12 Backpressure & Scaling questions from the Message Queues 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 gap between the latest produced record and the position a reader has reached, indicating it is falling behind
B.the volume of messages a system can move through per unit of time
C.adding more reader instances to share partitions and raise aggregate processing capacity
D.a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
Answer + AI explanation with Pro
2. Which term means: "the gap between the latest produced record and the position a reader has reached, indicating it is falling behind"?
Mid
A.Backpressure
B.Consumer lag
C.Throughput
D.Horizontal consumer scaling
Answer + AI explanation with Pro
3. Which statement is correct?
Mid
A.Consumer lag — a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
B.Consumer lag — adding more reader instances to share partitions and raise aggregate processing capacity
C.Consumer lag — the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
D.Consumer lag — the volume of messages a system can move through per unit of time
Answer + AI explanation with Pro
4. What is Backpressure?
Mid
A.the volume of messages a system can move through per unit of time
B.a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
C.adding more reader instances to share partitions and raise aggregate processing capacity
D.the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
Answer + AI explanation with Pro
5. Which term means: "a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate"?
Mid
A.Backpressure
B.Throughput
C.Horizontal consumer scaling
D.Consumer lag
Answer + AI explanation with Pro
6. Which statement is correct?
Mid
A.Backpressure — a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
B.Backpressure — the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
C.Backpressure — adding more reader instances to share partitions and raise aggregate processing capacity
D.Backpressure — the volume of messages a system can move through per unit of time
Answer + AI explanation with Pro
7. What is Horizontal consumer scaling?
Senior
A.a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
B.the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
C.the volume of messages a system can move through per unit of time
D.adding more reader instances to share partitions and raise aggregate processing capacity
Answer + AI explanation with Pro
8. Which term means: "adding more reader instances to share partitions and raise aggregate processing capacity"?
Senior
A.Throughput
B.Horizontal consumer scaling
C.Consumer lag
D.Backpressure
Answer + AI explanation with Pro
9. Which statement is correct?
Senior
A.Horizontal consumer scaling — a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
B.Horizontal consumer scaling — adding more reader instances to share partitions and raise aggregate processing capacity
C.Horizontal consumer scaling — the volume of messages a system can move through per unit of time
D.Horizontal consumer scaling — the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
Answer + AI explanation with Pro
10. What is Throughput?
Senior
A.adding more reader instances to share partitions and raise aggregate processing capacity
B.the volume of messages a system can move through per unit of time
C.a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
D.the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
Answer + AI explanation with Pro
11. Which term means: "the volume of messages a system can move through per unit of time"?
Senior
A.Consumer lag
B.Backpressure
C.Throughput
D.Horizontal consumer scaling
Answer + AI explanation with Pro
12. Which statement is correct?
Senior
A.Throughput — the volume of messages a system can move through per unit of time
B.Throughput — the gap between the latest produced record and the position a reader has reached, indicating it is falling behind
C.Throughput — a feedback mechanism that slows producers when downstream consumers cannot keep up with the incoming rate
D.Throughput — adding more reader instances to share partitions and raise aggregate processing capacity
Answer + AI explanation with Pro
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