PeopleCert DevOps-Foundation PeopleCert DevOps Foundationv3.6Exam Exam Practice Test

TheDeming Cycle (Plan-Do-Check-Act)is foundational to continuous improvement in Lean, and is specifically applied in theImprovement Katapractice:

Improvement Kata: A structured routine for continuous, incremental improvement based on scientific thinking (PDCA).

Value Stream Mapping and Andon cord are Lean practices, but they don’t directly reference PDCA as the core mechanism.

Extract-style reference:

“The Improvement Kata incorporates the Deming cycle (Plan-Do-Check-Act) to drive small, rapid cycles of change, helping teams to experiment, learn, and adjust.”

—Toyota Kata, Mike Rother

PeopleCert DevOps Foundation v3.6: Cites PDCA as integral to continuous improvement and Lean/DevOps adoption.

The most effective approach to tool selection in DevOps is to establish a toolchain—a set of integrated tools that support the end-to-end lifecycle (planning, coding, building, testing, releasing, deploying, operating, and monitoring).

This encourages consistency, automation, and traceability, while still allowing flexibility for teams.

Why not standardize on one vendor?

This reduces flexibility, can cause vendor lock-in, and doesn’t support the varied needs of Dev and Ops teams.

Encouraging independent selection (C) increases fragmentation.

Focusing solely on testing (D) ignores the broader lifecycle.

Extract-style reference:

“Establishing an integrated toolchain provides end-to-end visibility and automation across the software delivery pipeline, aligning tools with process and cultural change.”

— State of DevOps Report; DevOps Handbook

PeopleCert DevOps Foundation v3.6: Recommends a toolchain approach for supporting collaborative DevOps practices.

Command(authoritarianism) is not a crucial ingredient for leading digital transformation.

The key ingredients:

Collaboration

Curiosity

Courage

DevOps leadership is about empowering teams, experimenting, and driving change,notcommand-and-control.

Extract-style reference:

“Digital transformation leaders embrace collaboration, curiosity, and courage, fostering an environment where experimentation and learning drive change.”

—Accelerate,DevOps Handbook

PeopleCert DevOps Foundation v3.6:Advocates servant and transformational leadership, not command/control.

The two best measures to showshared successacross technology teams arethroughputandstability:

Throughput(deployment frequency, lead time): Measures how fast teams deliver value.

Stability(change failure rate, MTTR): Measures how reliably systems operate.

Why these two?

Focusing onbothensures teams deliver quicklyandsafely. High throughput without stability causes outages; stability without throughput slows business.

Other options:

Deployment frequency + change lead/cycle time: Both are throughput measures, missing stability.

MTTR + change failure rate: Both are stability, missing throughput.

Employee retention and NPS: People measures, not delivery.

Extract-style reference:

“High performers in DevOps exhibit both high throughput (deployments per day) and high stability (low failure rates, fast recovery), proving it’s possible to achieve both.”

—Accelerate: The Science of Lean Software and DevOps, Ch. 2

PeopleCert DevOps Foundation v3.6:Shared success is about flowandreliability, not just one or the other.

Both B and C (Application of agile and lean methods + Management commitment to culture change)are critical success factors when launching DevOps in a traditional IT organization.

Agile/Lean methods: Accelerate delivery, reduce waste, create feedback.

Management commitment to culture change: Essential for breaking silos, changing behaviors, and making DevOps sustainable.

Forming a pilot team (A)helps, but isn’t sufficient without these foundations.

Extract-style reference:

“DevOps success starts with leadership commitment to cultural change and adopting Agile and Lean principles throughout the organization.”

—DevOps Handbook,State of DevOps Report

PeopleCert DevOps Foundation v3.6:Lists cultural commitment and Lean/Agile as prerequisites for DevOps transformation.

A fast flow ofunplanned workinto production isnota characteristic of DevOps. In fact, DevOps practices strive to minimize unplanned work (like emergency changes or outages) through automation, testing, collaboration, and rigorous change control. The other options—ensuring organizational success, working toward a common goal, and world-class stability/reliability—are all key DevOps characteristics.

Let’s clarify what these terms mean in DevOps:

Continuous Integration (CI):Developers integrate code into a shared repository frequently (ideally daily), with each integration automatically verified by tests.

