Title: Quiz 10 — Cloud Foundations for AI: Providers, IAM & Cost Guardrails
Course: AIINFRA 101: Applied Infrastructure & Containerization > Section: Week 10 — Cloud Foundations for AI: Providers, IAM & Cost Guardrails

Q: Under AWS's July 2026 restructured Free Tier, what do brand-new AWS accounts receive?
- 750 hours/month of EC2 for 12 months
- \$200 in credit valid for 6 months
- Unlimited EC2 usage for 90 days
- \$300 in credit valid for 12 months
A: \$200 in credit valid for 6 months

Q: Which of the following is the correct definition of an Availability Zone (AZ)?
- A single global network backbone connecting all cloud regions
- A physically separate data center (or cluster of data centers) within a region
- A synonym for "region" used interchangeably by AWS
- A billing zone used only for tax purposes
A: A physically separate data center (or cluster of data centers) within a region

Q: Multi-AZ deployment and multi-region deployment provide the same level of fault tolerance, so beginners should choose whichever is cheaper.
- True
- False
A: False

Q: A team launches five t2.micro EC2 instances and runs each one for 200 hours in the same month, under an account with the standard 750 free EC2 hours/month. Will they be billed for any EC2 usage that month, and why or why not?
Feedback: Sample/expected answer: Yes — 5 instances × 200 hours = 1,000 total hours, but only 750 hours/month are free and shared across ALL instances combined, so 250 hours will be billed at standard rates.

Q: AWS Budgets alerts will automatically stop your resources from running once you hit 100% of your budget.
- True
- False
A: False

Q: Which of the following is the recommended way for a human user to sign in for daily administrative work?
- Root account access keys
- An IAM administrative user or federated identity
- A shared team access key stored in a shared document
- Root account password only, no MFA
A: An IAM administrative user or federated identity

Q: What is the term for the automated response — such as an SCP, a Lambda function, or a Systems Manager document — that actually enforces a budget threshold instead of just notifying someone?
Feedback: Sample/expected answer: Budget Actions

Q: You're writing an IAM policy for a workload that only needs to read from one specific S3 bucket. Following least privilege, what should the policy's Resource field specify?
- `"Resource": "*"` for all S3 buckets
- The specific ARN of that one bucket only
- No Resource field is needed
- The ARN of every bucket in the account
A: The specific ARN of that one bucket only