What does TCP do?

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5. What does a relay server do?
6. Why pop3 is better than IMAP?
7. What is the function of POP protocol?
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Tags

1. #protocols
2. #streams
3. #networks
4. #packets
5. #enables
6. #hosts
7. #establish
8. #protocol
9. #connection
10. #guarantees
11. #which
12. #whereas
13. #exchange
14. #delivered
15. #deals
16. #delivery
17. #order