The correct answer is to create a separate sandbox environment that is isolated from production and uses mock endpoints for RFC calls. This approach is essential because isolating SAP RFC connections during migration prevents any accidental data changes or impacts to the live production system, which could occur if the sandbox environment were allowed to reach out to real external systems. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of safe migration testing practices, specifically how to handle RFC calls in SAP sandbox migration testing without risking data integrity. A common trap is assuming that pointing the sandbox to a read-only production endpoint is safe, but even read access can trigger unintended side effects in complex ABAP code. Remember the memory tip: “Mock the call, don’t risk the fall”—always use simulated endpoints to keep your sandbox fully isolated.
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. 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 migrating its SAP ERP system to AWS. The system has a custom ABAP code that uses RFC calls to an external system. The company wants to test the migrated system in a sandbox environment before the final cutover. What is the best practice for handling the RFC connections during testing?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a separate sandbox environment that is isolated from production and uses mock endpoints for RFC calls.
Option A is correct because using a sandbox environment disconnected from the production system prevents accidental data changes or impacts. Options B, C, D are incorrect because they either involve production connections or are not best practices.
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.
✓
Create a separate sandbox environment that is isolated from production and uses mock endpoints for RFC calls.
Why this is correct
Isolation prevents unintended effects on production.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use the same RFC destinations as production but disable the external system.
Why it's wrong here
Disabling external system may cause errors; better to mock.
✗
Set up a VPN between the sandbox and the external system to test real connectivity.
Why it's wrong here
Exposes external system to test traffic; not isolated.
✗
Configure the sandbox to use the production RFC endpoints but with read-only access.
Why it's wrong here
Read-only may not be supported; risk of data modification.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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 PAS-C01 NAT questions on configuration and troubleshooting.
Migration — This question tests Migration — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Create a separate sandbox environment that is isolated from production and uses mock endpoints for RFC calls. — Option A is correct because using a sandbox environment disconnected from the production system prevents accidental data changes or impacts. Options B, C, D are incorrect because they either involve production connections or are not best practices.
What should I do if I get this PAS-C01 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 PAS-C01 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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