Question

Is the CIDR prefix 1.2.3.4/29 valid? Why or why not?

Answer 1

Yes, the CIDR prefix 1.2.3.4/29 is valid. From the CIDR notation, where 1.2.3.4/29 defines the block of all IP addresses that is identical to “1.2.3.4” in the first 29 bits.