Category Huawei

Huawei H12-821_V1.0 Cert Guide PDF 100% Cover Real Exam Questions

Pass H12-821_V1.0 Exam – Real Questions and Answers

Huawei H12-821_V1.0 certification exam tests the candidate’s knowledge and skills in various areas related to data communication and core network technology. Some of the topics covered in H12-821_V1.0 exam include MPLS VPN technology, OSPF, BGP, IS-IS, and IPv6. Candidates are required to have a deep understanding of these concepts to pass the exam.

NO.82 On an STP network, the root bridge, root port, and designated port are elected in sequence. The election rules of these ports are different. List the steps for electing the root port in sequence.

A screenshot of a computer Description automatically generated
Explanation of Root Port Election in STP:
In a Spanning Tree Protocol (STP) network, theRoot Portis selected on each switch (except the Root Bridge).
The Root Port is the port with thelowest path costto the Root Bridge. If there is a tie in path cost, the following criteria are used in sequence to break the tie:
Steps for Root Port Election in Sequence:
RPC Comparison (Root Path Cost):
The port with thelowest Root Path Costis preferred.
Root Path Cost is the cumulative cost of the path to the Root Bridge.
Peer BID (Bridge ID) Comparison:
If the Root Path Costs are equal, theBridge IDof the connected switch (peer) is compared.
The port connecting to the switch with thelower Bridge IDis preferred.
Peer PID (Port ID) Comparison:
If the Bridge IDs are equal, thePort IDof the peer’s sending port is compared.
The port connecting to thelower Port IDis preferred.
Local PID (Port ID) Comparison:
If all else is equal, theLocal Port IDof the switch is used.
The port with thelower Local Port IDis selected.

NO.83 In special scenarios, when advertising routes to an IBGP peer, a BGP device needs to set the next hop to its IP address to prevent blackhole routes. Which of the following commands can be run in this case?

 peer next-hop-local

 peer mpls-local-ifnet

 peer private-nexthop

 peer next-hop-invariable

Comprehensive and Detailed Step-by-Step Explanation:
* Blackhole Route Issue in BGP:
* In IBGP, the next hop of a route learned from an EBGP peer is not changed by default. If an IBGP peer cannot reach the next hop, blackhole routes may occur.
* To prevent this, the peer next-hop-local command is used to set the next hop to the local router’s IP address.
* Other Commands:
* peer mpls-local-ifnet: Used in MPLS networks to set the next hop as the local interface address.
* peer private-nexthop: Allows advertising private IP addresses as the next hop.
* peer next-hop-invariable: Ensures the next hop is not modified during route advertisement, which is the opposite of what is required here.
References:
* HCIA-Datacom Study Guide, Chapter: BGP Next Hop Behavior
* Huawei BGP Configuration Commands

NO.84 In the network shown in the figure, R1 and R2 run the OSPF protocol. The Router-ID of R1 is 10.0.1.1 and the Router-ID of R is 10.0.2.2.

When Rt receives the DSPF message sent by R2, what is the neighbor status of R1 at this time?

 Down

 Full

 2-way

 Loading

NO.85 In the BGP protocol, if the preconditions are the same, please sort the following route types according to priority.
1) Manual aggregation
2) Automatic aggregation
3) Network
4) Import

 Manual aggregation

 Automatic aggregation

 Import

 Network

NO.86 Which of the following description of the permanent multicast address is wrong?

 All routers running OSPF protocol listen on 224.0.0.5

 All hosts and routers in the network segment listen to 224.0.0.1

 All routers listen on 224.0.0.2

 All routers running the PIM protocol listen on 224.0.0.100

NO.87 A monitoring plane usually comprises the monitoring units of main control boards and interface boards. This plane can monitor the system environment independently. Which of the following environment monitoring functions can be provided by the monitoring plane?

 Voltage monitoring

 Temperature monitoring

 Fan control

 System power-on and power-off control

NO.88 IGMPV3 not only supports IGMPv1 General Query and IGMPv2 Group-Specific Query, and also IGMPv3 Source/Group-Specific Query.

