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[General] High DevOps-SRE Quality | DevOps-SRE New APP Simulations

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【General】 High DevOps-SRE Quality | DevOps-SRE New APP Simulations

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Peoplecert PeopleCert DevOps Site Reliability Engineer (SRE) Sample Questions (Q37-Q42):NEW QUESTION # 37
Which of the following terms is BEST described by the definition below?
The probability that the system will meet certain performance standards and yield correct output for a specific time.
  • A. Reliability
  • B. Durability
  • C. Availability
  • D. Throughput
Answer: A

NEW QUESTION # 38
When outages are repetitive and similar, they become a form of toil.
Which of the following describes the MOST compelling reason to adopt advanced technologies and artificial intelligence (AI)?
  • A. To increase reliability by reducing MTTR and MTRS
  • B. To increase reliability and achieve perfect MTRS
  • C. To increase the mean time to restore services (MTRS)
  • D. To increase the mean time to repair services (MTTR)
Answer: A

NEW QUESTION # 39
Which of the following is the definition for Application Performance Management (APM)?
  • A. The highly automated communications process by which measurements are made and other data collected at remote or inaccessible points and transmitted to receiving equipment for monitoring
  • B. Ways for engineers to communicate quantitative data about systems
  • C. The use of a hardware or software component to monitor system resources and performance of a computer system
  • D. The monitoring and management of performance and availability of software applications
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Application Performance Management (APM) refers to a set of tools and practices used to monitor and manage the performance, behavior, and availability of software applications. Although APM is not defined exclusively in the Google SRE Book, it is described within the broader context of monitoring and observability.
In the SRE Workbook, under Monitoring:
"Application monitoring tools provide insights into the performance, latency, availability, and behavior of applications to help engineering teams maintain reliability." Industry-standard APM frameworks (including Google Cloud Operations Suite, formerly Stackdriver) define APM as:
"The monitoring and management of application performance and availability." Why the other options are incorrect:
* A describes telemetry, not APM.
* C describes system monitoring (infrastructure), not application performance monitoring.
* D refers to communication of metrics, not the monitoring of application performance.
Therefore, B is the correct definition.
References:
SRE Workbook, "Monitoring"
Google Cloud Operations Suite (APM documentation)

NEW QUESTION # 40
Which of the following BEST illustrates the engineering approach for work done within SRE?
  • A. An SRE is deploying a solution using an end-to-end pipeline that has been carefully analyzed from the start.
  • B. An SRE is designing a solution to eliminate toil and scale up service delivery by learning from other successful solutions.
  • C. An SRE is resolving an incident as quickly as possible using a well-designed implemented process and knowledge base.
  • D. An SRE is rapidly coding a solution to automate a daily tuning activity by following a set of best practices and principles.
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Google defines SRE as "what happens when you ask a software engineer to design an operations function." (SRE Book - Introduction). The core engineering approach in SRE focuses on:
* Eliminating toil
* Building scalable systems
* Applying software engineering to operational challenges
* Learning from previous solutions and patterns
The SRE Book emphasizes: "SREs focus on designing and engineering solutions that reduce manual operations and scale service delivery." (Chapter: Eliminating Toil). This aligns directly with Option B:
designing a solution to eliminate toil and scale service delivery, informed by prior successful engineering patterns.
Option A focuses only on automating a single tuning activity-not holistic engineering.
Option C describes deployment, not engineering approach to operations.
Option D is about incident response, not engineering strategy.
Thus, B is the best representation of SRE's engineering approach.
References:
Site Reliability Engineering, Chapters: "What Is SRE?", "Eliminating Toil." The Site Reliability Workbook, Engineering scalable solutions.

NEW QUESTION # 41
Which of the following is the LEAST useful metric when working to improve antifragility?
  • A. Recovery Point Objective
  • B. Mean Time To Detect
  • C. Service Level Objective
  • D. Deployment frequency
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Anti-fragility focuses on an organization's ability to respond, adapt, learn, and recover from incidents. The most useful metrics relate to incident detection, response, reliability, and recovery. Deployment frequency, while important in DevOps and DORA metrics, does not directly measure anti-fragility.
From the SRE Workbook, Incident Response section:
"Improving antifragility requires better detection, better recovery mechanisms, and clear reliability goals." Key metrics relevant to anti-fragility:
* MTTD (Mean Time To Detect) - quicker detection improves resilience
* MTTR/RPO - recoverability measures
* SLOs - define acceptable reliability thresholds and guide learning
Deployment frequency primarily measures delivery velocity, not resilience.
The Site Reliability Engineering Book emphasizes:
"Antifragility is improved by learning from incidents and strengthening recovery mechanisms rather than by increasing release cadence." Why other options are correct for anti-fragility:
* A. Mean Time To Detect - critical for detecting failures quickly
* B. SLOs - define boundaries for reliability and failure tolerance
* D. Recovery Point Objective - measures potential loss during failures Thus, C is the least useful metric for improving antifragility.
References:
SRE Workbook, "Incident Response"
Site Reliability Engineering Book, "Postmortem Culture"
Google DORA Research (role of deployment frequency vs. resilience metrics)

NEW QUESTION # 42
......
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