The message update format in RIPv1 does not have room for subnet mask information in the IP address field.

Name: The message update format in RIPv1 does not have room for subnet mask information in the IP address field.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

In RIPv1, the IP address field size is only 32 bits, leaving no room for subnet mask information. Therefore, each IP address is assumed to have a default subnet mask of 255.255.255.0. This limitation was addressed in RIPv2 by adding an additional field for subnet mask information.

The Message Update Format in RIPv1 Does Not Have Room