PAS-C01 Migration Practice Question
A company is migrating an SAP NetWeaver system to AWS using the AWS Application Migration Service (AWS MGN). The source server runs SUSE Linux Enterprise Server (SLES) 12 SP5. After the cutover, the SAP application fails to start with an error indicating that the hostname resolution fails. The target EC2 instance has the same hostname as the source. What is the most likely cause?
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
✓
The /etc/hosts file on the target instance still references the source server's old private IP address
AWS MGN replicates the entire disk, including the /etc/hosts file. After cutover, the target EC2 instance gets a new private IP address, but the /etc/hosts file still contains the source server's old private IP. This causes hostname resolution to fail because the SAP application tries to resolve the hostname to the old IP. Option A is incorrect because /etc/sysconfig/network is not directly related to hostname resolution failure. Option C is incorrect because SLES 12 SP5 is supported by AWS MGN. Option D is incorrect because Route 53 private hosted zone is not required for hostname resolution if /etc/hosts is correctly configured.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The network configuration file /etc/sysconfig/network was not replicated
Why it's wrong here
AWS MGN replicates the entire disk including network configuration.
- ✓
The /etc/hosts file on the target instance still references the source server's old private IP address
Why this is correct
After migration, the target instance gets a new IP; /etc/hosts must be updated to reflect the new IP.
- ✗
The source server's operating system is not supported by AWS MGN
Why it's wrong here
AWS MGN supports SLES 12 SP5.
- ✗
The target instance is not registered in Amazon Route 53 private hosted zone
Why it's wrong here
Hostname resolution can be done via /etc/hosts; Route 53 is not required.
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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.