What is the term used to identify networks that present a clearly defined external routing policy to the Internet.
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A. B. C. D.Answer - A.
Autonomous System numbers are used to identify networks that present a clearly defined external routing policy to the Internet.
AWS Direct Connect requires an ASN to create a public or private virtual interface.
You may use a public ASN which you own, or you can pick any private ASN number between 64512 to 65535 range.
For more information on Autonomous System numbers, one can visit the below URL:
https://en.wikipedia.org/wiki/Autonomous_system_(Internet)The term used to identify networks that present a clearly defined external routing policy to the Internet is Autonomous System numbers (ASNs).
An Autonomous System (AS) is a collection of interconnected networks that operate under a common administrative domain and share a routing policy. Each AS is identified by a unique ASN, a 32-bit number assigned by the Internet Assigned Numbers Authority (IANA) or a Regional Internet Registry (RIR).
When an AS wants to advertise its routes to other ASes, it uses an external routing protocol such as Border Gateway Protocol (BGP). BGP is a path-vector protocol that allows ASes to exchange routing information and make informed routing decisions. ASes use BGP to advertise their routes to neighboring ASes and receive routes from them.
A clearly defined external routing policy means that the AS has a clear set of rules that dictate how it will route traffic to and from the Internet. For example, an AS may choose to only allow traffic from certain IP addresses or ASes, or it may prioritize traffic from certain networks over others.
In summary, Autonomous System numbers are used to identify networks that have a clearly defined external routing policy to the Internet. This allows ASes to exchange routing information and make informed routing decisions.