An engineer is configuring multicast for wireless for an all-company video meeting on a network using EIGRP and BGP within a single domain from a single source. Which type of multicast routing should be implemented?
The question asks "type of routing" used, SSM consists of multiple protocols and uses PIM Sparse mode for routing https://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_cfg_ssm.html
D is right.
Pim Sparse uses a distributed way to deliver multicast to the devices that asked for this traffic.
In Dense mode the multicast traffic will be flooded out to all devices in periodic time, causing lot of traffic overhead.
I think B is correct
PIM Source-Specific Multicast (PIM-SSM) builds trees that are rooted in just one source, offering a more secure and scalable model for a limited number of applications (mostly broadcasting of content). In SSM, an IP datagram is transmitted by a source S to an SSM destination address G, and receivers can receive this datagram by subscribing to channel (S,G). See informational RFC 3569.
seems to be the D is correct.
Protocol Independent Multicast–Sparse Mode (PIM–SM or PIM) is the routing protocol most suited to get multicast routing up and running within a single domain
http://www.telfor.rs/telfor2002/radovi/2-19.pdf
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