Week 20: Exercises & Checklist

Graded exercises

1. Easy: Run notebooks/01-bedrock-converse-and-knowledge-bases.ipynb to completion. It runs the Week 6 prompt suite across Bedrock models with the Converse API and queries a Knowledge Base for RAG, ending by printing recall and groundedness. Record both numbers in the Week 20 tracker sheet.

2. Standard: Add a third Bedrock model to the prompt-suite comparison (for example Nova Lite vs Claude vs Llama). Add a markdown cell with a three-row table of accuracy, latency, and estimated token cost, and state the delta each model gains or loses against the others.

3. Stretch: Apply the Guardrail to the Knowledge Base response path (not only the agent). Run an off-topic query set through retrieve_and_generate with the guardrail attached, and show how the blocked/allowed counts move compared to the unguarded run.

4. Portfolio: Publish the three-cloud comparison matrix (Foundry vs Vertex vs Bedrock) to curriculum/projects/. Every cell must trace to a measured number from Weeks 18 to 20; add a cost row and close with a one-paragraph "which cloud for which job" recommendation. This is the Phase 6 capstone, the matrix is the deliverable.

Hints

1. Easy: Record RECALL and GROUNDEDNESS; the dry-run local retriever prints the target values (1.000 / 1.000), a live Knowledge Base must meet or beat them.
2. Standard: Add a third model ID to MODELS, call accuracy_for on it, and state the delta in accuracy, latency, and estimated token cost against the other two.
3. Stretch: Attach the guardrail to retrieve_and_generate (pass the guardrail config in the KB call), then run an off-topic query set and compare blocked/allowed counts.
4. Portfolio: Build the matrix row-by-row from your Weeks 18 to 20 guides; a cell with no printed number is a gap, leave it blank and honest rather than guessing.

Checklist (mirrors manifest.json + Excel tracker)

• [ ] Mon: Set up the AWS account and IAM least-privilege role; enable Bedrock models.
• [ ] Tue: Converse API lab: run the Week 6 prompt suite across Bedrock models.
• [ ] Wed: Build a Knowledge Base (RAG) for shipping policies; query with citations.
• [ ] Thu: Create a Bedrock Agent + Guardrails; test blocked prompts.
• [ ] Fri: Use case: publish the 3-cloud comparison matrix (Foundry vs Vertex vs Bedrock) with cost.
• [ ] Sat: Take the Week 20 quiz (quiz.md), pass with 8/10; record the score in Notes.
• [ ] Milestone: Update the Excel tracker; commit the AWS guide and matrix.