 TRUE

 FALSE

IGMPv3 builds on IGMPv1 and IGMPv2 by supporting all previous query types, including General Query and Group-Specific Query, while introducing Source/Group-Specific Query. This enhancement allows finer control over multicast group membership .

NO.89 The command format of the prefix list (IP-Prefx) is ip ip-prefx ip-prefix-name [index index-number] permit | deny] ipv4-address mask-length [ greater-equal greater- equal-value] [less -equal less-equal- value], if only greater-equal is specified and less-equal is not specified, the prefix range is:

 [0. greater-equal-value]

 Unlimited

 [mask-length, greater-equal-value]

 [greater-equal-value.32]

NO.90 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.

 TRUE

 FALSE

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.

NO.91 An IP prefix list is a common matching tool in routing policies. When an IP prefix list is configured on a Huawei router, which of the following parameters are optional?

 Index of the prefix list

 Longest mask length to be matched

 Shortest mask length to be matched

 Mask length

Comprehensive and Detailed In-Depth Explanation:
* IP Prefix lists are used to filter routes based on prefix and mask length.
* The optional parameters include:
* Index of the prefix list # Specifies priority/order (Optional).
* Shortest mask length to be matched # Defines the minimum subnet mask (Optional).
* Longest mask length to be matched # Defines the maximum subnet mask (Optional).
* Mask length (D) is mandatory because it specifies the exact prefix length being matched.
# Reference: Huawei HCIA-Datacom Study Guide, Configuring Prefix Lists for Route Filtering.

NO.92 Compared with RSTP, which of the following port roles are added to MSTP?

 Backup port

 Master port

 Edge port

 Regional edge port

Additional Port Roles in MSTP
Master Port: Indicates the port on the shortest path to the root bridge in a region. Regional Edge Port: Identifies a port at the boundary of the MST region. Backup and edge ports exist in RSTP and are not newly introduced by MSTP.

NO.93 A Huawei firewall by default creates security zones named untrust, dmz, _________ and local. (Use Lowercase letters.)

TRUST
Explanation:
By default, Huawei firewalls create security zones named untrust, dmz, trust, and local. These zones facilitate security policies for inbound, outbound, and inter-zone traffic control .

NO.94 Four routers run ISIS and have established adjacencies. The area IDs and router levels are marked in the following figure. If route leaking is configured on R3, which of the following is the cost of the route from R4 to 10.0.2.2/32?

 80

 50

 40

 30

In the given topology, the route from R4 to 10.0.2.2/32 traverses R3, which performs route leaking from Level-2 to Level-1. The cost is calculated as follows: R4 to R3 (40) + R3 to R2 (10) + R2 to the destination (30), resulting in a total cost of 80 .

NO.95 If the Length/Type=O?100 of an Ethernet data frame, which of the following options may the data frame be sent from? (Multiple choice)

 Switch Trunk type ports

 Switch Access: Type of port

 Serial interface of the router

 Switch Hybrid: type of port

NO.96 Which of the following statements is false?

 If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.

 A device with a higher router priority has a higher election priority.

 When a router with the highest router priority joins an OSPF network, this router will become the new DR.

 If two devices have the same router priority, the device with a larger router ID has a higher election priority.

NO.97 When IGMP query is configured with SSM Mapping rules, SSM services can only be provided to member hosts running IGMPv2.

 TRUE

 FALSE

NO.98 Which statement about multicast packet forwarding is correct?

 The source address of the multicast packet is a unicast address

 In the multicast transmission mode, the destination address of the message can clarify the location of the receiver

 The failure of the RPF check indicates that the multicast data packet is received from the suboptimal interface, but the inbound interface will still receive the multicast traffic and forward it downstream

 The IGMP Snooping function cannot control the range of multicast traffic flooding on the Ethernet

NO.99 BGP can select routes based on the AS_Path attribute. Therefore, in some cases, a route-policy needs to be used to modify the AS_Path attribute for route selection. Which of the following parameters can be specified in the apply as-path command for a route-policy to modify this attribute?

