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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIE-Datacom V1.0 Written Exam |
| Exam Number: | H12-891_V1.0 |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60-70 |
| Exam Duration: | 120 minutes |
| Exam Format: | Single choice questions, Multiple choice questions |
| Exam Price: | USD 300 (approx.) |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIP-Datacom HCIE-Datacom HCIA-Datacom |
| Available Languages: | English, Chinese |
| Recommended Training: | Huawei Learning Platform HCIE-Datacom Official Training |
| Exam Registration: | Huawei Talent Certification Platform Huawei Certification Exam Registration |
| Sample Questions: | Huawei H12-891_V1.0 Sample Questions |
| Exam Way: | Computer-based online or authorized test center exam (via Huawei certification system / Pearson VUE where applicable). |
| Pre Condition: | Recommended to hold HCIP-Datacom certification or equivalent knowledge before attempting HCIE-Datacom exam. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/#/cert/overview |
>> Test H12-891_V1.0 Objectives Pdf <<
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Upon passing the Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam, candidates will be recognized as certified professionals in the field of data communication, and will have access to a range of career opportunities in this growing industry. They will also gain recognition and respect from their peers, and will be able to contribute to the development and growth of their organization.
NEW QUESTION # 10
The following statement about a cross-domain MPLS VPN is mischaracteristic?
Answer: A,C
NEW QUESTION # 11
Which levels are common in the OSI reference model and the ICP/IP model? ( Multiple choice question)
Answer: E,F
NEW QUESTION # 12
As shown in the following topology, EBGP is running between ASI0O0, AS.203, AS.30, AS8400, and the neighbor relationship has been established as RECEIVed by AS4O0 When AS1OO issues a 1..11/2 CIDR segment BGP route, the path order recorded in the ASPath attribute is correct
Answer: D
NEW QUESTION # 13
In Huawei SD-WAN Solution, which of the following tunneling technologies is used to establish data channels?
Answer: D
Explanation:
Huawei SD-WAN establishes secure tunnels between SD-WAN edge devices (CPEs, AR routers, and controllers) using tunneling protocols.
# B. GRE over IPsec (Correct Answer)
* GRE (Generic Routing Encapsulation) over IPsec is the primary tunneling method used in Huawei SD-WAN.
* GRE provides multi-protocol encapsulation, while IPsec ensures encryption and security.
* Used for secure communication over public WAN links (e.g., the internet, LTE, MPLS, etc.).
NEW QUESTION # 14
Drag theIPsec functionson the left to the corresponding function description on the right.
Answer:
Explanation:
A screenshot of a computer AI-generated content may be incorrect.
IPsec (Internet Protocol Security) provides secure communication over IP networks through several essential functions. Let's explain each function and its purpose:
1. Data Origin Authentication:
Description:The receiver verifies the identity of the sender.
This function ensures that the data received actually comes from the claimed source.
IPsec achieves this usingIKE (Internet Key Exchange)anddigital signatures.
TheAuthentication Header (AH)andEncapsulating Security Payload (ESP)support authentication.
Use Case:Verifying that a message claiming to be from a specific IP address is genuinely from that source.
2. Data Encryption:
Description:The sender encrypts the data, and the receiver decrypts the data.
Encryption ensuresdata confidentialityby transforming readable data (plaintext) into unreadable data (ciphertext).
Only the intended receiver with the correct decryption key can convert the ciphertext back to plaintext.
Common encryption algorithms used includeAES (Advanced Encryption Standard)andDES (Data Encryption Standard).
Use Case:Protecting sensitive data transferred over public networks.
3. Data Integrity:
Description:The receiver verifies received data to determine whether the data has been tampered with.
Ensures that the data was not altered during transmission.
Uses cryptographichash functions(e.g.,SHA-1, SHA-256) to generate amessage digest.
The digest is sent with the data and verified on the receiving side.
Use Case:Detecting any changes made to the data packet during transmission.
4. Anti-Replay:
Description:The receiver rejects duplicate data packets.
Prevents attackers from capturing packets and replaying them later.
Usessequence numbersto detect replayed or duplicated packets.
The receiver keeps asliding windowof sequence numbers to compare incoming packets.
Use Case:Blocking malicious actors from sending previously intercepted packets to disrupt communication.
Why This Mapping Is Correct:
The functions and descriptions are aligned based on the core concepts of IPsec and the roles they play in ensuring secure data transmission.
Each function addresses a specific aspect of security:authentication, confidentiality, integrity, and replay protection.
References:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: IPsec Configuration Guide
RFC 4301 - Security Architecture for IPsec
HCIE-Datacom Knowledge Base: IPsec VPN Concepts
NEW QUESTION # 15
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