ACSP ACSP - Aruba Certified Switching Professional Multicast and IGMP Snooping Questions and Answers 2

Question 1

What is the benefit of enabling IGMP fast-leave on an AOS-CX switch port?

Accepted Answer

It immediately removes a port from a multicast group upon receiving a leave message without waiting for a group-specific query

Answer

It speeds up IGMP query response timers

Answer

It accelerates multicast routing convergence across VLANs

Answer

It reduces the IGMP general query interval

Question 2

What is the default IGMP general query interval on AOS-CX, as defined by the IGMPv2 and v3 standards?

Accepted Answer

125 seconds

Answer

30 seconds

Answer

60 seconds

Answer

180 seconds

Question 3

Which AOS-CX command displays the multicast groups and associated member ports learned via IGMP snooping?

Accepted Answer

show ip igmp snooping groups

Answer

show ip igmp groups

Answer

show multicast groups

Answer

show igmp membership

Question 4

How does an AOS-CX switch dynamically identify a port as an mrouter (multicast router) port when IGMP snooping is enabled?

Accepted Answer

By receiving IGMP queries or PIM hello messages on that port

Answer

By detecting CDP or LLDP advertisements from the router

Answer

By observing high volumes of multicast traffic ingressing the port

Answer

By matching the port MAC address against a configured list

Question 5

When IGMP fast-leave is disabled and the last leave message is received for a group, what action does the AOS-CX switch take before removing the port?

Accepted Answer

Sends a group-specific query to confirm no remaining members exist before removing the port

Answer

Immediately removes the port from the group

Answer

Floods traffic to all VLAN ports temporarily

Answer

Drops all subsequent multicast traffic for that group

Question 6

Which well-known multicast address does IGMPv2 use to address the All-Routers group?

Accepted Answer

224.0.0.2

Answer

224.0.0.1

Answer

224.0.0.9

Answer

224.0.0.5