 Delete

 Additive

 Copy

 Overwrite

Comprehensive and Detailed Step-by-Step Explanation:
1. Overview of AS_Path Attribute Modification:
The apply as-path command in a route-policy is used to modify the AS_Path attribute of routes. This is often required to influence the selection of routes or to adjust routing policies for incoming or outgoing BGP updates.
2. Parameters of the apply as-path Command:
Option A: Delete
Correct.
The delete parameter removes specific AS numbers from the AS_Path attribute. This is used to simplify or manipulate the AS_Path for specific routing policies.
Option B: Additive
Correct.
The additive parameter appends an AS number to the existing AS_Path attribute, instead of overwriting it.
This is useful when you want to prepend AS numbers to influence route selection without removing the original AS_Path.
Option C: Copy
Incorrect.
The copy parameter is not supported in the apply as-path command for modifying AS_Path attributes.
Option D: Overwrite
Correct.
The overwrite parameter replaces the existing AS_Path with a new one. This provides complete control over the AS_Path attribute but removes the original AS_Path entirely.
3. Summary:
The valid parameters for the apply as-path command are delete, additive, and overwrite.
Huawei HCIA-Datacom Study Guide, Chapter “BGP Route Policies.”
BGP Attribute Modification in Huawei Documentation.

 Loading …

100% Free H12-821_V1.0 Daily Practice Exam With 385 Questions: https://www.trainingdump.com/Huawei/H12-821_V1.0-practice-exam-dumps.html

New 2026 Realistic H12-891_V1.0 Dumps Test Engine Exam Questions in here

Updated Official licence for H12-891_V1.0 Certified by H12-891_V1.0 Dumps PDF

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Certification Exam covers a wide range of topics, including advanced IP routing protocols, MPLS VPNs, BGP, network security, network management, and more. H12-891_V1.0 exam is designed to test the candidate’s ability to design, implement, and troubleshoot complex data communication infrastructures. H12-891_V1.0 exam includes both theoretical and practical components, and candidates must demonstrate their ability to apply their knowledge in real-world scenarios.

Huawei H12-891_V1.0 (HCIE-Datacom V1.0) Exam is a certification that focuses on developing skills in the field of data communication. HCIE-Datacom V1.0 certification is designed to provide professionals with the necessary knowledge and expertise to design, operate, and troubleshoot complex data communication networks. H12-891_V1.0 exam is intended for individuals who have experience in the field of data communication and want to advance their skills and knowledge.

Grab latest Huawei H12-891_V1.0 Dumps as PDF Updated: https://www.trainingdump.com/Huawei/H12-891_V1.0-practice-exam-dumps.html

Go to H20-923_V1.0 Questions – Try H20-923_V1.0 dumps pdf

Dumps Practice Exam Questions Study Guide for the H20-923_V1.0 Exam

Free HCSP-Field H20-923_V1.0 Exam Question: https://www.trainingdump.com/Huawei/H20-923_V1.0-practice-exam-dumps.html

(PDF) HCIE-WLAN H12-351_V1.0 Exam and Certification Test Engine

Use H12-351_V1.0 Exam Dumps (2026 PDF Dumps) To Have Reliable H12-351_V1.0 Test Engine

Candidates for the Huawei H12-351_V1.0 exam should have a solid understanding of wireless network technologies and protocols, as well as experience designing, deploying, and managing WLAN networks. They should also have experience with Huawei WLAN products and solutions, including access points, WLAN controllers, and management software. With the Huawei H12-351_V1.0 certification, IT professionals can demonstrate their expertise in wireless networking and advance their careers in the ICT industry.

H12-351_V1.0 Dumps Full Questions with Free PDF Questions to Pass: https://www.trainingdump.com/Huawei/H12-351_V1.0-practice-exam-dumps.html

[May 12, 2026] H19-423_V1.0 Dumps PDF and Test Engine Exam Questions – TrainingDump

Verified H19-423_V1.0 exam dumps Q&As with Correct 565 Questions and Answers

Huawei H19-423_V1.0 Test Engine PDF – All Free Dumps: https://www.trainingdump.com/Huawei/H19-423_V1.0-practice-exam-dumps.html

Latest H13-624_V5.5 Practice Test Questions Verified Answers As Experienced in the Actual Test!

