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Huawei H12-821_V1.0 Exam Syllabus Topics:

SectionObjectives
Topic 1: Network Security- Security Technologies
  • 1. ACL
  • 2. Attack Prevention
  • 3. AAA
Topic 2: WLAN- Wireless Networking
  • 1. WLAN Deployment
  • 2. WLAN Architecture
  • 3. Wireless Security
Topic 3: Routing Basics- IP Routing Fundamentals
  • 1. Route Selection
  • 2. Static Routing
  • 3. Routing Table Principles
Topic 4: OSPF- OSPF Fundamentals
  • 1. OSPF Neighbor Relationship
  • 2. OSPF Area Design
  • 3. LSA and SPF Calculation
Topic 5: Multicast- IP Multicast Technologies
  • 1. Multicast Forwarding
  • 2. PIM
  • 3. IGMP
Topic 6: Network Solutions- Enterprise Network Solutions
  • 1. Campus Network
  • 2. Datacom Architecture
  • 3. WAN Solution
Topic 7: IS-IS- IS-IS Fundamentals
  • 1. IS-IS Neighbor Establishment
  • 2. Level-1 and Level-2 Routing
  • 3. LSP and SPF Mechanism
Topic 8: BGP- BGP Technologies
  • 1. BGP Route Advertisement
  • 2. IBGP and EBGP
  • 3. BGP Path Selection
Topic 9: Network Service and Management- O&M Technologies
  • 1. Network Monitoring
  • 2. Telemetry
  • 3. SNMP
Topic 10: Network Reliability- Reliability Technologies
  • 1. Redundancy Design
  • 2. BFD
  • 3. VRRP
Topic 11: Ethernet Switching Technology- Switching Fundamentals
  • 1. VLAN
  • 2. STP/RSTP/MSTP
  • 3. Link Aggregation
Topic 12: Routing and Traffic Control- Traffic Management
  • 1. Traffic Optimization
  • 2. Policy-based Routing
  • 3. Route Filtering
Topic 13: IPv6- IPv6 Fundamentals
  • 1. IPv6 Routing
  • 2. IPv4 to IPv6 Transition
  • 3. IPv6 Addressing

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Free PDF Quiz 2026 Accurate Huawei H12-821_V1.0: Interactive HCIP-Datacom-Core Technology V1.0 Course

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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q321-Q326):

NEW QUESTION # 321
Which of the following statements is false, based on the following IGMP information on an interface of RTA?
XC

Answer: C

Explanation:
The information provided indicates that the configured query interval is 60 seconds, which applies to general queries. Group-specific queries are sent at a shorter interval, usually derived from the maximum response time. Therefore, the statement about a 60-second interval for group-specific queries is false. Other statements regarding maximum response time (10s), IP address, and IGMP version (V2) are correct .


NEW QUESTION # 322
As shown in the figure, the forwarding of data traffic before roaming is STA-HAP-upper layer network, the forwarding method is direct forwarding, and the home agent is configured on the AP.

After three-layer roaming, what is the direction of data forwarding traffic?

Answer: C


NEW QUESTION # 323
Regarding BGP Local-Preference, which of the following descriptions are correct? (Multiple choice)

Answer: A,D


NEW QUESTION # 324
What is the default sending interval of BFD packets?

Answer: C

Explanation:
The default sending interval for BFD (Bidirectional Forwarding Detection) control packets is 100 milliseconds. This interval ensures rapid detection of link faults, providing fast failover and minimizing downtime in network operations .


NEW QUESTION # 325
A filter named si is configured on a device using the as-path-filter command and is applied to a specified BGP peer. The detailed configurations are as follows:
csharp
Copy
[SW1] ip as-path-filter si permit _65500$
[SW1] bgp 65100
[SW1-bgp] ipv4-family unicast
[SW1-bgp-af-ipv4] peer 10.1.1.2 as-path-filter si import
After the configuration is complete, which of the following statements is true about the way the local device processes the routes received from the peer?

Answer: C

Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Understanding the AS-Path Filter:
* The as-path-filter command is used in BGP to filter routes based on the AS_PATH attribute.
* In this configuration:
* The filter si is defined with the regular expression _65500$.
* The _65500$ expression specifies that the AS_PATH must end with 65500, meaning that the route's last hop must have passed through AS 65500.
2. Option Analysis:
Option A: It accepts only the routes whose AS_Path contains AS 65500.
* Incorrect.
* The _65500$ filter specifically matches routes where AS 65500 is the last AS in the AS_PATH. A route may contain AS 65500 somewhere in the middle of the AS_PATH but will not match this filter unless it is the last AS.
Option B: It accepts only the routes originated from AS 65500.
* Incorrect.
* Routes that originate from AS 65500 have an AS_PATH that starts with 65500. However, the filter
_65500$ only matches routes where AS 65500 is the last AS, not the first AS.
Option C: It accepts only the routes that last pass through AS 65500.
* Correct.
* The _65500$ filter ensures that the AS_PATH ends with 65500. This means that the route must have last passed through AS 65500 before being received by the local BGP router.
Option D: It accepts only the routes forwarded by AS 65500.
* Incorrect.
* While AS 65500 may forward the route, this is not what the filter _65500$ specifically checks for. It only ensures that AS 65500 is the last AS in the AS_PATH.
3. Summary:
* The as-path-filter with _65500$ accepts only the routes where AS 65500 is the last AS in the AS_PATH.
:
Huawei HCIA-Datacom Study Guide, Chapter "BGP Filtering Mechanisms"
RFC 4271: Border Gateway Protocol 4 (BGP-4)


NEW QUESTION # 326
......

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