- A
Use the AWS::Serverless::Transform to enable SAM
The SAM transform is required to use serverless resources.
- B
Specify the path to the source code in the template
The source code location must be specified.
- C
Define the AWS::Serverless::Function resource in the template
This defines the Lambda function.
- D
Define a VPC and subnets for the Lambda function
Why wrong: VPC is optional; not required for all serverless apps.
- E
Create an S3 bucket for the deployment artifact
Why wrong: The bucket is used to upload artifacts, but it is not defined in the template.
Question 1,003 of 1,546
SOA-C02 Deployment, Provisioning, and Automation Practice Question
This SOA-C02 practice question tests your understanding of deployment, provisioning, and automation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE steps are required to deploy a serverless application using AWS CloudFormation? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the AWS::Serverless::Transform to enable SAM
Options A, B, and C are correct. To deploy a serverless application using AWS CloudFormation with the AWS Serverless Application Model (SAM), you must: (A) add the `AWS::Serverless::Transform` to the template to enable SAM processing; (B) specify the path to the source code (e.g., via `CodeUri`) in the `AWS::Serverless::Function` resource; and (C) define the `AWS::Serverless::Function` resource. Option D is incorrect because a VPC and subnets are optional for a Lambda function. Option E is incorrect because an S3 bucket for the deployment artifact is automatically created and managed by SAM; you do not need to define it manually.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the AWS::Serverless::Transform to enable SAM
Why this is correct
The SAM transform is required to use serverless resources.
Related concept
CIDR notation defines the prefix length.
- ✓
Specify the path to the source code in the template
Why this is correct
The source code location must be specified.
Related concept
CIDR notation defines the prefix length.
- ✓
Define the AWS::Serverless::Function resource in the template
Why this is correct
This defines the Lambda function.
Related concept
CIDR notation defines the prefix length.
- ✗
Define a VPC and subnets for the Lambda function
Why it's wrong here
VPC is optional; not required for all serverless apps.
- ✗
Create an S3 bucket for the deployment artifact
Why it's wrong here
The bucket is used to upload artifacts, but it is not defined in the template.
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Visual reference
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related SOA-C02 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Deployment, Provisioning, and Automation — This question tests Deployment, Provisioning, and Automation — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Use the AWS::Serverless::Transform to enable SAM — Options A, B, and C are correct. To deploy a serverless application using AWS CloudFormation with the AWS Serverless Application Model (SAM), you must: (A) add the `AWS::Serverless::Transform` to the template to enable SAM processing; (B) specify the path to the source code (e.g., via `CodeUri`) in the `AWS::Serverless::Function` resource; and (C) define the `AWS::Serverless::Function` resource. Option D is incorrect because a VPC and subnets are optional for a Lambda function. Option E is incorrect because an S3 bucket for the deployment artifact is automatically created and managed by SAM; you do not need to define it manually.
What should I do if I get this SOA-C02 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related SOA-C02 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jun 20, 2026
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