24 QoS & Traffic Shaping questions from the Networking 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.setting the Differentiated Services field in the IP header to classify a packet's priority
B.enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
D.the maximum data rate a link can carry, typically measured in bits per second
Answer + AI explanation with Pro
2. Which term means: "the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements"?
Junior
A.Low-latency queuing (LLQ)
B.DSCP marking
C.Traffic shaping
D.Quality of Service (QoS)
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Quality of Service (QoS) — enforcing a rate limit by dropping or remarking packets that exceed a threshold
B.Quality of Service (QoS) — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
C.Quality of Service (QoS) — the maximum data rate a link can carry, typically measured in bits per second
D.Quality of Service (QoS) — a strict-priority queue that services delay-sensitive traffic like voice ahead of others
Answer + AI explanation with Pro
4. What is Bandwidth?
Junior
A.the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
B.smoothing bursts by buffering excess packets and releasing them at a configured rate
C.enforcing a rate limit by dropping or remarking packets that exceed a threshold
D.the maximum data rate a link can carry, typically measured in bits per second
Answer + AI explanation with Pro
5. Which term means: "the maximum data rate a link can carry, typically measured in bits per second"?
Junior
A.Bandwidth
B.Traffic shaping
C.Quality of Service (QoS)
D.Traffic policing
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.Bandwidth — setting the Differentiated Services field in the IP header to classify a packet's priority
B.Bandwidth — the variation in packet arrival delay that degrades real-time voice and video
C.Bandwidth — the maximum data rate a link can carry, typically measured in bits per second
D.Bandwidth — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
Answer + AI explanation with Pro
7. What is Jitter?
Junior
A.the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
B.the variation in packet arrival delay that degrades real-time voice and video
C.the maximum data rate a link can carry, typically measured in bits per second
D.smoothing bursts by buffering excess packets and releasing them at a configured rate
Answer + AI explanation with Pro
8. Which term means: "the variation in packet arrival delay that degrades real-time voice and video"?
Junior
A.Low-latency queuing (LLQ)
B.Traffic policing
C.Jitter
D.Weighted fair queuing (WFQ)
Answer + AI explanation with Pro
9. Which statement is correct?
Junior
A.Jitter — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
B.Jitter — enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.Jitter — a scheduler that allocates bandwidth among flows in proportion to assigned weights
D.Jitter — the variation in packet arrival delay that degrades real-time voice and video
Answer + AI explanation with Pro
10. What is DSCP marking?
Mid
A.setting the Differentiated Services field in the IP header to classify a packet's priority
B.enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.smoothing bursts by buffering excess packets and releasing them at a configured rate
D.the variation in packet arrival delay that degrades real-time voice and video
Answer + AI explanation with Pro
11. Which term means: "setting the Differentiated Services field in the IP header to classify a packet's priority"?
Mid
A.Weighted fair queuing (WFQ)
B.Low-latency queuing (LLQ)
C.DSCP marking
D.Jitter
Answer + AI explanation with Pro
12. Which statement is correct?
Mid
A.DSCP marking — the maximum data rate a link can carry, typically measured in bits per second
B.DSCP marking — a strict-priority queue that services delay-sensitive traffic like voice ahead of others
C.DSCP marking — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
D.DSCP marking — setting the Differentiated Services field in the IP header to classify a packet's priority
Answer + AI explanation with Pro
13. What is Traffic policing?
Mid
A.setting the Differentiated Services field in the IP header to classify a packet's priority
B.enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.the variation in packet arrival delay that degrades real-time voice and video
D.the maximum data rate a link can carry, typically measured in bits per second
Answer + AI explanation with Pro
14. Which term means: "enforcing a rate limit by dropping or remarking packets that exceed a threshold"?
Mid
A.Weighted fair queuing (WFQ)
B.Quality of Service (QoS)
C.Bandwidth
D.Traffic policing
Answer + AI explanation with Pro
15. Which statement is correct?
Mid
A.Traffic policing — the variation in packet arrival delay that degrades real-time voice and video
B.Traffic policing — enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.Traffic policing — a scheduler that allocates bandwidth among flows in proportion to assigned weights
D.Traffic policing — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
Answer + AI explanation with Pro
16. What is Traffic shaping?
Mid
A.the variation in packet arrival delay that degrades real-time voice and video
B.smoothing bursts by buffering excess packets and releasing them at a configured rate
C.the maximum data rate a link can carry, typically measured in bits per second
D.a strict-priority queue that services delay-sensitive traffic like voice ahead of others
Answer + AI explanation with Pro
17. Which term means: "smoothing bursts by buffering excess packets and releasing them at a configured rate"?
Mid
A.Quality of Service (QoS)
B.Bandwidth
C.Traffic policing
D.Traffic shaping
Answer + AI explanation with Pro
18. Which statement is correct?
Mid
A.Traffic shaping — the maximum data rate a link can carry, typically measured in bits per second
B.Traffic shaping — the variation in packet arrival delay that degrades real-time voice and video
C.Traffic shaping — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
D.Traffic shaping — smoothing bursts by buffering excess packets and releasing them at a configured rate
Answer + AI explanation with Pro
19. What is Weighted fair queuing (WFQ)?
Senior
A.enforcing a rate limit by dropping or remarking packets that exceed a threshold
B.a scheduler that allocates bandwidth among flows in proportion to assigned weights
C.smoothing bursts by buffering excess packets and releasing them at a configured rate
D.a strict-priority queue that services delay-sensitive traffic like voice ahead of others
Answer + AI explanation with Pro
20. Which term means: "a scheduler that allocates bandwidth among flows in proportion to assigned weights"?
Senior
A.Low-latency queuing (LLQ)
B.Weighted fair queuing (WFQ)
C.Traffic shaping
D.Quality of Service (QoS)
Answer + AI explanation with Pro
21. Which statement is correct?
Senior
A.Weighted fair queuing (WFQ) — setting the Differentiated Services field in the IP header to classify a packet's priority
B.Weighted fair queuing (WFQ) — enforcing a rate limit by dropping or remarking packets that exceed a threshold
C.Weighted fair queuing (WFQ) — the set of techniques that prioritize certain traffic to meet latency and bandwidth requirements
D.Weighted fair queuing (WFQ) — a scheduler that allocates bandwidth among flows in proportion to assigned weights
Answer + AI explanation with Pro
22. What is Low-latency queuing (LLQ)?
Senior
A.enforcing a rate limit by dropping or remarking packets that exceed a threshold
B.a scheduler that allocates bandwidth among flows in proportion to assigned weights
C.a strict-priority queue that services delay-sensitive traffic like voice ahead of others
D.smoothing bursts by buffering excess packets and releasing them at a configured rate
Answer + AI explanation with Pro
23. Which term means: "a strict-priority queue that services delay-sensitive traffic like voice ahead of others"?
Senior
A.Bandwidth
B.Traffic shaping
C.Low-latency queuing (LLQ)
D.Weighted fair queuing (WFQ)
Answer + AI explanation with Pro
24. Which statement is correct?
Senior
A.Low-latency queuing (LLQ) — a strict-priority queue that services delay-sensitive traffic like voice ahead of others
B.Low-latency queuing (LLQ) — the variation in packet arrival delay that degrades real-time voice and video
C.Low-latency queuing (LLQ) — smoothing bursts by buffering excess packets and releasing them at a configured rate
D.Low-latency queuing (LLQ) — setting the Differentiated Services field in the IP header to classify a packet's priority
Answer + AI explanation with Pro
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