [AR] ip pool AP
[AR-ip-pool-AP] network 172.21.1.0 mask 24
[AR-ip-pool-APJ gateway-list 172.21.1.2
[AR-ip-pool-AP] excluded-ip-address 172.21.1.1
[AR-ip-pool-AP] quit
[AR] interface GigabitEthernet 0/0/1
[AR-GigabitEthernet0/0/1] dhcp select global
[AR-GigabitEthernet0/0/1] quit
[AR]ip route-static 10.1.1.0 255.255.255.0 172.21.1.1

Discussion 0

Correct Answer: A,C Vote an answer

Question #47

The four routers run IS-S and have established adjacency. The area numbers and router levels are marked in the figure. Which of the following statements is correct?

A. Both R2 and R3 will generate Level-1 LSPs with ATT set.

B. R2 and R3 learn default routes from each other, and a routing loop occurs in the network.

C. Both R2 and R3 will generate LSPs of Level 1-2 with ATT set.

D. R1 does not have the LSP generated by R4, so R1 can only communicate with R4 through the default route.

Discussion 0

Correct Answer: A Vote an answer

Question #48

In SSM, which version of IGMP needs to be used?

A. IGMPv2

B. IGMPv4

C. IGMPv1

D. IGMPv3

Discussion 0

Correct Answer: D Vote an answer

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