Pass Huawei H13-624_V5.5 Exam in First Attempt Easily

Huawei H13-624_V5.5 Exam Syllabus Topics:

We offers you the latest free online H13-624_V5.5 dumps to practice: https://www.trainingdump.com/Huawei/H13-624_V5.5-practice-exam-dumps.html

[Apr-2026] The Best HCIP-Access H35-211_V2.5 Professional Exam Questions

Try 100% Updated H35-211_V2.5 Exam Questions [2026]

Huawei H35-211_V2.5 (HCIP-Access V2.5) Exam is a comprehensive exam that covers a broad range of topics related to access network technologies. H35-211_V2.5 exam is designed to test candidates on their knowledge of access network architecture, access network protocols, network security, and more. Additionally, the exam is designed to assess candidates’ ability to design, deploy, and manage access networks in a variety of environments, including small and medium-sized businesses, as well as large enterprises.

The HCIP-Access V2.5 exam is ideal for IT professionals who are looking to enhance their expertise in access network technologies. H35-211_V2.5 exam is designed to help candidates develop a deep understanding of access network technologies, including the latest industry trends and best practices. Additionally, the exam helps IT professionals develop the skills and knowledge required to design, deploy, and manage access networks that meet the needs of modern businesses.

H35-211_V2.5 Exam Questions Get Updated [2026] with Correct Answers: https://www.trainingdump.com/Huawei/H35-211_V2.5-practice-exam-dumps.html

Verified & Latest H13-831_V2.0 Dump Q&As with Correct Answers

Latest H13-831_V2.0 dumps – Instant Download PDF

The Huawei H13-831_V2.0 exam focuses on the design and implementation of cloud service solutions. Candidates will be tested on their ability to develop cloud service solutions that meet specific business needs, taking into account factors such as scalability, availability, and performance. They will also need to have a deep understanding of cloud service management, including resource allocation, monitoring, and troubleshooting.

Huawei H13-831_V2.0 (HCIE-Cloud Service Solutions Architect (Written) V2.0) Exam is a challenging and comprehensive certification exam that covers all aspects of cloud computing. It is a valuable credential for IT professionals who want to demonstrate their expertise in this rapidly growing field and advance their careers in cloud computing.

The Ultimate Huawei H13-831_V2.0 Dumps PDF Review: https://www.trainingdump.com/Huawei/H13-831_V2.0-practice-exam-dumps.html

Certification Training for H12-841_V1.5 Exam Dumps Test Engine [2026]

Mar 14, 2026 Step by Step Guide to Prepare for H12-841_V1.5 Exam

Ultimate Guide to Prepare H12-841_V1.5 Certification Exam for Huawei-certification: https://www.trainingdump.com/Huawei/H12-841_V1.5-practice-exam-dumps.html

Pass Your Huawei Exam with H12-725_V4.0 Exam Dumps (Updated 62 Questions)

H12-725_V4.0 Exam Dumps – Huawei Practice Test Questions

Huawei H12-725_V4.0: HCIP-Security V4.0 exam is an industry-standard certification that is recognized globally. HCIP-Security V4.0 certification is highly valued by organizations and employers that are looking to hire cybersecurity professionals with advanced skills and expertise. Professionals who attain this certification will have a significant advantage in the job market, as it demonstrates their commitment to advancing their knowledge and skills in the field of cybersecurity.

The HCIP-Security V4.0 Certification Exam is intended for security professionals who wish to enhance their skills in the Huawei Security domain. H12-725_V4.0 exam is suitable for security engineers, security architects, security consultants, and other security professionals who want to demonstrate their expertise in implementing security solutions. HCIP-Security V4.0 certification exam validates the candidates’ proficiency in configuring and managing security devices and technologies, such as firewalls, intrusion prevention systems, and virtual private networks.

Pass Your H12-725_V4.0 Exam Easily with Accurate PDF Questions: https://www.trainingdump.com/Huawei/H12-725_V4.0-practice-exam-dumps.html