Download HCIE-Datacom V1-0.H12-891.ExamTopics.2025-05-27.40q.vcex
| Vendor: | Huawei |
| Exam Code: | H12-891 |
| Exam Name: | HCIE-Datacom V1-0 |
| Date: | May 27, 2025 |
| File Size: | 812 KB |
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Demo Questions
Question 1
For telemetry data push, data can be transferred between devices and collectors using the TLS protocol. TLS must be configured for data encryption if data is pushed based on gRPC.
- True
- False
Correct answer: A
Question 2
The SBFD state machine running on the initiator has only the up and down states and can alternate only between the two states.
- True
- False
Correct answer: B
Question 3
Portal authentication is recommended for scenarios with high mobility and numerous terminal types, such as shopping malls and supermarkets. MAC address authentication is recommended for dumb terminals that do not support Portal authentication, such as printers, fax machines, and IP phones.
- True
- False
Correct answer: B
Question 4
After the network administrator of a company uploads the Python script demo.py of the OPS to a network device, which of the following commands can be used to run the script?
- (1) ops install file demo.py (2) ops execute python demo.py
- (1) ops install file demo.py (2) ops run python demo.py
- (1) ops set file demo.py (2) ops execute python demo.py
- (1) ops set file demo.py (2) ops run python demo.py
Correct answer: A
Question 5
VXLAN identifies tenants using VNIs, which are 24 bits long. A tenant can have one or more VNIs, and VXLAN supports a maximum of 12 million tenants.
- True
- False
Correct answer: B
Question 6
When you create a fabric on iMaster NCE-Campus, which of the following parameters need to be set in the fabric global resource pool?
- VLAN
- Interconnection IP address
- VXLAN network identifier
- Bridge domain
Correct answer: ABC
Question 7
Telemetry static subscription has been configured on a device, and the telemetry sampling path is huawei-devm:devm/cpuInfos/cpuInfo. To write the script that implements telemetry static subscription and configures gRPC-based data push, which of the following .proto files are mandatory?
- huawei-grpc-dialin.proto
- huawei-telemetry.proto
- huawei-grpc-dialout.proto
- huawei-devm.proto
Correct answer: BD
Question 8
In the inter-AS MPLS L3VPN Option B solution, the RT filtering function must be disabled on ASBRs. Otherwise, VPNv4 routes cannot be transmitted.
- True
- False
Correct answer: B
Question 9
In the SSH algorithm negotiation phase, the SSH server and client exchange the list of algorithms that hey support. The list of symmetric encryption algorithms of the SSH server is as follows: aes256-ctr, aes192-ctr, aes128-ctr, and aes256-cbc. The list of symmetric encryption algorithms of the SSH client is as follows: aes128-ctr, aes192-ctr, aes256-ctr, and aes256-cbc. Which of the following symmetric encryption algorithms can be used by both the SSH server and client?
- aes256-ctr
- aes192-ctr
- aes128-ctr
- aes256-cbc
Correct answer: C
Question 10
SR-MPLS is enabled on all routers. The label information encapsulated by R1 into a data packet is shown in the figure. Which of the following MPLS labels is carried in the data packet when it is sent from R2 to R4?
- 2032
- 2024
- 2046
- No label
Correct answer: C
Question 11
On a medium-sized network configured with BGP, two RRs are typically deployed to improved BGP RR reliability. Typically, the cluster IDs of the two RRs are set as the same. Which of the following is the reason for that?
- To prevent loops.
- To prevent sub-optimal routes.
- To prevent memory insufficiency caused by receiving too many routes on RRs.
- To prevent memory insufficiency caused by receiving too many routes on clients.
Correct answer: B
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