PDF H12-821_V1.0 Study Guide

Comprehensive and Detailed Step-by-Step Explanation:

Multi-Channel Protocols:

Multi-channel protocols use separate channels for control and data communication, requiring application-specific packet filtering (ASPF) to track sessions.

Examples:

FTP (A): Uses separate control and data channels.

SIP (B): Uses multiple ports for signaling and media.

H.323 (D): A VoIP protocol using multiple channels.

Single-Channel Protocol:

SMTP (C): A single-channel protocol for email communication, which does not require ASPF.

Comprehensive and Detailed Step-by-Step Explanation:

Interface ID in IPv6:

The interface ID is the last 64 bits of an IPv6 address, and it uniquely identifies an interface within a subnet.

It can be generated in three ways:

Manually Configured: Explicitly assigned by an administrator.

System-Generated: The operating system assigns a random or pseudo-random value.

EUI-64 Standard: Generated based on the MAC address of the interface.

Correct Statement:

IPv6 supports all three methods for generating interface IDs.

According to BGP route selection rules, a higher Local_Pref value indicates a more preferred route. This rule is used to influence traffic flow within an autonomous system (AS), giving preference to routes with a higher Local_Pref for outgoing traffic ​.

The native AC (Access Controller) function in Huawei's agile switches enables wired and wireless convergence. This integration allows the agile switch to act as both a wired network switch and a wireless controller, managing all traffic centrally. This architecture simplifies network management and improves efficiency, making the statement true ​.