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  3. DevOps-SRE Exam
  4. Peoplecert.DevOps-SRE.v2026-04-24.q40 Dumps
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Question 16

Service Level Indicator data helps to understand how much Error Budget is left.
TRUE or FALSE?

Correct Answer: A
Comprehensive and Detailed Explanation From Exact Extract:
Service Level Indicators (SLIs) provide the quantitative measurements needed to determine how much of the Service Level Objective (SLO) has been consumed. Since the error budget is defined as the allowable amount of unreliability, SLI data is the source of truth for calculating how much of that budget remains.
From the Site Reliability Engineering Book, Chapter "Service Level Objectives":
"SLIs provide the measurements used to determine compliance with SLOs. Error budgets are computed directly from the SLI measurements over the defined time window." The SRE Workbook further explains:
"Error budgets quantify the inverse of SLO performance. SLIs provide the raw data that allow teams to calculate how much of the budget has been consumed and how much remains." Thus, SLI data is the Only mechanism that determines remaining error budget.
Therefore, the statement is True.
References:
Site Reliability Engineering Book, "Service Level Objectives"
SRE Workbook, "Implementing SLIs and SLOs"
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Question 17

What does the Westrum model study?

Correct Answer: B
Comprehensive and Detailed Explanation From Exact Extract:
The Westrum Organizational Culture Model categorizes organizations based on how effectively they allow information to flow, particularly in high-risk and high-performance environments. This model is widely referenced in SRE and DevOps practices and is cited by Google in their SRE culture guidance.
The Westrum model identifies three culture types:
* Pathological (power-oriented)
* Bureaucratic (rule-oriented)
* Generative (performance-oriented)
From the SRE Workbook and Google's DevOps Research (DORA):
"The Westrum model is a taxonomy of organizational cultures based on how information flows. Generative cultures-with high cooperation and open information flow-correlate with higher reliability and better outcomes." Why the other options are incorrect:
* A Deployment frequency is a DORA metric, not Westrum's focus.
* C Resource flow is unrelated to Westrum.
* D While communication affects design, Westrum specifically studies information flow as a cultural health indicator, not structural design.
Thus, the correct answer is B.
References:
SRE Workbook, "Cultural Change"
Google DORA Research, "Accelerate State of DevOps Report"
Ron Westrum, "A Typology of Organizational Cultures"
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Question 18

Microservices are independent services that are developed, deployed, and maintained separately.
Which of the following BEST justifies the use of this application architecture?

Correct Answer: A
Comprehensive and Detailed Explanation From Exact Extract:
SRE supports microservices architecture because it improves reliability by reducing blast radius, allowing independent deployments, and enabling scalable autonomous teams. The SRE Book notes: "Microservices enable teams to independently iterate and improve reliability without the constraints of large monolithic systems." (SRE Book - Distributed Systems). One of the strongest reasons to adopt microservices is modernizing and refactoring large legacy monoliths, allowing them to be broken into independently deployable, maintainable components.
Option A is therefore the best justification.
Options B, C, and D may involve architectural choices, but they do not explain why microservices are the preferred architecture for reliability and scalability.
Thus, A is correct.
References:
Site Reliability Engineering, Chapters on Distributed Systems and Microservice Reliability Patterns.
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Question 19

Which of the following BEST describes the capabilities and scope of DevOps continuous monitoring?

Correct Answer: B
Comprehensive and Detailed Explanation From Exact Extract:
SRE and DevOps share a common view of continuous monitoring-a holistic approach that enables rapid detection, diagnosis, and response across all parts of the system. The SRE Book states: "Monitoring must enable fast detection of anomalies, quick diagnosis, and effective incident response." Continuous monitoring includes application metrics, infrastructure signals, logs, traces, service health, and user-experience telemetry.
Option B captures this accurately: a combination of tools and processes enabling rapid incident detection and response, especially for cloud services.
Option A is partially correct but too narrow (only end-user transactions).
Option C is generic and does not emphasize continuous or rapid detection.
Option D describes infrastructure monitoring only-not full DevOps/SRE continuous monitoring.
Thus, B is the correct answer.
References:
Site Reliability Engineering, Chapter: "Monitoring Distributed Systems." The Site Reliability Workbook, Observability and Monitoring.
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Question 20

Engineering operational work to scale with a growing application is BEST achieved by addressing which of the following issues?

Correct Answer: D
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