Which BGP attribute is used by BGP to prevent routing loops? Select the best response.

A.
AS-path

B.
next-hop

C.
MED

D.
weight

E.
local preference

F.
origin

Explanation:
The AS-PATH attribute is used to prevent BGP routing loops. When receiving an BGP
advertisement, the router checks the AS-PATH attribute, if it see it’s own AS number in the
AS-Path then it is a routing loop so the router will not install this route in its BGP table.