Database / ValKey Interview questions
What is the purpose of Valkey?
Valkey exists to give applications extremely fast, sub-millisecond access to data that would otherwise be slow to fetch from a disk-based database on every request.
Common purposes include caching to reduce load on a primary database, storing user sessions, powering real-time leaderboards with sorted sets, rate limiting with counters and TTLs, and acting as a lightweight message broker through pub/sub or streams.
A second purpose is organizational: Valkey gives teams a truly open source, community-governed alternative so they are not exposed to licensing changes controlled by a single vendor.
Valkey is primarily optimized for...
Which of these is NOT a typical Valkey use case?
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