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

Let us analyze each option:

Option A : Incorrect. A route does not include MAC addresses. It typically consists of a destination network, subnet mask, next-hop address, and outgoing interface.

Option B : Correct. IP routes are essential for guiding the forwarding of IP packets from the source to the destination. Routers use routing tables to determine the best path for packet delivery.

Option C : Incorrect. Routing is a concept at the network layer (Layer 3) of the OSI model, not the data link layer (Layer 2).

Option D : Incorrect. A route does not require the source address. It only needs the destination network, subnet mask, and next-hop information.

Thus, the correct answer is B .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: IP Routing Basics.

Routing Fundamentals in IP Networks by Huawei.

The MA5600T/MA5680T is a Huawei Optical Line Terminal (OLT) device used in GPON networks. The status of the control board's indicator lights provides critical information about the device's operational state.

Option A :

Incorrect : If the green light is on and off repeatedly without a specific pattern, it may indicate an unstable or faulty state.

Option B :

Correct : A steady green light indicates that the control board is running properly and is in a normal operating state. This is the expected status for a healthy control board.

Option C :

Incorrect : A blinking pattern of 0.5s on and 0.5s off typically indicates that the control board is in a transitional state, such as booting up or initializing.

Option D :

Incorrect : A rapid blinking pattern of 0.25s on and 0.25s off usually signifies an alarm or error condition.

Thus, the correct answer is B , as a steady green light indicates normal operation.

References:

HCIA Huawei ACCESS Official Documentation , Chapter: OLT Device Indicators.

MA5600T/MA5680T Maintenance Manual by Huawei.

A: Weak optical power prevents ONT registration.

B: Auto-find must be enabled for ONT discovery.

D: Excessive optical power saturates the receiver.

QinQ Overview :

QinQ (IEEE 802.1ad) is a double-tagging mechanism that adds an outer VLAN tag to an already tagged packet.

It is commonly used in carrier networks to extend VLAN capacity and support hierarchical VLAN architectures.

VLAN Types :

Sub VLAN : Part of a Super VLAN configuration, used for IP address conservation. Does not support QinQ.

Common VLAN : Supports only single-tag VLANs. Does not support QinQ.

Super VLAN : Aggregates multiple Sub VLANs for IP address sharing. Does not support QinQ.

Smart VLAN : Specifically designed to support advanced features like QinQ and VLAN stacking.

Why D?

Smart VLAN is the only VLAN type that supports QinQ and VLAN stacking, making it the correct choice.

Thus, the correct answer is D .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Design.

IEEE 802.1ad QinQ Standards .

2.4 GHz Frequency Band :

The 2.4 GHz band is divided into 14 overlapping channels, each 20 MHz wide.

However, only three channels (e.g., Channels 1, 6, and 11 in North America) are non-overlapping and can be used simultaneously without interference.

Why TRUE?

By using non-overlapping channels (e.g., 1, 6, and 11), wireless networks can operate concurrently without significant interference.

Thus, the correct answer is A .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: WLAN Frequency Bands.

IEEE 802.11 Standards for WLAN .

In a PON system, the OLT (Optical Line Terminal) and ONU (Optical Network Unit) use Ethernet interfaces externally to connect to the service provider’s network and end-user devices, respectively. Internally, the PON uses GEM (GPON Encapsulation Method) frames to encapsulate and decapsulate data for transmission over the optical distribution network (ODN).