A service provider delivers IPTV to subscribers in separate VLANs (100, 200, 300). The multicast source is in VLAN 100. To conserve bandwidth, you must ensure that multicast streams are delivered only to ports in VLANs that have active subscribers, while keeping the VLANs isolated for unicast traffic. Which configuration approach meets these requirements?

Configure MVR on the switch but disable IGMP snooping on the receiver VLANs.

Enable IGMP snooping on each VLAN and configure MVR with the source VLAN as the MVR VLAN.

Enable IGMP snooping on each VLAN and rely on the switch to flood multicast to all VLANs.

Create a separate VLAN for multicast and route it to each subscriber VLAN using PIM.

A multicast router receives a packet from source 10.1.1.1 on interface FastEthernet0/0. The unicast routing table shows that the route to 10.1.1.1 is via FastEthernet0/1. What action does the router take?

It forwards the packet out all interfaces except the incoming one.

It accepts the packet and forwards it based on the multicast routing table.

It sends an IGMP query to verify the source.

It drops the packet because the RPF check fails.

A network engineer is designing multicast routing for a network that uses EIGRP as the unicast routing protocol. They want to use PIM for multicast. Which statement is true regarding PIM's interaction with the unicast routing protocol?

PIM requires OSPF to be running for RPF checks.

PIM uses the multicast routing table built by EIGRP for forwarding decisions.

PIM is independent of the unicast routing protocol and uses its own routing table for RPF checks.

PIM must be configured with the same autonomous system number as EIGRP.

A hotel offers IPTV in multiple VLANs (e.g., VLAN 10, 20, 30) for different room types. The multicast source is in VLAN 10. The network administrator wants to avoid replicating the multicast stream for each VLAN and wants to maintain unicast isolation between VLANs. Which technology should be used?

Multicast VLAN Registration (MVR)

IGMP snooping with VLAN translation

VLAN trunking with multicast flooding

A large enterprise is deploying PIM-SM across multiple regions. They need a redundant RP solution that provides fast failover and load balancing across multiple RPs. They also want to avoid the complexity of MSDP. Which approach best meets these requirements?

Use BSR with multiple candidate RPs and rely on the BSR to elect a single active RP.

Use static RP with a floating static route to a backup RP.

Use a single RP with a high-availability protocol like HSRP.

Use Anycast RP with MSDP to synchronize source information between RPs.

CCIE Enterprise Infrastructure

Domain 1Objective 6

Multicast CCIE-ENTERPRISE-INFRASTRUCTURE Practice Questions (Page 5)

Part of the Network Infrastructure domain, which accounts for 30% of the CCIE-ENTERPRISE-INFRASTRUCTURE exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~15–24 in this domain), expect 3–4 from this objective — we provide 40 practice questions to prepare you well beyond it. (estimate)

40questions here

8free pages

12concepts

30%of the exam

Questions 21–25

21application · medium
A service provider delivers IPTV to subscribers in separate VLANs (100, 200, 300). The multicast source is in VLAN 100. To conserve bandwidth, you must ensure that multicast streams are delivered only to ports in VLANs that have active subscribers, while keeping the VLANs isolated for unicast traffic. Which configuration approach meets these requirements?
Select an answer first
22application · medium
A multicast router receives a packet from source 10.1.1.1 on interface FastEthernet0/0. The unicast routing table shows that the route to 10.1.1.1 is via FastEthernet0/1. What action does the router take?
Select an answer first
23application · medium
A network engineer is designing multicast routing for a network that uses EIGRP as the unicast routing protocol. They want to use PIM for multicast. Which statement is true regarding PIM's interaction with the unicast routing protocol?
Select an answer first
24application · medium
A hotel offers IPTV in multiple VLANs (e.g., VLAN 10, 20, 30) for different room types. The multicast source is in VLAN 10. The network administrator wants to avoid replicating the multicast stream for each VLAN and wants to maintain unicast isolation between VLANs. Which technology should be used?
Select an answer first
25expert · hard
A large enterprise is deploying PIM-SM across multiple regions. They need a redundant RP solution that provides fast failover and load balancing across multiple RPs. They also want to avoid the complexity of MSDP. Which approach best meets these requirements?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to CCIE-ENTERPRISE-INFRASTRUCTURE

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Cisco. “CCIE-ENTERPRISE-INFRASTRUCTURE” is a trademark of its owner, used for identification only.