Question

routing prefixes are assigned in blocks by iana and distributed by the regional internet registry (rir). what are these known as?

Answer 1

Routing prefixes assigned by IANA and distributed by RIRs are known as CIDR blocks, which help manage and route internet traffic efficiently.

Step-by-step explanation:

Routing prefixes, which are blocks of IP addresses used to facilitate efficient routing on the internet, are known as CIDR blocks (Classless Inter-Domain Routing). The Internet Assigned Numbers Authority (IANA) assigns these prefixes in blocks, and they are distributed by the Regional Internet Registry (RIR). CIDR blocks help in aggregating multiple IP addresses into a single routing prefix, making network management and the routing process more hierarchy-based and scalable.