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Huawei H12-831_V1.0-ENU exam is a comprehensive certification exam that tests the knowledge and skills of IT professionals in advanced routing and switching technologies. H12-831_V1.0-ENU exam is designed to assess the candidate's understanding of network architecture, network security, routing protocols, and switching technologies. H12-831_V1.0-ENU Exam also tests the candidate's ability to design, implement, and maintain complex networks.
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Huawei H12-831_V1.0 exam is a time-limited exam that consists of multiple-choice questions. Candidates are required to answer all the questions within the allotted time. H12-831_V1.0-ENU Exam is conducted in a proctored environment to ensure that the integrity of the exam is maintained. Candidates who pass the exam are awarded the HCIP-Datacom-Advanced Routing and Switching Technology V1.0 certification.
NEW QUESTION # 52
On the network shown in the figure, the DHCP server function is enabled on GE0/0/0 of R2, and the address pool is an interface address pool.
When GE0/0/0 and GE0/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.
Options:
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the DHCP Process in This Scenario:
* DHCP Server on R2:
* The DHCP server is configured on interface GE0/0/0 of R2.
* The address pool is an interface address pool, meaning that IP addresses are allocated from the subnet of GE0/0/0 (i.e., 10.0.12.0/24).
* DHCP Clients on R1:
* Both interfaces (GE0/0/0 and GE0/0/1) on R1 are set as DHCP clients, meaning they will send DHCP DISCOVER messages to obtain an IP address dynamically.
* Why Only One Interface Gets an IP Address?
* Interface address pools in Huawei devices assign only one IP address per MAC address (which is typically the router's MAC).
* Since both interfaces belong to R1, they share the same MAC address when making a DHCP request.
* As a result, the DHCP server on R2 only assigns one IP address to the first requesting interface.
* The second request is ignored or denied by the DHCP server due to the duplicate MAC address issue.
Key Takeaways:
* Huawei routers using an interface-based DHCP address pool assign only one IP per MAC address.
* Since both interfaces on R1 have the same MAC, only one gets an IP.
* This behavior is expected in Huawei's HCIP-Datacom-certified DHCP configurations.
HCIP-Datacom-Advanced Routing & Switching Technology References:
* Huawei HCIP-Datacom Official Certification Guide, Chapter on DHCP Server and Client Configurations.
* Huawei Datacom Configuration Guide, Section on Interface Address Pools and Address Assignment Limitations.
* Huawei Enterprise Networking Training Materials, DHCP Relay and DHCP Server Behavior.
NEW QUESTION # 53
SFFv2 is an IGP running on an IPv4 network: 0SPFV3 is an IGP running on an IPv6 network. Compared with 0SPFV2, SPFV3 has a similar LSA type, but has slightly different functions. Which of the following is not included in the LSA type of 0SPFV3?
Answer: D
NEW QUESTION # 54
Which of the following is not a new addition to IS-IS to support the processing and calculation of IPv6 routes?
Answer: D
NEW QUESTION # 55
On the IS-IS network shown in the figure, R1 imports a default route using the default-route-advertise always level-1 command. Which of the following statements are true?
Answer: A,B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
Understanding the IS-IS Levels and Default Route Advertisement:
* R1 is a Level-1 router
* R2 is a Level-1-2 router (meaning it connects both Level-1 and Level-2 areas)
* R3 is a Level-2-only router
Step 1: What Does " default-route-advertise always level-1 " Do?
* This command forces R1 to advertise a default route (0.0.0.0/0) to all its Level-1 IS-IS neighbors , regardless of whether R1 has a default route in its routing table.
* Since R1 is a Level-1 router, it does not participate in Level-2 routing , meaning it relies on R2 (a Level-1-2 router) for external connectivity.
Step 2: Checking the Routing Tables
* R1: Since it is only a Level-1 router and does not receive a default route from any higher-level router, it does not have a default route in its own routing table . # ( D is correct )
* R2: Since R1 advertises the default route at Level-1, R2 (a Level-1-2 router) receives this default route in its Level-1 database . # ( B is correct )
* R3: R3 is a Level-2-only router , and default routes are not automatically leaked between Level-1 and Level-2 unless explicitly configured .
* Since no explicit route leaking configuration is mentioned, R3 will not have the default route
# ( C is incorrect ).
* A is incorrect because the command successfully advertises a default route from R1 to Level-1 neighbors like R2.
Final answer: # B, D
References:
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - IS-IS Default Route Advertisement IS-IS Routing Level-1 and Level-2 Behavior IS-IS Route Leaking and Default Route Propagation
NEW QUESTION # 56
In the preparation phase of a migration project , the software and hardware need to be checked. Match the operation objects in the preparation phase with the corresponding operation contents.
Answer:
Explanation:
Explanation:
Network cable # Use a tester to check connectivity.
Device version file # Check the size of the software package and check whether the file matches the device model.
Board # Install the board on a device that is not connected to the network and observe the running status of the device.
License # Check whether the license is in the validity period to prevent device functions from being affected.
Migration personnel list # Check whether responsibilities and permissions are clearly assigned.
Comprehensive and Detailed In-Depth Explanation:
1. Network Cable - Connectivity Testing:
* Before starting a migration project, all network cables should be tested for physical connectivity issues
.
* Network testers can be used to detect any breaks, shorts, or incorrect wiring.
* Ensuring proper connectivity avoids delays and troubleshooting issues during the migration.
2. Device Version File - Software Compatibility Check:
* Firmware and software versions must be verified before upgrading or migrating network devices.
* The device version file should match the model and hardware specifications to avoid compatibility issues.
* If incorrect software is used, the device may not function properly or could become inoperable.
3. Board - Installation and Hardware Verification:
* Before installing new hardware modules (boards, line cards, etc.) into a production environment, they should be tested in isolation .
* Testing ensures the board is operational and does not introduce faults into the system.
* If a board is faulty, it can cause device failure or unexpected behavior in the migration.
4. License - Validity and Activation Check:
* Some network devices require licenses for full functionality (e.g., advanced routing, security features).
* If a license is expired or missing, critical functions may be disabled after migration.
* Checking license status in advance prevents unexpected downtime or service disruptions.
5. Migration Personnel List - Roles and Responsibilities Assignment:
* Large network migrations require clear responsibility assignments for each team member.
* A migration personnel list ensures that everyone knows their role, tasks, and permissions .
* Proper coordination avoids miscommunication, errors, and project delays.
Key Takeaways:
# Network cables should be tested for connectivity.
# Software versions should match the hardware model to prevent incompatibility.
# Hardware boards should be tested before installing into production.
# Licenses should be verified to prevent service disruptions.
# Migration personnel roles should be clearly defined for smooth execution.
HCIP-Datacom-Advanced Routing & Switching Technology References:
* Huawei HCIP-Datacom Official Certification Guide , Chapter on Network Migration Best Practices .
* Huawei Enterprise Networking Whitepapers , Guidelines on Software & Hardware Pre-checks for Migration .
* Huawei Technical Documentation , License Management in Huawei Datacom Devices .
NEW QUESTION # 57
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