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H13-831_V2.0 · Question #2491

In Huawei Cloud, latency refers to the time it takes from initiating a request to receiving a response. In APM, overall latency refers to the total duration of the entire request, while service…

The correct answer is A. The overall latency of service A = Ta, and the service latency = Ta - Tb1 - Tb2 - Tc. D. Overall delay of service B = Tb1 + Tb2 + Tc, service delay = Tb1 + Tb2. See the full explanation below for the reasoning.

Cloud Governance, O&M, and DevOps Architecture

Question

In Huawei Cloud, latency refers to the time it takes from initiating a request to receiving a response. In APM, overall latency refers to the total duration of the entire request, while service latency refers to the duration of a single service, which is the overall duration minus the duration of calling other installed probe services. As shown in the figure, there are services A, B, and C. A calls B, and B calls C. Which of the following descriptions of service latency are correct? (Multiple choice)

Options

  • AThe overall latency of service A = Ta, and the service latency = Ta - Tb1 - Tb2 - Tc.
  • BThe overall latency of service B = Tb1 + Tb2 + Tc, and the service latency = Tc.
  • CA service overall delay = Tb1 + Tb2 + Tc, service delay = Tb1 + Tb2
  • DOverall delay of service B = Tb1 + Tb2 + Tc, service delay = Tb1 + Tb2

How the community answered

(38 responses)
  • A
    76% (29)
  • B
    16% (6)
  • C
    8% (3)

Topics

#APM#service latency#overall latency#microservice tracing

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