Huawei HCIA-Access V2.5 H35-210_V2.5 Exam Questions

Answer : B

MAC (Media Access Control) addresses are 48-bit identifiers assigned to network interfaces for communication on a local network.

Allocation of MAC Addresses :

MAC addresses are not allocated by the IETF . Instead, they are managed and assigned by the IEEE (Institute of Electrical and Electronics Engineers) .

The IEEE assigns blocks of MAC addresses to hardware manufacturers (vendors), who then assign unique MAC addresses to their devices.

Structure of MAC Addresses :

The first 24 bits (Organizationally Unique Identifier, OUI) identify the manufacturer.

The remaining 24 bits are assigned by the manufacturer to ensure global uniqueness.

Why FALSE?

The statement incorrectly attributes the allocation of MAC addresses to the IETF, which is responsible for Internet standards like TCP/IP, not MAC address allocation.

Thus, the correct answer is FALSE .

HCIA Huawei ACCESS Official Documentation , Chapter: MAC Addressing.

IEEE OUI Assignment Process .

Answer : C

Fiber Connection Loss Overview :

Fiber connection points introduce optical loss due to imperfections in alignment, reflections, or contamination.

Loss Comparison :

Movable Connector : Highest loss due to potential misalignment, contamination, and reflections.

Cord End Connector : Moderate loss, as these connectors are typically factory-polished and more stable than movable connectors.

Splicing : Lowest loss, as fusion splicing provides near-perfect alignment and minimal reflection.

Why C?

The order of losses from highest to lowest is: Movable connector > Cord end connector > Splicing .

Thus, the correct answer is C .

HCIA Huawei ACCESS Official Documentation , Chapter: Fiber Optic Connections.

ITU-T G.652 Standards for Optical Fiber .

Answer : A

VLAN Tag Translation :

VLAN tag translation is used to modify VLAN tags in packets as they pass through the OLT.

The tag-transform parameter determines how VLAN tags are handled during service flow creation.

Behavior of tag-transform = default :

When tag-transform is set to default, the OLT applies predefined rules for VLAN tag conversion based on the SVLAN (Service VLAN) attributes.

These rules vary depending on the SVLAN type (e.g., Common, QinQ, Stacking), resulting in different behaviors.

Why TRUE?

The statement accurately reflects the behavior of the tag-transform parameter when set to default. Different SVLAN attributes lead to different tag conversion rules.

Thus, the correct answer is A .

HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Tag Translation.

OLT Configuration Guide by Huawei.

Answer : A

Answer : A

SNMP Structure Overview :

SNMP consists of three main components:

NMS (Network Management System) : The central system that manages and monitors devices.

Agent : A process running on the managed device that interacts with the NMS.

MIB (Management Information Base) : A database of manageable objects on the device.

Agent Functionality :

The Agent performs several key functions:

Responding to Requests : When the NMS sends a request (e.g., GET, SET), the Agent retrieves or modifies the requested information and responds.

Collecting Status Information : The Agent continuously monitors the device and updates the MIB with relevant data.

Executing Commands : The Agent executes commands issued by the NMS, such as restarting a service or applying configurations.

Reporting Alarms : The Agent sends traps (alarms) to the NMS when specific events occur (e.g., interface down, high CPU usage).

Why TRUE?

The statement accurately describes the role and functionality of the Agent in the SNMP structure.

Thus, the correct answer is A .

HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Protocol.

RFC 3411: SNMP Framework .

Answer : B

Answer : A