Web
All interview questions related to Web
7 Questions
2 Categories
3 Beginner4 Intermediate
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📞 Phone Screen
How DNS Resolution Works
IntermediateWalk me through the steps when you type a URL into your browser and press enter.
2 min•Phone
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HTTP Idempotent Methods
IntermediateWhich HTTP methods are idempotent and why does idempotency matter in API design?
2 min•Phone
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HTTP/1.1 vs HTTP/2
IntermediateName two key improvements HTTP/2 brings over HTTP/1.1 and why they matter.
2 min•Phone
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Purpose of a CDN
BeginnerWhat problem does a CDN solve and how does it improve user-perceived performance?
2 min•Phone
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DNS A Record vs CNAME
BeginnerWhat is the difference between an A record and a CNAME record in DNS, and when would you use each?
2 min•Phone
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DNS Propagation Basics
BeginnerWhat is DNS propagation, and why can DNS record changes take time to be visible globally?
2 min•Phone
View Question→🔧 Troubleshooting Scenarios
Sudden 5xx Spike on Web Tier
IntermediateProduction dashboards show a sharp increase in HTTP 5xx responses from the web tier over the last 10 minutes, but traffic volume is normal. Describe your step-by-step triage and remediation.
10 min•Scenario
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