Why BGP is called path vector protocol?

Related questions

1. What is cluster list in BGP?
2. Can we use local preference outside the autonomous system?
3. How do you prefer Eigrp over BGP?
4. What is an AS path?
5. What is as prepend in BGP?
6. What are BGP path attributes?
7. What is next hop self in BGP?
8. Does ASA support BGP?
9. Does BGP use TCP or UDP?
10. What is BGP local preference?

Tags

1. #routers
2. #gateway
3. #information
4. #networks
5. #vector
6. #reachability
7. #border
8. #boundary
9. #routing
10. #which
11. #dynamically
12. #messages
13. #network
14. #system
15. #autonomous
16. #advertise
17. #example
18. #updated
19. #maintains
20. #protocol