Resilience
28 bites tagged Resilience: interview questions with model answers, and 60-second explainers.
Circuit Breaker Pattern: Fail Fast, Not Hard
A circuit breaker wraps network calls to prevent cascading failures. It monitors for errors, and if a service seems down, it 'trips' to fail requests instantly without hitting the network. This gives the failing service time to recover.
Object Versioning: A Safety Net for Cloud Files
Object Versioning treats every file change as a new version, not a replacement. It's used in cloud storage to recover from accidental overwrites or deletions. The footgun: you pay for all versions, so costs can multiply without cleanup policies.
Multi-cloud: Spreading Bets Across Cloud Providers
Multi-cloud is a strategy for using services from two or more cloud providers to avoid vendor lock-in. It's used to cherry-pick best-in-class services or improve resilience. The footgun is underestimating the complexity of managing disparate APIs and security.
Chaos Engineering: Break Systems to Build Confidence
Chaos Engineering is like a fire drill for your software: you intentionally break things in a controlled way to find weaknesses. It's used in distributed systems to test resilience against server failures or network latency.
Get Resilience bites daily.
Five a day, five minutes, offline. With quizzes so it sticks.
The iPhone app is on the way
We are building it. Until it lands, nothing here is held back from you: every interview card, your saved cards, streaks and the job board all work in Safari, plus hundreds of free practice quizzes of thirty questions each. Sign in and it all carries over to the app the day it arrives.
Want it as an icon? Tap Share at the bottom of Safari, then Add to Home Screen. It opens full screen and the cards you have read stay available offline.