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RIPv2 stands for Routing Information Protocol version 2. It is an enhancement over its predecessor, RIPv1, primarily used for routing decisions in smaller, localized networks such as within a single organization. Regarding RIPv2, the following statements are true:
1. Support for Classless Inter-Domain Routing (CIDR): Unlike RIPv1, which only supported classful routing, RIPv2 supports CIDR. This allows for more efficient use of IP addresses and subnetting.
2. Use of Multicast Addresses: RIPv2 sends updates using the multicast address 224.0.0.9, whereas RIPv1 sends updates to the broadcast address 255.255.255.255. This reduces unnecessary traffic on the network since only routers that are configured to listen for RIP updates will process them.
3. Route Authentication: RIPv2 supports route authentication, which helps in preventing the introduction of incorrect routing information due to misconfiguration or malicious intent. This was not available in RIPv1.
4. Triggered Updates: While both RIPv1 and RIPv2 support triggered updates, which are updates sent immediately in response to a change in the network topology, RIPv2’s use of triggered updates contributes to more efficient and secure routing information propagation.
5. Limitation on Hop Count: Both RIPv1 and RIPv2 limit the hop count to 15, making a hop count of 16 equivalent to an unreachable destination. This
C. it has the same timers as ripv1