Pass the Huawei HCIP-Access H35-210_V2.5 Questions and answers with ValidTests

GPON (Gigabit Passive Optical Network) is a fiber-optic access technology that integrates seamlessly with VoIP (Voice over IP) technology to provide voice services alongside data and video services. This integration allows GPON to support triple-play services (voice, data, and video) over a single fiber infrastructure.

xDSL : Refers to copper-based technologies and is not directly integrated with GPON.

Ethernet : While GPON uses Ethernet frames for data transmission, it is not the primary integration point for application scenarios.

WLAN : Wireless LAN is a separate technology and not directly integrated with GPON.

VoIP : Voice over IP is a key application scenario for GPON, enabling high-quality voice services over fiber-optic networks.

This is explicitly mentioned in the HCIA Huawei ACCESS documentation, which highlights the role of GPON in delivering converged services, including VoIP.

References:

HCIA Huawei ACCESS Official Documentation , Chapter: GPON Technology and Applications.

Triple-Play Services in GPON Networks by Huawei.

Optical Module Classes :

Optical modules are classified based on their optical loss budget, which determines the maximum distance they can support over fiber-optic cables.

Class Comparison :

CLASS B : Supports shorter distances with lower optical loss budgets.

CLASS B+ : Provides a higher optical loss budget than CLASS B, supporting longer distances.

CLASS C+ : Offers an even higher optical loss budget, suitable for extended-reach deployments.

CLASS C++ : Provides the highest optical loss budget, enabling the longest reach and greatest flexibility in network design.

Why B?

CLASS C++ has the most sufficient optical loss budget, making it the best choice for scenarios requiring maximum reach and reliability.

Thus, the correct answer is B .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: Optical Module Specifications.

ITU-T G.984.x Standards for GPON .

SNMP Trap Source Address :

The trap source address is the IP address used by the device to send SNMP traps to the NMS (Network Management System).

Configuration Options :

Option A : Setting the trap source address to 127.0.0.1 (localhost) is incorrect because it is not routable and cannot be used for communication with the NMS.

Option B : Using the loopback address is possible but not recommended unless the NMS is explicitly configured to accept traps from the loopback address.

Option C : Setting the trap source address to the same address used by the NMS to add the device ensures proper communication and alignment between the device and NMS.

Option D : Incorrect because not all options are valid.

Why C?

Configuring the trap source address to match the address used by the NMS ensures that the NMS can correctly identify and process traps from the device.

Thus, the correct answer is C .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Configuration.

RFC 3411: SNMP Framework .

NMS configuration requires:

A: Device name for identification.

B: SNMP community string for authentication.

C: IP address for communication.

D (Incorrect): Routing is handled by network devices, not NMS parameters.

Huawei's broadband access network devices are designed to support multiple technologies for providing connectivity to end users. These devices primarily include:

Copper Line Access Devices : These devices use xDSL (Digital Subscriber Line) technology, which is widely used for broadband access over traditional telephone lines. Examples include ADSL, VDSL, and G.fast.

Optical Access Devices : These devices use PON (Passive Optical Network) technology, which is a fiber-optic-based access technology. GPON (Gigabit Passive Optical Network) and XGS-PON (10-Gigabit Symmetric Passive Optical Network) are examples of PON technologies.

The statement aligns perfectly with the HCIA Huawei ACCESS documentation, which emphasizes the role of access-layer devices in supporting both copper and fiber-based technologies.

References:

HCIA Huawei ACCESS Official Documentation , Chapter: Access Technologies Overview.

GPON and xDSL Technology Whitepaper by Huawei.

Double-Tagged VLANs :

Double-tagging involves adding two VLAN tags to a packet:

Inner VLAN Tag : Identifies users or devices.

Outer VLAN Tag : Identifies services or networks.

VLAN Attributes :

QinQ : Adds an outer VLAN tag to an already tagged packet, enabling double-tagging.

Stacking : Similar to QinQ but less commonly used.

Common : Supports only single-tag VLANs.

Scenario Analysis :

The university requires double-tagging for user and service identification.

The QinQ attribute is specifically designed for this purpose.

Why C?

The QinQ attribute supports double-tagging, making it the correct choice for this scenario.

Thus, the correct answer is C .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Design.

IEEE 802.1ad QinQ Standards .