HCIP-Datacom H12-821_V1.0 Full Course Free

 GMP Snooping Proxy

IGMP snooping proxy allows the switch to substitute for upstream Layer 3 devices and downstream hosts, reducing unnecessary bandwidth consumption by consolidating IGMP messages.

 HCIP-Datacom-Core Reference

The IGMP snooping proxy functionality is described in multicast optimization and IGMP configuration chapters​​

In IS-IS:

Level-1 routerscan only form neighbor relationships with other Level-1 routersin the same area.

Level-2 routerscan form neighbor relationships with other Level-2 routersregardless of area ID.

Level-1-2 routerscan form relationships at both levels depending on the peer's configuration.

So, iftwo Level-1 routershavedifferent area addresses, theycannotestablish a neighbor relationship.

Reference from Huawei HCIP-Datacom-Core Technology Study Guide:

“Level-1 routers must have the same area address to establish neighbor relationships. Level-2 routers can peer across different areas.”

(Chapter: IS-IS Protocol Principles – Section: Neighbor Establishment)

The defaultSTP priorityon Huawei switches (and in the IEEE standard) is32768.

Lower priority values increase the likelihood of a switch becoming the root bridge. You can configure this value in increments of 4096.

Reference from Huawei HCIP-Datacom-Core Technology Study Guide:

“The default bridge priority of Huawei switches is 32768. The root bridge is elected based on the lowest bridge ID, which consists of the priority and MAC address.”

(Chapter: Spanning Tree Protocols – Section: RSTP and Bridge Election)

Comprehensive and Detailed Step-by-Step Explanation:

Portal Authentication:

Portal authentication uses a web-based mechanism where clients are redirected to a login page.

Communication between the access device and Portal server uses HTTP or HTTPS protocols.

Correct Statements:

Option A:HTTP or HTTPS is used for Portal authentication.

Option D:Portal protocol packets are transmitted overTCPfor reliable communication.

Incorrect Statements:

Option B:Port 2000 is not the default for processing Portal packets.

Option C:The default destination port for communication with the Portal server is not 50100.