Home » Cisco » 400-201 » Which solution meets these requirements:
Which solution meets these requirements:
-prevent multicast transit
-reduce overall processing of pim controll
-protect against multicast spoofing
A. PIM allow RP
B. explicit tracking of receivers
C. multicast stub routing
D. source specific multicast
Correct Answer: C
Explanation/Reference:
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/15-s/imc-pim-15-sbook/imc_stub_routing.html
Multicast stub routing can be used for the following purposes:
-To prevent multicast transit when it is enforced by unicast stub routing.
-To eliminate periodic flooding and pruning of dense mode traffic on low bandwidth links.
– To reduce overall processing of Protocol Indendent Multicast (PIM) control traffic; and protect against multicast spoofing of PIM Designated Router (DR) messages and PIM assert messages.
