The Company WAN is migrating from RIPv1 to RIPv2. Which three statements are correct about
RIP version 2? (Choose three)

A.
It has the same maximum hop count as version 1.

B.
It uses broadcasts for its routing updates.

C.
It is a classless routing protocol.

D.
It has a lower default administrative distance than RIP version 1.

E.
It supports authentication.

F.
It does not send the subnet mask in updates.

Explanation:
RIPV1
RIPV1 is a classful routing protocol , it sends update packets which does not contain subnet mask
information every 30 seconds , it does not support VLSM and performs border automatic route
summary by default, it can’t be shut down, so it does not support non-consecutive networks and
authentication, it uses hop counts as metric, the administrative distance is 120. Each packet
contains 25 routing information at most , and routing update is broadcast.
RIPV2

RIPV2 is a classless routing protocol, whose transmitted packets contain subnet mask information,
it supports VLSM and enables the function of auto-summary. So, it is needed to manually shut
down the function of auto-summary in order to send subnet information to the main network.
RIPV2 only supports summarizing routing to the main network instead of summarizing different
main networks. So it does not support CIDR. RIPV2 updates routing by use of the multicast
address 224.0.0.9, only the corresponding multicast MAC address can reply to packets. Whether
reply to packets and support authentication or not can be distinguished at the MAC layer.
NotE. Refer to the classful routing protocol, when the subnet of the interface sending routing
packets is in the same main network as the subnet associated with the packets, the router can
transmit subnet information through this interface assuming that the interface and the subnet of
packets use the same subnet mask.