- A
Migrate the application to serverless compute to eliminate the need to manage VMs.
Why wrong: Serverless requires refactoring the application, which is time-consuming and risky. It does not address the immediate cost and performance issues without significant effort.
- B
Perform a rightsizing analysis of the current VM usage and adjust instance types accordingly.
Rightsizing addresses both cost and performance by matching instance resources to actual workload demands. It is a standard first step in cloud optimization.
- C
Consolidate the workload into fewer, larger instances to reduce overhead and licensing costs.
Why wrong: Consolidation might reduce costs if instances are underutilized, but it does not address performance issues and could create a single point of failure or actually worsen performance if the application is not optimized for vertical scaling.
- D
Replace On-Demand instances with Spot Instances to reduce costs during spikes.
Why wrong: Spot Instances can be terminated with minimal notice, which is not suitable for a stateful monolithic application that cannot tolerate interruptions.
CCSP Cloud Concepts, Architecture and Design Practice Question
This CCSP practice question tests your understanding of cloud concepts, architecture and design. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 healthcare organization recently migrated a patient records management application from on-premises infrastructure to a cloud environment using Infrastructure as a Service (IaaS). The application was originally designed as a monolithic workload running on bare-metal servers. After migration, the application is deployed on a fleet of virtual machines (VMs) of the same instance type. The organization is using a combination of Reserved Instances for baseline capacity and On-Demand instances to handle spikes. However, two months after the migration, the cloud bill is 40% higher than the estimated on-premises total cost of ownership. Additionally, performance reports indicate that the application experiences inconsistent latency and occasional timeouts during peak hours. The operations team has confirmed that the application code has not changed, and the cloud provider's infrastructure is healthy. There is no issue with network bandwidth or storage I/O. The team is considering several options to address both cost and performance issues. What should the team do first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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
Perform a rightsizing analysis of the current VM usage and adjust instance types accordingly.
Option B is correct. The symptoms (high cost and inconsistent performance) strongly suggest that the instances are not appropriately sized for the workload. Rightsizing based on actual metrics (CPU, memory, I/O) is the most direct and effective first step to reduce waste and improve performance. Option A is too drastic; moving to serverless would require significant architectural changes and is not a quick fix. Option C (Spot Instances) is unsuitable for baseline capacity because they can be terminated with little notice, which would disrupt a monolithic application. Option D (consolidation into fewer, larger instances) might reduce licensing costs but assumes that the current instances are underutilized; it could exacerbate performance issues if the application is not designed to scale horizontally.
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.
- ✗
Migrate the application to serverless compute to eliminate the need to manage VMs.
Why it's wrong here
Serverless requires refactoring the application, which is time-consuming and risky. It does not address the immediate cost and performance issues without significant effort.
- ✓
Perform a rightsizing analysis of the current VM usage and adjust instance types accordingly.
Why this is correct
Rightsizing addresses both cost and performance by matching instance resources to actual workload demands. It is a standard first step in cloud optimization.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Consolidate the workload into fewer, larger instances to reduce overhead and licensing costs.
Why it's wrong here
Consolidation might reduce costs if instances are underutilized, but it does not address performance issues and could create a single point of failure or actually worsen performance if the application is not optimized for vertical scaling.
- ✗
Replace On-Demand instances with Spot Instances to reduce costs during spikes.
Why it's wrong here
Spot Instances can be terminated with minimal notice, which is not suitable for a stateful monolithic application that cannot tolerate interruptions.
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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
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 CCSP NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this CCSP question test?
Cloud Concepts, Architecture and Design — This question tests Cloud Concepts, Architecture and Design — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Perform a rightsizing analysis of the current VM usage and adjust instance types accordingly. — Option B is correct. The symptoms (high cost and inconsistent performance) strongly suggest that the instances are not appropriately sized for the workload. Rightsizing based on actual metrics (CPU, memory, I/O) is the most direct and effective first step to reduce waste and improve performance. Option A is too drastic; moving to serverless would require significant architectural changes and is not a quick fix. Option C (Spot Instances) is unsuitable for baseline capacity because they can be terminated with little notice, which would disrupt a monolithic application. Option D (consolidation into fewer, larger instances) might reduce licensing costs but assumes that the current instances are underutilized; it could exacerbate performance issues if the application is not designed to scale horizontally.
What should I do if I get this CCSP 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 CCSP NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
This CCSP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CCSP exam.
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