What is TTL in cache?

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Tags

1. #record
2. #value
3. #example
4. #purpose
5. #nameserver
6. #domain
7. #which
8. #known
9. #86400
10. #seconds
11. #system
12. #cache
13. #storing
14. #storage
15. #resource
16. #authoritative
17. #dnsknowledge
18. #records
19. #caching
20. #called
21. #hours