Exam HPE6-A73 topic 1 question 28 discussion

The correct Answer is A

Correct answer is A

A is the correct aswer

IGMP is a L3 protocol and disabled bu default. A/B/C do not match these criteria. Awnser = D

A is correct : https://www.arubanetworks.com/techdocs/AOS-CX/10.11/HTML/cli_6200/Content/Chp_igmp_sno/igmp_sno_cmds/ip-igm-sno-vlan.htm

Page 565 Study Guide: One exception applies: an IGMP snooping switch DOES forward both unknown and known multicasts on any port on which it has heard IGMP queries – port 1/1 in the figure. This behavior is required so that a multicast stream can reach the multicast router. In fact, by default, the switch forwards unknown multicasts that arrive on one VLAN on any port on which it has heard queries in any VLAN. To c h a n g e t h i s b e h a v i o r a n d r e s t r i c t f o r w a r d i n g t o q u e r i e r p o r t s f o r t h a t s p e c i f i c V L A N , e n t e r the command: Switch(config)# ip igmp snooping drop- unknown vlan- exclusive [Aruba Networks]

Disregard my answer of B. The correct answer is A :)

B: On Aruba AOS-CX switches, IGMP query functions are enabled by default on Layer-2 VLAN interfaces. IGMP (Internet Group Management Protocol) queries are used to discover multicast group memberships and maintain the multicast group membership information within a VLAN. When IGMP snooping is enabled on a Layer-2 VLAN interface, the switch actively sends IGMP queries to the hosts within the VLAN to discover which multicast groups they are interested in. These queries allow the switch to build and maintain the multicast forwarding tables, ensuring that multicast traffic is forwarded only to the ports where interested receivers are located. A is incorrect: on Aruba AOS-CX switches, IGMP snooping is enabled by default on Layer-2 VLAN interfaces. IGMP snooping is a feature that allows switches to monitor IGMP messages exchanged between hosts and multicast routers, enabling the switch to learn which hosts are interested in receiving specific multicast traffic and selectively forward the multicast traffic to those hosts.

IGMP default configuration: IGMP is disabled by default. The default IGMP version is IGMPv3. https://www.arubanetworks.com/techdocs/AOS-CX/10.07/PDF/5200-7876.pdf page17

I think it is D

Correct answer is A

Correct answer is A

I think the answer is A

I agree the answer should be A

The answer should be A

I think the answer is A