lru-cache Interview Questions
2 interview questions in our bank cover lru-cache, most of them Coding & Leetcode-style Questions. They average 3.5/5 difficulty — hard — and each one was reported by a candidate after a real interview. Companies known to ask about lru-cache: Commure.
Practice these on the problems board →Companies that ask about lru-cache
Question mix
- Coding & Leetcode-style Questions2
Difficulty
- 3/5 — medium1
- 4/5 — hard1
Questions tagged lru-cache
LRU Cache with TTL
3/5This reported interview question from Commure evaluates your ability to build a specialized caching mechanism that incorporates both capacity eviction and expiration times. You will need to implement standard retrieval and insertion operations while ensuring that stale entries are automatically purged based on a timestamp parameter. The challenge tests your proficiency with combined hash maps and ordered linked lists to maintain performance constraints. Access to the complete problem breakdown and the optimal model solution requires a subscription.
Coding & Leetcode-style QuestionsCommureImplement LRU Cache with TTL and Rate Limiter
4/5This advanced system design and coding challenge from Commure asks candidates to build a customized least recently used cache featuring individual expiration timers and basic rate limiting. The problem tests your mastery of composite data structures, efficient hash map and doubly linked list integrations, and time-based eviction policies. You will need to carefully manage state transitions, handle resource expiration, and enforce throughput restrictions within strict performance bounds. The full problem and model solution require a subscription.
Coding & Leetcode-style QuestionsCommure
Studied alongside
lru-cache interview FAQ
- How many lru-cache interview questions are there?
- 2 reported questions, mostly Coding & Leetcode-style Questions.
- Which companies ask lru-cache questions?
- Commure (2).
- How hard are lru-cache questions?
- They average 3.5 out of 5: 1 at 3/5, 1 at 4/5.