Which class of BGP path attributes is supported by all BGP implementations and is not advertised between autonomous systems?
- optional transitive
- optional nontransitive
- well-known mandatory
- well-known discretionary
Explanation: The BGP prefix path attributes are classified as follows:
- Well-known mandatory – supported by all BGP implementations and advertised between autonomous systems
- Well-known discretionary – supported by all BGP implementations and not advertised between autonomous systems
- Optional transitive – supported by some BGP implementations and advertised between autonomous systems
- Optional nontransitive – supported by some BGP implementations and not advertised between autonomous systems
Related exam: Chapter 13: Quiz - BGP Path Selection CCNPv8 ENARSI
