PAS-C01 Migration Practice Question
A company is migrating a large SAP ERP system to AWS. The system has multiple interfaces with external systems using RFC connections. During the migration, the team needs to minimize changes to the external systems' configurations. What approach should be taken for the RFC connections?
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
✓
Assign an Elastic IP address to the SAP application server
Assigning an Elastic IP address to the SAP application server ensures that the public IP address remains the same after migration, so external systems do not need to update their RFC connection configurations. Option A (changing external systems to use DNS names) would require changes to external systems, which contradicts the goal of minimizing changes. Option B (using the private IP) would not be reachable from external systems over the internet. Option C (NAT Gateway) is used for outbound traffic, not for inbound RFC connections. Option D (Elastic IP) correctly provides a static public IP address for inbound RFC traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the external systems to use DNS names instead of IP addresses
Why it's wrong here
Changing external systems to use DNS names would require changes to external systems, which contradicts the goal of minimizing changes.
- ✗
Use the private IP address of the EC2 instance
Why it's wrong here
Using the private IP would not be reachable from external systems over the internet.
- ✗
Use a NAT Gateway to route the RFC traffic
Why it's wrong here
NAT Gateway is used for outbound traffic, not for inbound RFC connections.
- ✓
Assign an Elastic IP address to the SAP application server
Why this is correct
Assigning an Elastic IP address ensures that the public IP address remains the same after migration, so external systems do not need to update their RFC connection configurations.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services 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 PAS-C01 exam.