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Course Library · Lesson 6 of 6
Digital · Guided lesson

Choose an architecture with a supported decision

About 19 minutes · 4 reading + 15 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

A fictional cloud-service architecture packet with workload and data flow, responsibility boundary, least-privilege role matrix, unit-based cost and egress budget, recovery table and supported service decision.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Create a unit-labeled workload, minimal-data flow, and explicit planning-assumption register.
  • Produce a service-specific provider/customer matrix and a list of real-contract questions.
  • Create task-based allowed/denied role cases and clearly mark the access matrix as design evidence.
  • Deliver independently checked baseline and stress costs, reserve totals, and a budget-review condition.
  • Create a recovery timeline and validation checklist with distinct RPO/RTO targets and unexecuted limits.
  • Deliver a supported architecture decision with calculation evidence and unresolved real-service questions.

Review and revise

Use these criteria to check your work and choose what to improve.

  • The implementation or declared simulation follows the supplied contract and retains inspectable original inputs.
  • Normal, boundary and rejected cases are recorded with expected versus observed results.
  • The changed case has a correct explanation and does not rely on hidden state.
  • The project includes source, outputs, instructions and honest tool, privacy and verification limits.
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Before you begin

The idea in everyday life

Fictional reference-card service: 1000 requests/month, 20 budgeted compute hours, 2 GB stored, 4 GB outbound. Invented rates: $0.05/hour, $0.20/GB-month storage, $0.10/GB outbound, $2/month fixed; 25% reserve and $6/month budget. These are exercise assumptions, not provider prices or measured workload forecasts.

The idea

The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

Follow along

Choose an architecture with a supported decision — original worked practice

The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

Fictional reference-card service: 1000 requests/month, 20 budgeted compute hours, 2 GB stored, 4 GB outbound. Invented rates: $0.05/hour, $0.20/GB-month storage, $0.10/GB outbound, $2/month fixed; 25% reserve and $6/month budget. These are exercise assumptions, not provider prices or measured workload forecasts.

  1. 1. Step 1

    Compare the managed option baseline $3.80 with a fictional VM alternative: 40 hours×$0.04+$0.40 storage+$0.40 egress+$1 fixed=$3.40.

    You should see: The VM modeled subtotal is $0.40 lower.

    The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

  2. 2. Step 2

    Compare additional guest-OS/runtime maintenance and the organization’s actual available expertise, without inventing a staff capability.

    You should see: Operational duties may outweigh the small modeled saving.

    The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

  3. 3. Step 3

    Choose proceed-to-provider-research, revise, or stop; cite cost stress, role boundary, and recovery evidence.

    You should see: The decision uses several supported criteria.

    The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

  4. 4. Step 4

    Deliver maps, unit budget, role matrix, recovery tabletop, calculation output, and unanswered real-contract questions.

    You should see: A complete fictional cloud-service planning packet.

    The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design.

Now change one thing

The organization cannot maintain a VM guest OS. Is a $0.40 monthly modeled saving alone enough to select it?

Your work

What to finish

Deliver a supported architecture decision with calculation evidence and unresolved real-service questions.

Common mistake

Watch for this

Selecting solely on a fictional subtotal or claiming an architecture packet secures funding.

How can I tell I understand it?

Demonstrate the rule: The lowest invented subtotal is not automatically the best service choice. Compare duties, access, recovery, uncertainty, and the organization’s ability to operate the design. Use the supplied variant to distinguish a changed result from a broken implementation.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1Why can the modeled cheaper VM still be a poor choice?
2Which outcome is acceptable for this completed planning project?
3What remains necessary before buying a real service?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
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Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

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Tools, templates, and lesson sources

Tools and templates

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Sources and further reading

Explore the references behind this lesson.

aws.amazon.com — shared responsibility model
Source & access notes · checked 2026-10-01

Relevant documented module/API behavior inspected during expansion authoring; actual execution evidence is recorded separately. No grant eligibility is established.

Access: Official page retrieved with the web reader on 2026-10-01. Documentation reading does not certify execution in every native tool or browser.

Reuse: Original local practice files, fictional data, worked examples and questions. Concepts paraphrased and linked; source exercises are not copied.

docs.cloud.google.com — cost optimization
Source & access notes · checked 2026-10-01

Relevant documented module/API behavior inspected during expansion authoring; actual execution evidence is recorded separately. No grant eligibility is established.

Access: Official page retrieved with the web reader on 2026-10-01. Documentation reading does not certify execution in every native tool or browser.

Reuse: Original local practice files, fictional data, worked examples and questions. Concepts paraphrased and linked; source exercises are not copied.

learn.microsoft.com — disaster recovery
Source & access notes · checked 2026-10-01

Relevant documented module/API behavior inspected during expansion authoring; actual execution evidence is recorded separately. No grant eligibility is established.

Access: Official page retrieved with the web reader on 2026-10-01. Documentation reading does not certify execution in every native tool or browser.

Reuse: Original local practice files, fictional data, worked examples and questions. Concepts paraphrased and linked; source exercises are not copied.

learn.microsoft.com — identity access
Source & access notes · checked 2026-10-01

Relevant documented module/API behavior inspected during expansion authoring; actual execution evidence is recorded separately. No grant eligibility is established.

Access: Official page retrieved with the web reader on 2026-10-01. Documentation reading does not certify execution in every native tool or browser.

Reuse: Original local practice files, fictional data, worked examples and questions. Concepts paraphrased and linked; source exercises are not copied.

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