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[General] Interactive DevOps-SRE EBook, Latest Test DevOps-SRE Experience

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【General】 Interactive DevOps-SRE EBook, Latest Test DevOps-SRE Experience

Posted at before yesterday 11:35      View：7 | Replies：0        Print      Only Author   [Copy Link] 1#
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Peoplecert PeopleCert DevOps Site Reliability Engineer (SRE) Sample Questions (Q81-Q86):NEW QUESTION # 81
In which of the following SRE adoption models is reliability a 'first class citizen'?
  • A. Embedded
  • B. Full
  • C. Consulting
  • D. Platform
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
In the Full SRE model, reliability becomes a first-class citizen because SREs own the complete operational responsibility for the service and apply SRE principles end-to-end. The Google SRE Book describes several adoption models (Consulting, Embedded, and Full), and only the Full SRE model has SREs fully accountable for reliability outcomes.
From the Site Reliability Engineering Book, Chapter "SRE Engagement Models":
"In the Full SRE model, the SRE team is responsible for end-to-end reliability. Reliability becomes a first- class objective, supported through SLOs, error budgets, and systematic reduction of toil." The Full model includes:
* Full ownership of reliability
* Enforcement of SLOs
* Error budget policies
* Engineering-driven improvement
Other models:
* Consulting # SRE gives guidance but doesn't own reliability
* Embedded # temporary embedding to train teams, not full ownership
* Platform # focuses on shared tooling, not service ownership
Thus, D. Full is correct.
References:
Site Reliability Engineering Book, "Engagement Models"
SRE Workbook, "Adopting SRE in Your Organization"

NEW QUESTION # 82
Which of me following BEST describes an advantage of a container-based structure?
  • A. The security of applications in containers is simplified because they share the security of the host system
  • B. Software runs much more efficiently in containers because of the* ability to run on virtual machines
  • C. The lightweight nature of containers requires fewer developers to actually create the software code
  • D. The portability created by containers enables software to run independently of the host operating system
Answer: D

NEW QUESTION # 83
Which of the following communication and collaboration practices BEST contribute to the effectiveness of the SRE team?
  • A. Project managers share limited data only upon request.
  • B. Team members should manage their own data discretely.
  • C. Data is flowing freely within and around the SRE team.
  • D. Data in SRE should be managed separately from others.
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
SRE is built on transparency and broad information sharing. The SRE Book states: "High-quality operations require that information flows freely between product development, SRE, and associated teams." (SRE Book
- Chapter: Communication and Collaboration). Effective incident management also depends on complete data availability: "Centralized, shared information reduces cognitive load and improves incident resolution." (SRE Workbook - Incident Management).
Option B aligns perfectly with SRE principles: data must flow freely, ensuring everyone has access to metrics, logs, architecture details, incident context, and SLOs.
Options A, C, and D promote restricted or fragmented data practices, which are directly contrary to SRE design. SRE teams avoid information silos.
Thus, B is correct.
References:
Site Reliability Engineering, Chapters: "Communication and Collaboration," "Incident Management." The Site Reliability Workbook, guidance on transparency in incident handling.

NEW QUESTION # 84
How does chaos engineering as an anti-fragility strategy improve Mean Time to Recover Service?
  • A. Caching data in the case of a database outage instead could mean the SLO is met
  • B. It helps to identify weaknesses and dependencies pinpointing areas where more resilience may be required
  • C. It optimizes monitoring tools making it more likely we will detect real incidents
  • D. It creates automation for auto-recovery
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
Chaos engineering is an SRE-aligned practice where systems are intentionally subjected to controlled failure scenarios so teams can observe how the system responds. This practice supports anti-fragility, meaning the system becomes stronger through exposure to failure.
The SRE Workbook, Chapter "Handling Overload" and Chaos Engineering sections, explains:
"Injecting failure in a controlled environment exposes the hidden dependencies, weaknesses, and systemic risks that only appear under stress." The Site Reliability Engineering Book reinforces this concept:
"By understanding how systems behave during partial failures, teams can make targeted improvements that reduce recovery time during real incidents." Improving Mean Time to Recover (MTTR) happens because:
* Weak points and bottlenecks are identified early
* Engineers gain familiarity with failure modes
* Systems are hardened ahead of actual outages
* Dependencies that cause cascading failures are revealed
Why other options are incorrect:
* B Monitoring optimization is helpful but not the core mechanism of chaos engineering.
* C Chaos engineering does not create auto-recovery automation; it reveals where it is required.
* D Caching is an architectural resilience strategy, not an outcome of chaos engineering itself.
Thus, A is the correct answer.
References:
SRE Workbook, "Chaos Engineering"
Site Reliability Engineering Book, "Managing Critical State"

NEW QUESTION # 85
What types of outages must fit into an Error Budget?
  • A. Any planned or unplanned outage
  • B. Any change approved by the CAB or decision authority
  • C. Defect fixes
  • D. Unplanned incidents
Answer: A
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
An error budget accounts for all downtime, including both planned and unplanned outages. This is a critical SRE principle: the user does not distinguish between maintenance downtime and accidental downtime - therefore, neither should the SLO nor the error budget.
The SRE Book, Chapter "Service Level Objectives," states:
"From the user's perspective, availability is simply whether the service is working or not, regardless of whether the outage was planned or unplanned." This means all downtime counts toward the error budget.
Additionally, the SRE Workbook reinforces this point:
"Error budgets must include every form of unavailability - maintenance events, configuration changes, emergency work, and unexpected incidents." This confirms that planned outages (maintenance windows) and unplanned outages (incidents) both consume error budget.
Why the other options are incorrect:
* A Only includes unplanned incidents; SRE requires counting planned outages as well.
* B Defect fixes may contribute to downtime, but "defect fixes" alone are not a downtime category.
* D CAB approval has no bearing on whether outages count toward error budgets.
Thus, C is correct: any planned or unplanned outage must be included.
References:
Site Reliability Engineering Book, "Service Level Objectives"
SRE Workbook, "Implementing SLOs"

NEW QUESTION # 86
......
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