Free Preparation Discussions
MENU
Huawei H12-821_V1.0 Exam Questions
- Huawei Certified ICT Professional HCIP Certifications
- Huawei HCIP Datacom Certifications
- Topic 1: Data Communication Fundamentals: This section addresses fundamental ideas in data communication for network engineers, such as network models, data transfer, and network topologies.
- Topic 2: Routing Protocols: This section, intended primarily for network engineers, covers the various routing protocols and covers how to set them up and resolve issues. This category includes both internal gateway protocols (IGPs) like OSPF and RIP and external gateway protocols (EGPs) like BGP.
- Topic 3: Switching Technologies: Aimed at network engineers, this section covers switching principles, VLANs, and STP.
- Topic 4: Network Security: For network engineers, this section covers the fundamentals of network security, including firewalls, virtual private networks, and access control lists (ACLs).
- Topic 5: Network Troubleshooting: Network engineers should refer to this section, which covers frequent network problems, troubleshooting techniques, and optimizing network performance.
Free Huawei H12-821_V1.0 Exam Actual Questions
Note: Premium Questions for H12-821_V1.0 were last updated On Jun. 10, 2025 (see below)
Both MQC and PBR can be applied on device interfaces to filter received and sent packets or control packet forwarding paths.
MQC and PBR
MQC (Modular QoS Command-Line Interface): Applied to interfaces for classifying and controlling traffic.
PBR (Policy-Based Routing): Used to influence packet forwarding based on policies rather than traditional routing tables.
Both MQC and PBR can be configured on device interfaces to filter incoming/outgoing packets or control their forwarding paths.
HCIP-Datacom-Core Reference
The use of MQC and PBR on device interfaces is elaborated in the QoS and routing control chapters.
IGMP has three versions. Different versions support different features. Which of the following features is supported by all versions?
Comprehensive and Detailed Step-by-Step
Overview of IGMP Versions:
IGMPv1: The simplest version, supports basic group membership management using Report messages but lacks Leave messages.
IGMPv2: Adds features like Leave messages and Group-Specific Queries.
IGMPv3: Supports specifying multicast sources for Source-Specific Multicast (SSM).
Feature Supported by All Versions:
Report messages are fundamental to IGMP functionality and are supported in all three versions.
Features Not Supported by All Versions:
Group-Specific Queries (A): Supported in IGMPv2 and IGMPv3.
Leave Messages (B): Introduced in IGMPv2.
Specifying Multicast Sources (D): Introduced in IGMPv3.
HCIA-Datacom Study Guide, Chapter: IGMP Overview
Huawei Multicast Protocol Details
BGP is generally applied to complex networks where routes change frequently. Frequent route flapping consumes a large number of bandwidth and CPU resources, and even affects the normal operation of the network. This is an unavoidable problem that cannot be solved in BGP.
BGP Route Flapping and Mitigation
While route flapping is a concern in large-scale networks, BGP employs mechanisms such as Route Dampening to mitigate its impact. Route dampening suppresses frequently flapping routes for a period of time to reduce resource consumption and network instability.
Therefore, it is incorrect to state that the issue cannot be resolved in BGP.
HCIP-Datacom-Core Reference
The mechanism of route dampening is detailed in the BGP optimization chapters.
BFD provides fast fault detection independent of media and routing protocols. To use this mechanism to detect link connectivity, devices at both ends must support this feature.
Comprehensive and Detailed Step-by-Step
Bidirectional Forwarding Detection (BFD):
BFD is a lightweight protocol that provides rapid fault detection on links independent of the underlying routing protocol or media.
Requirements for BFD:
Both devices at the endpoints of the link must support and configure BFD for it to operate.
If one device does not support BFD, the feature cannot be used for link detection.
HCIA-Datacom Study Guide, Chapter: BFD Overview
Huawei BFD Configuration Guidelines
On an enterprise WLAN where Portal authentication is deployed, an AC functions as an access device and communicates with a Portal server using the Portal protocol. Which of the following statements are true about the Portal protocol?
Comprehensive and Detailed Step-by-Step
Portal Authentication:
Portal authentication uses a web-based mechanism where clients are redirected to a login page.
Communication between the access device and Portal server uses HTTP or HTTPS protocols.
Correct Statements:
Option A: HTTP or HTTPS is used for Portal authentication.
Option D: Portal protocol packets are transmitted over TCP for reliable communication.
Incorrect Statements:
Option B: Port 2000 is not the default for processing Portal packets.
Option C: The default destination port for communication with the Portal server is not 50100.
HCIA-Datacom Study Guide, Chapter: WLAN Portal Authentication
Huawei WLAN Authentication Protocols
- Select Question Types you want
- Set your Desired Pass Percentage
- Allocate Time (Hours : Minutes)
- Create Multiple Practice tests with Limited Questions
- Customer Support
Nell
25 days agoGilberto
1 months agoBeatriz
2 months agoLettie
3 months agoZona
3 months agoSkye
3 months agoStanford
4 months agoNoel
4 months agoDominque
4 months agoWillard
5 months agoIndia
5 months agoMyra
5 months agoKate
5 months agoFrance
6 months agoJenise
6 months agoRessie
6 months agoMirta
6 months agoMerilyn
6 months agoFloyd
7 months agoGoldie
7 months agoTamesha
7 months agoCeleste
7 months agoAllene
7 months agoShay
8 months agoChristoper
8 months agoDonette
8 months agoNidia
8 months agoXuan
8 months agoVeta
9 months agoJunita
9 months agoGladys
9 months agoJonell
9 months agoGregg
9 months agoBenedict
10 months agoMarva
12 months ago