12 Thread Pools questions from the Concurrency bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
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A.the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
B.a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
C.a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
D.a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
Answer + AI explanation with Pro
2. Which term means: "a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency"?
Junior
A.Task scheduling
B.Backpressure
C.Thread pool
D.Work stealing
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Thread pool — a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
B.Thread pool — a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
C.Thread pool — a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
D.Thread pool — the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
Answer + AI explanation with Pro
4. What is Work stealing?
Senior
A.a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
B.a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
C.the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
D.a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
Answer + AI explanation with Pro
5. Which term means: "a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load"?
Senior
A.Task scheduling
B.Work stealing
C.Thread pool
D.Backpressure
Answer + AI explanation with Pro
6. Which statement is correct?
Senior
A.Work stealing — a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
B.Work stealing — the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
C.Work stealing — a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
D.Work stealing — a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
Answer + AI explanation with Pro
7. What is Task scheduling?
Mid
A.a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
B.a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
C.the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
D.a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
Answer + AI explanation with Pro
8. Which term means: "the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness"?
Mid
A.Task scheduling
B.Backpressure
C.Work stealing
D.Thread pool
Answer + AI explanation with Pro
9. Which statement is correct?
Mid
A.Task scheduling — a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
B.Task scheduling — the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
C.Task scheduling — a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
D.Task scheduling — a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
Answer + AI explanation with Pro
10. What is Backpressure?
Mid
A.a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
B.a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
C.the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
D.a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
Answer + AI explanation with Pro
11. Which term means: "a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth"?
Mid
A.Backpressure
B.Thread pool
C.Work stealing
D.Task scheduling
Answer + AI explanation with Pro
12. Which statement is correct?
Mid
A.Backpressure — a scheduling strategy where an idle worker takes pending tasks from the back of a busier worker's own queue to balance load
B.Backpressure — a mechanism that slows or rejects new submissions when a queue or consumer cannot keep up, preventing unbounded resource growth
C.Backpressure — the policy deciding which queued unit of work runs on which worker and in what order to optimize throughput or fairness
D.Backpressure — a managed set of pre-created worker threads that pull tasks from a queue, amortizing creation cost and bounding concurrency
Answer + AI explanation with Pro
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