200-301 Question 105

Community Discussion

Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.

• Chose C3

  C. Anycast address Anycast addresses are assigned to multiple devices, and the packet is delivered to the nearest (in terms of routing distance) of those devices. While multicast addresses are used for delivering packets to multiple devices, anycast addresses can be assigned to multiple devices on the same network, and the packet is delivered to the closest one.

• 3

  An anycast address is more similar to a unicast address than a multicast address, as like a unicast an anycast can be assigned (configured) (eg DNS) on multiple devices in different geographic locations or parts of the network. Now a multicast is not a configurable address (assigned), it only sends to a group of devices on the same network.

• Chose C14

  An anycast address is similar to a unicast address but is assigned to multiple devices on the same network at the same time. When a device sends a packet to an anycast address, it is delivered to one of the devices with that address, selected based on the routing protocol's best-effort algorithm. This is useful for applications like load balancing and failover, where multiple devices provide the same service and it doesn't matter which one handles a particular request.