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Support Escalation Engineer Interview Questions

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492 support escalation engineer interview questions shared by candidates

1. Explain what happens behind the scenes when you enter www.cloudflare.com in your browser 2. What is CDN and how does it work? 3. Explain some attacks on Layer ¾ and Layer 7 of OSI model 4. Explain TCP 3-way handshake and closure of the connection 5. Diff between TCP and UDP 6. Why would there be TCP retransmission? What does it denote? 7. What do you understand by Zero Trust? What are some zero trust measures that can be implemented at Layer 7 and Layer 3/4 of OSI model? 8. What is the diff between SAML and OAuth? 9. Diff between identity based and non-identity based policy 10. Diff between zero trust vs castle and moat 11. What is an IP packet? 12. What is MTU and MSS? 13. What is WAF? How does it work? 14. What is a bot and how does it work? What is bot management? 15. Describe a few attacks on layer ¾ 16. Describe attacks on layer 7 17. What are different types of DNS records? 18. What is subnet? 19. HTTP error codes and what they mean 20. What is BGP? 21. Layer 3 protocols 22. Diff between GRE and IPSec 23. Why Cloudflare?
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Escalation Engineer

Interviewed at Cloudflare

3.3★
May 14, 2025

1. Explain what happens behind the scenes when you enter www.cloudflare.com in your browser 2. What is CDN and how does it work? 3. Explain some attacks on Layer ¾ and Layer 7 of OSI model 4. Explain TCP 3-way handshake and closure of the connection 5. Diff between TCP and UDP 6. Why would there be TCP retransmission? What does it denote? 7. What do you understand by Zero Trust? What are some zero trust measures that can be implemented at Layer 7 and Layer 3/4 of OSI model? 8. What is the diff between SAML and OAuth? 9. Diff between identity based and non-identity based policy 10. Diff between zero trust vs castle and moat 11. What is an IP packet? 12. What is MTU and MSS? 13. What is WAF? How does it work? 14. What is a bot and how does it work? What is bot management? 15. Describe a few attacks on layer ¾ 16. Describe attacks on layer 7 17. What are different types of DNS records? 18. What is subnet? 19. HTTP error codes and what they mean 20. What is BGP? 21. Layer 3 protocols 22. Diff between GRE and IPSec 23. Why Cloudflare?

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