Free Cisco 642-885 Exam Dumps Questions & Answers

Which multicast group range is reserved for SSM?

• A.239.0.0.0/8
• B.224.0.0.0/8
• C.225.0.0.0/8
• D.232.0.0.0/8

Which two statements correctly describe the RPF check when a multicast packet arrives at a router? (Choose two.)

• A.The router looks up the source address in the unicast routing table to determine if the packet has arrived on the interface that is on the reverse path back to the source
• B.If the packet has arrived on the interface leading back to the source, the RPF check passes and the packet is forwarded. If the RPF check fails, the packet is dropped
• C.The router looks up the destination address in the unicast routing table to determine if the packet has arrived on the interface that is on the reverse path back to the destination
• D.If the packet has arrived on the interface leading back to the destination, the RPF check passes and the packet is forwarded. If the RPF check fails, the packet is dropped

Refer to the exhibit. R2cannot to learn RP information from XR3. Which issue is the source of the problem?

• A.BGP IPv4 MDT address family is not enabled on XR3.
• B.R2 is learning the RP address via non-IGP routing protocol.
• C.Multicast routing is not enabled on the XR3 Loopback0 interface.
• D.XR3 is not the DR.
• E.Multicast routing is not enabled on the XR3 Giga0/0/0/0 interface.

To which three IP multicast groups can a multicast MAC address "01-00-5E-4D-62-B1" listen? (Choose three.)

• A.239.205.99.177
• B.224.205.99.177
• C.231.205.99.177
• D.224.205.98.177
• E.239.77.98.177
• F.231.205.98.177

The 224.192.16.1 multicast IP address maps to which multicast MAC address?

• A.01-00-5E-00-10-01
• B.01-00-5E-C0-16-01
• C.01-00-5E-C0-10-01
• D.01-00-5E-40-10-01