Get Huawei H35-210_V2.5 Exam Practice Questions - Real and Updated

Answer : D

The Address Resolution Protocol (ARP) is used to map IP addresses to MAC addresses in a local network. ARP operates at the data link layer (Layer 2) of the OSI model and is essential for communication within a LAN.

ARP Request :

When a device needs to communicate with another device on the same network but does not know the destination's MAC address, it sends an ARP Request .

Since the sender does not know the MAC address of the destination, it cannot send the request directly to the destination using unicast. Instead, the ARP Request is sent as a broadcast packet to all devices on the local network.

The broadcast packet has a destination MAC address of FF:FF:FF:FF:FF:FF, which ensures that all devices on the network receive the packet.

ARP Response :

The device with the matching IP address responds with an ARP Reply , which is sent as a unicast packet back to the requesting device.

Why Not Other Options?

Anycast : This involves sending packets to the nearest device in a group of devices sharing the same IP address. ARP does not use anycast.

Unicast : ARP Requests cannot be sent as unicast because the sender does not yet know the destination's MAC address.

Multicast : Multicast is used for sending packets to a specific group of devices, but ARP Requests are sent to all devices on the network, making broadcast the correct choice.

Thus, ARP Requests are transmitted as broadcast packets .

HCIA Huawei ACCESS Official Documentation , Chapter: ARP Protocol and Operation.

Ethernet Networking Fundamentals by Huawei.

Answer : B

Answer : C

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 .

HCIA Huawei ACCESS Official Documentation , Chapter: VLAN Design.

IEEE 802.1ad QinQ Standards .

Answer : A, B, C

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.

Answer : B

When a router forwards packets, it selects the route with the longest prefix match (most specific route) for the destination address.

First Route : Matches 9.0.0.0/8, which covers all IP addresses starting with 9.

Second Route : Matches 9.1.0.0/16, which is more specific and covers IP addresses starting with 9.1.

For the destination address 9.1.4.5 , the second route (9.1.0.0/16) is a better match because it is more specific than the first route (9.0.0.0/8).

Option A : Incorrect. OSPF has a higher priority, but the longest prefix match takes precedence over priority.

Option B : Correct. The second route matches the destination address more accurately.

Option C : Incorrect. Metric is not considered when comparing routes with different prefix lengths.

Option D : Incorrect. Interface speed is irrelevant in route selection.

HCIA Huawei ACCESS Official Documentation , Chapter: IP Routing Table Selection.

Routing Principles and Longest Prefix Match by Huawei.