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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 |
| Exam Number: | H12-891_V1.0 |
| Exam Duration: | 90 minutes |
| Exam Price: | 300 USD |
| Related Certifications: | HCIE-Datacom Huawei Certified ICT Expert (HCIE) |
| Passing Score: | 600/1000 |
| Available Languages: | CHS, ENU |
| Exam Format: | Short Response Item, Drag and drop item, True or false, Multiple-answer Question, Single-answer Question |
| Sample Questions: | Huawei H12-891_V1.0 Sample Questions |
| Exam Way: | Pearson VUE or Prometric |
| Pre Condition: | It is recommended to pass HCIP-Datacom-Core Technology. 5 years of relevant work experience is suggested. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/#/cert/technical-cert-details?certId=1223102600645939200&contentId=1223107831750217728 |
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Huawei H12-891_V1.0 Certification Exam is intended for network engineers, network architects, and network managers who have several years of experience in designing, implementing, and managing complex data communication networks. Candidates who pass the exam demonstrate a deep understanding of network design principles, network security technologies, network management tools, and network optimization techniques. HCIE-Datacom V1.0 certification is highly valued by employers and can help candidates advance their careers in the field of data communication networks.
NEW QUESTION # 288
A 32-bit MPLS header consists of a 20-bit label used for packet forwarding, a 3-bit EXP field that identifies the IP packet priority, a 1-bit bottom-of-stack flag that identifies the last label, and an 8-bit TTL field. Which statement regarding the TTL field is correct?
Answer: C
Explanation:
TheMPLS headerconsists of:
Label (20 bits)- Label value used for forwarding.
EXP (3 bits)- QoS field (Class of Service).
S bit (1 bit)- Bottom-of-Stack indicator.
TTL (8 bits)-Time-to-Live, similar to the TTL field in the IP header.
Function of TTL in MPLS:
It is used toprevent infinite loops.
Every LSRdecrementsthe TTL by 1.
When TTL reaches0, the packet isdiscarded.
This mirrors the behavior of IP TTL and ensures loop prevention in MPLS networks.
Correct answer: D. This field is used to prevent packet forwarding loops, similar to the TTL field in an IP header.
Reference:Huawei HCIE-Datacom V1.0 Study Guide -Chapter: MPLS Header Format and ForwardingSection: MPLS TTL Field Function
NEW QUESTION # 289
Network administrator A wants to view the BGP peer status of R2. The BGP peer status of R2 is shown in this figure. Obtain the following information: R2 resides in AS _____ (Enter only digits. Do not add punctuations or spaces.)
Answer:
Explanation:
102From the command output:[R2] display bgp group inRemote AS: 102...Type: internal...Peer Members:
10.1.3.3 4 10210.1.4.4 4 10210.1.5.5 4 102Key indicators:"Remote AS: 102""Type: internal"- This tells us that the BGP session isiBGP.IniBGP, both thelocalandremoterouters are in thesame AS.Since all remote peers (10.1.3.3, 10.1.4.4, 10.1.5.5) are inAS 102, and the session type isinternal, that means R2 mustalsobe in AS
102.Correct answer: 102In Huawei BGP implementation:If the BGP peer type is"internal", thelocal router and peer router are in the same AS.TheRemote ASshown in the display bgp group command refers to the AS number configured for the peer.Since the session type isinternal, thelocal AS = remote AS.
Reference:Huawei HCIE-Datacom V1.0 Study GuideChapter:BGP Configuration and TroubleshootingSection:BGP Peer Types and AS Numbers
NEW QUESTION # 290
As shown in the figure, all routing diagrams declare the loopback address in OSPF, where R2 does not return the address is 10022/32, it is advisable to tell AraD. The R3 loopback address is 10033/321001.1.0/24 external routing, in order to reduce the burden on the RI router, the configuration command is as follows:( Multiple choice questions)[Rlip ip-prefix 1 permit 001.1.024 [RLIJospfl [RL-ospf-1]filter-policy ip-prefix l import please ask the following description is correct?
Answer: A,C,D
NEW QUESTION # 291
Which of the following statements about SR-MPLS Policy candidate paths are correct?
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed
✔ SR-MPLS Policy candidate paths are used for flexible path selection and load balancing in Segment Routing (SR-MPLS) networks.
✔ Correct Statements:
✅ (A) Each candidate path can have multiple segment lists, each with its own weight for load balancing.
✅ (B) Load balancing is supported both between candidate paths and within segment lists.
✅ (C) An SR-MPLS Policy can contain multiple candidate paths, each with a preference value.
✅ (D) The candidate path with the highest preference is selected as the primary path.
📖 Reference: Huawei HCIE Datacom - SR-MPLS Policy Path Selection
NEW QUESTION # 292
Python Paramiko implements the SSH protocol. In the Python Paramiko module, which of the following classes is used to create SFTP sessions and perform remote file operations?
Answer: B
Explanation:
Comprehensive and Detailed
✔ Paramiko is a Python library that provides SSH and SFTP functionality.
✔ The SFTPClient class is specifically designed for SFTP (Secure File Transfer Protocol) operations.
✔ How It Works:
A Transport session is established using Transport().
An SFTP session is created using SFTPClient.from_transport().
File operations (upload/download) are performed via SFTP methods.
✔ Why Not Other Options?
❌ (A) Packetizer class → Handles low-level SSH message processing, not SFTP.
❌ (C) Channel class → Creates SSH channels, not SFTP sessions.
❌ (D) Transport class → Establishes SSH connections, but does not perform file operations.
📖 Reference: Huawei HCIE Datacom - Python Paramiko and SFTP Implementation
NEW QUESTION # 293
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