Free Practice Questions for Huawei H35-211_V2.5 Exam

In capacity planning, the planned bandwidth is computed as:

Planned Bandwidth = Users × Penetration × Concurrency × Online Bandwidth × Duty Cycle × Channels × Coverage.

Substituting the values: 500 × 0.5 × 0.4 × 4 Mbit/s × 0.125 × 1 × 0.7

= 250 × 0.4 × 4 × 0.125 × 0.7

= 100 × 4 × 0.125 × 0.7

= 400 × 0.125 × 0.7

= 50 × 0.7

= 35 Mbit/s.

This matches the given result, so the statement is true.

On Huawei access devices/OLTs, VoIP/H.248 setup typically includes:

In voip view, configure media IP with gateway:

ip address media – e.g., ip address media 10.10.10.10 10.10.10.1.

Configure signaling IP without a gateway parameter:

ip address signaling – e.g., ip address signaling 10.10.10.10.

Add/enter the H.248 interface and apply properties with if-h248 attribute ….

It’s common to reset/enable the MG interface after attribute changes; many guides show reset coldstart (or reset) issued under the H.248 interface to activate the interface.

Authoritative configuration examples show media takes an IP and gateway, but signaling takes only the IP. Therefore, option D (attempting to configure signaling with a gateway parameter) is incorrect. Options A and C match documented syntax and workflow. Option B reflects the documented practice of issuing a reset (often written as reset coldstart) under the H.248 interface to apply/enable, as shown in Huawei-focused configuration guides.

In Huawei’s 10G GPON (XG-PON) system, the split ratio defines how many Optical Network Units (ONUs) can be connected to a single Optical Line Terminal (OLT) port through passive optical splitters.

According to ITU-T G.987.x standards and Huawei’s 10G GPON technical specifications, the maximum theoretical optical split ratio for 10G GPON is 1:128.

This means that a single OLT PON port can serve up to 128 ONUs through the passive optical distribution network (ODN).

While the physical capability supports 1:128, practical deployments often use lower ratios (e.g., 1:64) to maintain optical power budgets and ensure stable service quality, especially over longer fiber distances or when optical losses are high.

Huawei’s MA5800/EA5800 series OLTs, which support 10G GPON, comply fully with this standard, enabling 1:128 maximum splitting with appropriate ODN design.

Therefore, the correct answer is C. 1:128.

References (Aligned with HCIP-Access V2.5 and Huawei Technical Documentation):

HCIP-Access V2.5 Study Guide – “Huawei Campus Network Overview” Chapter, Section: GPON and 10G GPON Overview

Huawei 10G GPON (XG-PON) Technical White Paper

ITU-T G.987.1: 10-Gigabit-capable Passive Optical Networks (XG-PON) – General Characteristics

Huawei MA5800/EA5800 Product Description – Optical Port Split Ratio Specifications

Huawei OLTs support ONT replacement without deleting the original service profile by using ONT replace/auto-find mechanisms. The OLT can bind the new ONT (new SN) to the existing ONT configuration template (service-port, VLAN, QoS, multicast profile, etc.), achieving a smooth replacement without manually removing and re-creating the ONT and services. The statement that you must remove the ONT and re-register from scratch is therefore wrong.

Huawei OLTs support Eth-Trunk (link aggregation) with two standard modes: Static aggregation and Dynamic aggregation (LACP). These provide bandwidth expansion and redundancy on NNI uplinks. “Automatic” is not a defined mode; and “manual” is not used as a separate mode name in OLT Eth-Trunk configuration.

In an H.248 (Megaco) control model, the MGC is the controller that issues provisioning/connection-control commands such as Add, Modify, Subtract, AuditValue, AuditCapabilities to the MG. The MG (Media Gateway) can initiate only specific messages toward the MGC to announce state changes or report detected events—namely ServiceChange (to indicate restart, failure, availability changes, etc.) and Notify (to report observed events collected per event descriptor). Therefore, among the listed options, the commands that the MG itself can send are ServiceChange and Notify.

Type C GPON protection uses two different OLTs (dual-home). With uplink status linkage configured, a failure of the active OLT itself or its uplink interface triggers a protection switchover to the standby OLT to maintain service continuity for ONUs homed through the protected ODN.

When other ONUs on the same PON port can register but one ONU cannot, troubleshooting focuses on the individual ONU or its drop fiber. Valid possible causes include: ONU not powered, fiber/connector issues, password/SN mismatch, or faulty ONU hardware. Since hardware failure of that specific ONU is one of the recognized possible causes, the statement is true.

In access networks, Huawei recommends prioritizing real-time voice (VoIP) traffic with the highest forwarding priority (typically EF, 802.1p 5) to ensure low latency and jitter. IPTV/video is generally next (AF classes), while gaming and general Internet browsing are treated lower than voice. Therefore, VOIP receives the top priority to protect call quality under congestion.

With PITP enabled and Vendor-tag switching allowed, Huawei OLTs support transparent transmission and augmentation: the OLT keeps the user-carried Vendor tag and appends the local Vendor tag (e.g., slot/port/location), ensuring the upstream AAA/BRAS receives both the access-side identity and the OLT’s own location identity. Simply adding only the local tag (A) loses user-side info; forwarding unchanged (B) omits OLT location; discarding (D) contradicts the feature intent.