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| Section | Weight | Objectives |
|---|---|---|
| Network Automation Technologies and Practice | 17% | - Automation Foundation
|
| WAN Interconnection Network Planning and Deployment | 8% | - WAN Service Optimization
|
| Bearer WAN Planning and Deployment | 15% | - Bearer Network Architecture
|
| Campus Network Planning and Deployment | 23% | - Campus Network Architecture Design
|
| Advanced Routing and Switching Technologies | 37% | - Advanced Switching Technologies
|
>> H12-891_V1.0 Study Dumps <<
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NEW QUESTION # 22
Fill in Blank
When static IPsec VPN is used for WAN interconnection in the Huawei CloudCampus Solution, the AP, Router, and _____ can be used as egress devices. (Use full spelling with the first letter capitalized.)
Answer:
Explanation:
Switch
Explanation:
In Huawei's CloudCampus Solution, when static IPsec VPN is used for WAN interconnection, the following devices are capable of acting as egress gateways for encrypted tunnels:
Access Point (AP)
Router
Switch
This is based on Huawei's CloudCampus architecture, where all three device types can support VPN tunnel termination depending on the deployment size and use case.
Huawei Datacom Reference:
"In static IPsec VPN networking scenarios, egress devices can be APs, Routers, or Switches depending on the deployment model. This allows flexibility for small, medium, and large-scale branches." (Source: HCIE-Datacom V1.0 Training Guide - WAN Interconnection and VPN Chapter)
NEW QUESTION # 23
To obtain thetoken IDofiMaster NCE, you need to send anHTTP requestusing the followingPython codeto invoke aniMaster NCE RESTful API:
Which of the following statements isincorrect?
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
#Breakdown of the Python Code:
#(A) Correct# The function r.json() can be used to display theserver response (token details).
#(B) Correct# Thetoken request URLis correct.
#(D) Correct# The request body is inJSON format(json={"userName": nbi_name, "password": nbi_pwd"}).
#(C) Incorrect# The requestuses POST, not GET(requests.post() is explicitly called).
#Reference:Huawei HCIE Datacom - iMaster NCE RESTful API Authentication
NEW QUESTION # 24
IPsec SAs can be established in either manual mode or IKE auto-negotiation mode. Which of the following statements about the two modes is incorrect?
Answer: D
Explanation:
Understanding IPsec SA (Security Association) Establishment
#IPsec (IP Security) provides encrypted communicationover IP networks.
#Security Associations (SAs) define encryption, authentication, and key parameters for IPsec tunnels.
Two IPsec SA Modes:
1##Manual Mode:
All parameters (keys, encryption methods, authentication settings) must be manually configured.
Keys do not change automatically, making it less secure.
2##IKE (Internet Key Exchange) Auto-Negotiation Mode:
UsesIKE Phase 1 and Phase 2to automaticallynegotiate, generate, and exchange keys.
Keys are periodically refreshed, increasing security.
UsesDiffie-Hellman (DH) key exchangefor secure key generation.
Why is Answer D Incorrect?
#D. SAs established in both manual and IKE auto-negotiation modes can be dynamically updated.
Incorrect:Inmanual mode, the IPsec SA isstaticand does not support dynamic updates.
Correct behavior:OnlyIKE auto-negotiation modesupportsdynamic re-keying and SA updates.
#Reference:Huawei HCIE-Datacom Guide - IPsec SA Modes and IKE Negotiation
NEW QUESTION # 25
Which of the following is the drop probability of packets exceeding the upper threshold in WRED?
Answer: D
Explanation:
* WRED (Weighted Random Early Detection) helps prevent congestion by randomly discarding packets before buffers are full.
* Drop Probability Behavior:
* Below lower threshold = 0% drop (packets pass normally).
* Between lower & upper threshold = Progressively increasing drop probability.
* Above upper threshold = 100% drop (probability = 1).
# Reference: Huawei HCIE-Datacom Guide - WRED Mechanism
NEW QUESTION # 26
Refer to the output information of a device below. According to the information, which of the following MPLS labels is carried in a data packet forwarded by the device to 10.0.1.1?
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
# MPLS labels in SR-MPLS are calculated using the SRGB (Segment Routing Global Block) base and the Prefix-SID.
# Label Calculation Formula:
MPLS Label=SRGB Base+Prefix-SID\text{MPLS Label} = \text{SRGB Base} + \text{Prefix-SID} MPLS Label=SRGB Base+Prefix-SID
# Extracting Values from the LSDB:
* SRGB Base: 36000
* Prefix-SID: 300
# Valid MPLS Labels:
* 36000 + 300 = 36300
* 40002 and 38002 fall within the SRGB range.
* 39002 is outside the expected range, making it the incorrect answer.
# Reference: Huawei HCIE Datacom - Segment Routing Label Calculation
NEW QUESTION # 27
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