Continuous Delivery (CD):Ensures software is always in a releasable state. Every change can be deployed to production, but the deployment itself may be a manual decision.

Continuous Deployment:Every change that passes automated tests is automatically deployed to production,withoutmanual intervention.

Why is D (“Continuous Deployment requires a manual push button”) NOT TRUE?

BecauseContinuous Deploymentis aboutno manual intervention—once code passes all tests, it’s automatically pushed live. Manual deployment is a feature of Continuous Delivery, not Continuous Deployment.

Extract-style reference:

“Continuous Deployment means that every change goes through the pipeline and is automatically put into production, resulting in many production deployments every day.”

—Accelerate: The Science of Lean Software and DevOps, Jez Humble & Nicole Forsgren

DevOps Foundation v3.6distinguishes between Continuous Delivery (manual trigger) and Continuous Deployment (fully automated).

Creating Single Points of Failure (SPOFs)is not a feature of Safety Culture—in fact, it’s the opposite.

Safety Culture in DevOps promotesblameless post-mortems,valuing incidents as learning opportunities, andthanking contributors for uncovering weaknesses.

SPOFs increase risk and discourage experimentation.

Extract-style reference:

“Safety Culture is built on blamelessness, psychological safety, and learning from failure, not punishment. SPOFs are an anti-pattern that increases fragility.”

—The DevOps Handbook

PeopleCert DevOps Foundation v3.6: Stresses the importance of a safe, collaborative environment for innovation.

Forcing all development teams toimmediately migrateto a standard set of tools dictated by IT Operations isnota recommended DevOps strategy.

DevOps promotescollaboration, flexibility, and evolutionof toolchains, allowing teams to choose what fits their needs while moving toward sensible defaults and integration over time.

Abrupt, top-down mandates undermine trust and autonomy, often leading to resistance and lower adoption.

Why are the other options better?

IT Ops or infra squads managing toolchain as a service(A),sensible defaults(C), andself-service(D) are all recognized best practices to support DevOps evolution and developer enablement.

Extract-style reference:

“Mandating a single toolset without considering team needs reduces engagement. Toolchains should be managed as self-service platforms with sensible defaults, supporting but not constraining teams.”

—State of DevOps Report;DevOps Handbook

PeopleCert DevOps Foundation v3.6:Encourages enabling choice, not enforcing uniformity without context.

Manufacturingisnota type of IT work in DevOps.

DevOps classifies IT work as:

Business projects:New value-creating work.

Planned work:Routine, repeatable tasks (maintenance, upgrades).

Unplanned work:Incidents, emergencies, support.

Extract-style reference:

“IT work includes business projects, planned work, and unplanned work. Manufacturing is an analogy for flow, but not a category of IT work itself.”

—The Phoenix Project

PeopleCert DevOps Foundation v3.6:Recognizes these three categories to manage and improve IT workloads.

Shift Left Testingmeans moving testing earlier in the development process, so defects are found sooner and fixes are cheaper.

Unit testing as part of CIis the classic “shift left” strategy: automated unit tests run with every code change, catching errors before code moves further down the pipeline.

Testing in production(A) is “shift right.”

Manual testing(B) is typically late-stage and not automated.

Biannual vulnerability assessments(D) are after-the-fact and far from “shift left.”

Extract-style reference:

“Shift left means performing testing activities earlier, for example by including unit tests in the CI process, reducing costly late-stage defects.”

—DevOps Handbook

PeopleCert Foundation: “Shift left” is a key DevOps testing principle—find issues fast, fix fast, deploy safely.

High-performing organizationsembed learning into their culture, which leads to continuous improvement, innovation, and adaptability.

Employees and leadership committed to learning (option C) is a proven characteristic of high performance.

Other options—individualism, mandated training, and disincentivized development—are actually barriers to DevOps success.

Extract-style reference:

“High-performing organizations deliberately invest in learning and development and have leaders who model and reward learning behaviors.”

—Accelerate: The Science of Lean Software and DevOps, Nicole Forsgren et al.

PeopleCert DevOps Foundation v3.6: The syllabus highlights that a “culture of learning” and psychological safety are core characteristics of successful DevOps organizations.