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  1. Home
  2. Huawei Certification
  3. H12-891_V1.0 Exam
  4. Huawei.H12-891_V1.0.v2025-06-03.q273 Dumps
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Question 226

Underneath, what doesn't belong to EVPN Type2 routing is ?( Multiple choice question)

Correct Answer: A
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Question 227

Which of the following commands is used to adjust the cost of an IS-IS interface?

Correct Answer: C
Comprehensive and Detailed Explanation:
* The IS-IS metric (cost) determines the shortest path selection.
* The isis cost command is used to manually set the cost of an IS-IS interface.
Command Breakdown:
# isis cost <value> - Adjusts the cost of an interface in the IS-IS routing protocol.# Lower cost means higher priority in route selection.
Why Are Other Options Incorrect?
# isis circuit-type - Sets the circuit type (L1, L2, L1/L2) but does not change cost.# isis timer hello - Adjusts hello interval timing, not path cost.# isis circuit-level - Defines interface level (L1, L2) but does not impact cost.
Thus, the correct answer is C.
# Reference: Huawei HCIE Datacom - IS-IS Path Cost Adjustment
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Question 228

In thefirewall hot standby scenario, in which of the following conditions will the local deviceproactively send VGMP packets?

Correct Answer: D
Comprehensive and Detailed Explanation:
VGMP (Virtual Group Management Protocol)is used inHuawei firewallsforhot standby and high availability.
When is VGMP Activated?#Whenhot standby is enabled, firewalls must synchronize their states to maintain failover capability.##VGMPsends packets periodicallyto check if the standby firewall is operational.
Why Other Options Are Incorrect?#Priority increase (B):Does not trigger VGMP packets directly.#Link detection timeout (C):Affects failover but does not initiate VGMP packets.#Hot standby being disabled (A):
Disables VGMP, preventing packets from being sent.
Thus, the correct answer isD.
#Reference:Huawei HCIE Datacom - Firewall Hot Standby and VGMP
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Question 229

In SSP packages, Jinja2 templates are used to implement mapping. In the Jinja2 syntax, {% ... %} contains control structures, for example, a 'for' loop.

Correct Answer: A
Understanding Jinja2 Templates in Huawei SSP Packages
#What is Jinja2?
Jinja2 is atemplating engineused inHuawei SSP (Smart Script Package) automation.
It allowsdynamic configuration generationbased on variables and logic.
#Jinja2 Syntax Basics:
#{% ... %}# Used forcontrol structureslike loops and conditions.
#{{ ... }}# Used forvariable placeholders.
Example of a Jinja2 Template Using {% ... %} for a Loop:
{% for interface in interfaces %}
interface {{ interface.name }}
description {{ interface.description }}
{% endfor %}
#This template dynamically generates interface configurationsbased on a list of interfaces.
Why is the Answer TRUE?
#{% ... %} is used for control structures in Jinja2 templates(e.g., loops, if-else statements).
#Jinja2 templates are widely used in SSP for Huawei network automation.
Real-World Application:
Automated Network Configuration:Uses Jinja2 inHuawei SSP automation scripts.
Data Center & SDN Automation:Dynamically generatesVXLAN, BGP, and OSPF configurations.
#Reference:Huawei HCIE-Datacom Guide - Jinja2 Templates in SSP Packages
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Question 230

Run the SSM across the entire HW IP multicast network. The following about SSM understands correctly?( Multiple choice question)

Correct Answer: C,D,E
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