Who uses data centers?

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5. What is a VDS server?
6. Why are dedicated servers better for gaming?
7. What is a Tier 5 data center?
8. What is a Tier 4?
9. What is the difference between Tier 3 and Tier 4 data center?
10. What makes a Tier 4 data center?

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4. #companies
5. #government
6. #telecommunications
7. #bodies
8. #educational
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13. #networking
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15. #google
16. #entity
17. #sizes
18. #information
19. #centers
20. #financial
21. #generates
22. #social
23. #retailers