3 pages from the guide: the cover, the contents (50 questions in 6 sections) and one complete question with its answer, code and interview tips.
Redis shows up in almost every backend interview, usually through caching questions: how do you avoid a stampede, why is the cache stale, why does @Cacheable do nothing? This guide answers 50 questions in six sections: Redis fundamentals, caching patterns and failure modes, the Spring Cache abstraction, Spring Data Redis, distributed patterns such as locks, rate limiters and idempotency keys, and persistence, replication, Cluster and operations.
50 questions in 6 sections, 50 code examples in a 65-page PDF (2026 edition).
100 Java Collections Framework interview questions with detailed answers, code examples and performance tips.
No reviews yet
Read the quick answer first and say it aloud, then open the explanation and check what you missed. Try the redis-cli commands against a local Redis, and explain the failure-mode questions (stampede, penetration, avalanche, invalidation) in your own words.
A stampede (thundering herd) happens when a popular key expires and many requests miss at the same moment, so they all recompute it and hit the database together. Prevent it by letting only one caller rebuild the value (a per-key lock or single-flight), refreshing hot keys before they expire, serving stale data while one request refreshes, and adding TTL jitter.
It is a digital download (PDF). After payment it appears in your Library right away.
It covers this topic in depth. It is one topic from the TechTribers Java Interview Series, which has all 23 parts (1,200+ questions) in one bundle.
No reviews yet — be the first to review this product.
A library of 12+ Java e-books covering basics, OOP, DSA, problem solving and interview prep.
No reviews yet
The all-in-one Java bundle: 3000+ interview questions, 50+ e-books, 500+ coding problems, DSA notes and bonus courses.
No reviews yet
Tech Tribers