SAP-C02 Practice Question: Design Solutions for Organizational Complexity
This SAP-C02 practice question tests your understanding of design solutions for organizational complexity. 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.
A company uses AWS Organizations with multiple accounts. The central IT team wants to restrict the use of specific EC2 instance types across all accounts to control costs. Which approach should the team use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a service control policy (SCP) that denies the ec2:RunInstances action for prohibited instance types and apply it to the organization.
Option B is correct because SCPs can deny the launch of specific EC2 instance types. Option A is wrong because IAM policies are per-account and not inherited. Option C is wrong because EC2 billing alerts do not prevent launches. Option D is wrong because CloudWatch Events can only trigger notifications, not deny actions.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 AWS Budgets to send alerts when costs exceed a threshold.
Why it's wrong here
Alerts do not prevent launches.
✗
Configure Amazon CloudWatch Events to detect launches and terminate instances.
Why it's wrong here
This is reactive and may incur costs before termination.
✗
Attach an IAM policy to each account's root user to deny the ec2:RunInstances action for certain instance types.
Why it's wrong here
IAM policies are per-account and not automatically inherited.
✓
Create a service control policy (SCP) that denies the ec2:RunInstances action for prohibited instance types and apply it to the organization.
Why this is correct
SCPs apply to all accounts in the organization.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SAP-C02 NAT questions on configuration and troubleshooting.
Design Solutions for Organizational Complexity — This question tests Design Solutions for Organizational Complexity — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a service control policy (SCP) that denies the ec2:RunInstances action for prohibited instance types and apply it to the organization. — Option B is correct because SCPs can deny the launch of specific EC2 instance types. Option A is wrong because IAM policies are per-account and not inherited. Option C is wrong because EC2 billing alerts do not prevent launches. Option D is wrong because CloudWatch Events can only trigger notifications, not deny actions.
What should I do if I get this SAP-C02 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SAP-C02 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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