Practice Test Geeks(DOL) DevOps Leader Practice Test
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DOL Cloud and Infrastructure Strategy Flashcards

6 cards from real DOL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 DOL Cloud and Infrastructure Strategy flashcards as text

  1. What is the key difference between vertical scaling and horizontal scaling in a cloud environment?

    Answer: Vertical scaling increases the size of a single server; horizontal scaling adds more server instances

    Vertical scaling (scale up) increases compute resources on one machine while horizontal scaling (scale out) distributes load across multiple instances.

  2. A DevOps team needs to manage environment-specific configuration without changing container images. Which approach is best practice?

    Answer: Using environment variables or secrets management tools injected at runtime

    Injecting configuration at runtime via environment variables or secrets managers keeps images environment-agnostic and aligns with the 12-factor app methodology.

  3. What is a key advantage of using Kubernetes for container orchestration in a DevOps environment?

    Answer: It automates deployment, scaling, and self-healing of containerized applications

    Kubernetes automates scheduling, rolling updates, self-healing, and scaling, reducing the operational burden of running containerized workloads.

  4. Which cloud cost optimization strategy aligns best with DevOps principles of automation?

    Answer: Implementing auto-scaling policies and resource tagging to automate rightsizing and chargeback

    Automated auto-scaling and resource tagging enable continuous cost optimization and team accountability without manual intervention.

  5. What is GitOps and how does it relate to infrastructure management?

    Answer: Using Git as the single source of truth for declarative infrastructure and application configuration, with automated reconciliation

    GitOps treats Git as the authoritative source for desired system state, with operators automatically applying changes when the repository is updated.

  6. When adopting a serverless architecture, which traditional DevOps concern is significantly reduced?

    Answer: Server provisioning and OS-level patching

    Serverless platforms abstract away server management entirely, so teams no longer need to provision, patch, or manage underlying operating systems.

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Sources & references

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  1. devopsinstitute.com — Score validity · verified Oct 2026
  2. peoplecert.org — Test delivery, eligibility, fees, exam format, passing score, renewal, time limit · verified Oct 2026