12 Trade-offs questions from the Caching bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
Free to start: the 2-minute IT readiness check — six questions and a result.
A.choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
B.the period of poor hit rates right after startup before a store has accumulated useful entries
C.the balance between consuming more RAM to retain entries and accepting slower fetches from the source
D.the tension between serving the most current data and minimizing expensive recomputation or fetches
Answer + AI explanation with Pro
2. Which term means: "the balance between consuming more RAM to retain entries and accepting slower fetches from the source"?
Junior
A.Freshness versus performance
B.Working set sizing
C.Warm-up cost
D.Memory versus speed
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Memory versus speed — the balance between consuming more RAM to retain entries and accepting slower fetches from the source
B.Memory versus speed — choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
C.Memory versus speed — the tension between serving the most current data and minimizing expensive recomputation or fetches
D.Memory versus speed — the period of poor hit rates right after startup before a store has accumulated useful entries
Answer + AI explanation with Pro
4. What is Freshness versus performance?
Mid
A.the tension between serving the most current data and minimizing expensive recomputation or fetches
B.the balance between consuming more RAM to retain entries and accepting slower fetches from the source
C.the period of poor hit rates right after startup before a store has accumulated useful entries
D.choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
Answer + AI explanation with Pro
5. Which term means: "the tension between serving the most current data and minimizing expensive recomputation or fetches"?
Mid
A.Freshness versus performance
B.Memory versus speed
C.Warm-up cost
D.Working set sizing
Answer + AI explanation with Pro
6. Which statement is correct?
Mid
A.Freshness versus performance — the balance between consuming more RAM to retain entries and accepting slower fetches from the source
B.Freshness versus performance — the tension between serving the most current data and minimizing expensive recomputation or fetches
C.Freshness versus performance — choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
D.Freshness versus performance — the period of poor hit rates right after startup before a store has accumulated useful entries
Answer + AI explanation with Pro
7. What is Working set sizing?
Mid
A.the period of poor hit rates right after startup before a store has accumulated useful entries
B.the balance between consuming more RAM to retain entries and accepting slower fetches from the source
C.the tension between serving the most current data and minimizing expensive recomputation or fetches
D.choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
Answer + AI explanation with Pro
8. Which term means: "choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries"?
Mid
A.Warm-up cost
B.Working set sizing
C.Freshness versus performance
D.Memory versus speed
Answer + AI explanation with Pro
9. Which statement is correct?
Mid
A.Working set sizing — the period of poor hit rates right after startup before a store has accumulated useful entries
B.Working set sizing — the balance between consuming more RAM to retain entries and accepting slower fetches from the source
C.Working set sizing — the tension between serving the most current data and minimizing expensive recomputation or fetches
D.Working set sizing — choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
Answer + AI explanation with Pro
10. What is Warm-up cost?
Senior
A.choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
B.the period of poor hit rates right after startup before a store has accumulated useful entries
C.the balance between consuming more RAM to retain entries and accepting slower fetches from the source
D.the tension between serving the most current data and minimizing expensive recomputation or fetches
Answer + AI explanation with Pro
11. Which term means: "the period of poor hit rates right after startup before a store has accumulated useful entries"?
Senior
A.Memory versus speed
B.Working set sizing
C.Warm-up cost
D.Freshness versus performance
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.Warm-up cost — the period of poor hit rates right after startup before a store has accumulated useful entries
B.Warm-up cost — choosing capacity large enough to hold the actively accessed data without wasting memory on cold entries
C.Warm-up cost — the balance between consuming more RAM to retain entries and accepting slower fetches from the source
D.Warm-up cost — the tension between serving the most current data and minimizing expensive recomputation or fetches
Answer + AI explanation with Pro
Free to start
Start with a free readiness check
Sign up free for the 2-minute IT readiness check and a scored result. Answers, explanations and the AI tutor on every Trade-offs question come with Pro.