The answer is to conduct a pilot migration of a small subset of applications and then use a wave-based strategy to group applications for migration. These two approaches directly reduce migration risk at scale by allowing you to validate the migration process, test dependencies, and refine your runbooks on a manageable set before expanding. A pilot acts as a proof of concept, uncovering hidden issues like network latency or data consistency problems without exposing the entire portfolio, while wave-based sequencing ensures that interdependent applications move together, preventing cascading failures. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of the AWS Migration Acceleration Program (MAP) and the principle of incremental risk reduction; a common trap is assuming that a full rehost (lift-and-shift) is always the safest choice, but it ignores optimization opportunities and can mask compatibility issues. Remember the mnemonic “Pilot then Wave” to avoid the allure of a big-bang migration, which the exam explicitly penalizes as high-risk.
SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
This SAP-C02 practice question tests your understanding of accelerate workload migration and modernization. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 is planning a large-scale migration of hundreds of applications to AWS. Which TWO strategies should the architect consider to reduce migration risks?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use a wave-based migration approach with defined groups and dependencies
A pilot migration allows testing the process on a small set of applications. A wave-based approach groups applications for migration and helps manage dependencies. Rolling back all migrations if issues occur is not practical. Migrating all at once increases risk. Using only rehosting may not be optimal for all applications.
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 only the rehosting strategy for all applications
Why it's wrong here
Rehosting may not be suitable for all applications; different strategies may be needed.
✗
Migrate all applications in a single wave to reduce coordination effort
Why it's wrong here
Migrating all at once increases risk of widespread failures.
✓
Use a wave-based migration approach with defined groups and dependencies
Static NAT maps one inside address to one outside address.
✓
Conduct a pilot migration of a small subset of applications
Why this is correct
Pilot migration helps identify issues before full-scale migration.
Related concept
Static NAT maps one inside address to one outside address.
✗
Roll back all migrations if any application experiences issues
Why it's wrong here
Rolling back all is disruptive; better to handle issues individually.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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.
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use a wave-based migration approach with defined groups and dependencies — A pilot migration allows testing the process on a small set of applications. A wave-based approach groups applications for migration and helps manage dependencies. Rolling back all migrations if issues occur is not practical. Migrating all at once increases risk. Using only rehosting may not be optimal for all applications.
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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