200-101 Question #143: Real Exam Question with Answer & Explanation

The correct answer is B: FF02::9. RIPng (RIP next generation for IPv6) uses FF02::9 as its link-local multicast address for sending routing updates, equivalent to the 224.0.0.9 multicast address used by RIPv2 in IPv4. Key IPv6 well-known link-local multicast addresses: FF02::1 (all nodes), FF02::2 (all routers),

Question

Which address is the IPv6 all-RIP-routers multicast group address that is used by RIPng as the destination address for RIP updates?

Options

AFF02::6
BFF02::9
CFF05::101
DFF02::A
EFF02::13

Explanation

RIPng (RIP next generation for IPv6) uses FF02::9 as its link-local multicast address for sending routing updates, equivalent to the 224.0.0.9 multicast address used by RIPv2 in IPv4. Key IPv6 well-known link-local multicast addresses: FF02::1 (all nodes), FF02::2 (all routers), FF02::5 (all OSPF routers), FF02::6 (all OSPF DR/BDR routers), FF02::9 (all RIPng routers), FF02::A (all EIGRP routers), FF02::D (all PIM routers). FF05::101 is a site-local multicast address for NTP servers. Knowing these reserved multicast addresses is essential for IPv6 routing protocol operation.

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