SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating workloads to AWS using AWS Application Migration Service (AWS MGN). The source servers are running on VMware vSphere. After installing the AWS Replication Agent on the source servers, the migration waves are set up. However, during a test cutover, the test instance fails to launch with an error 'Insufficient IP address space in the target VPC'. 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 target VPC subnet does not have enough available IP addresses
The error 'Insufficient IP address space in the target VPC' indicates that the subnet used for test instances does not have enough available IP addresses to launch the instance. AWS MGN allocates IP addresses from the specified subnet during instance launch. Option A is incorrect because a CIDR mismatch would cause a different error, typically related to subnet configuration. Option B is incorrect because IAM permission issues would result in an access denied error, not an IP space error. Option D is incorrect because the service not being enabled would produce a different error (e.g., service not available). Therefore, the most likely cause is insufficient available IP addresses in the target VPC subnet.
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 replication settings specify a subnet with an incorrect CIDR block
Why it's wrong here
Replication settings affect data replication, not test instance launch IP allocation.
- ✗
The IAM role for AWS MGN does not have permissions to create network interfaces
Why it's wrong here
Missing permissions would cause an access denied error, not an IP space error.
- ✓
The target VPC subnet does not have enough available IP addresses
Why this is correct
The test instance requires an available IP in the target subnet; insufficient IPs cause launch failure.
- ✗
The AWS MGN service is not enabled in the target AWS Region
Why it's wrong here
Service not enabled would prevent replication, not cause a subnet IP error.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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