PAS-C01 Technology Practice Question
Exhibit
Refer to the exhibit.
```
Resources:
MySAPInstance:
Type: AWS::EC2::Instance
Properties:
InstanceType: r5.2xlarge
ImageId: ami-0abcdef1234567890
BlockDeviceMappings:
- DeviceName: /dev/xvda
Ebs:
VolumeSize: 50
VolumeType: gp2
```Refer to the exhibit. A CloudFormation template is used to launch an EC2 instance for SAP. The instance launches but the root volume is only 50 GB. The SAP installation requires at least 100 GB for the root volume. How should the template be modified?
⚠ Common exam trap
This question tests the misconception that changing the instance type or AMI alone can adjust root volume size, when in fact the BlockDeviceMapping is the explicit mechanism to control root volume size at launch.
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
✓
Change VolumeSize from 50 to 100 in the BlockDeviceMapping.
The CloudFormation template explicitly defines the root volume size in the BlockDeviceMapping property. By changing VolumeSize from 50 to 100, the template will provision a new EC2 instance with a 100 GB root volume, meeting the SAP installation requirement. The BlockDeviceMapping overrides the default root volume size from the AMI, so this is the precise way to control volume size at launch.
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 VolumeSize from 50 to 100 in the BlockDeviceMapping.
Why this is correct
Increasing the VolumeSize value will allocate a larger root volume.
- ✗
Change the InstanceType to a larger instance.
Why it's wrong here
Instance type does not affect root volume size.
- ✗
Modify the running instance's root volume size using the AWS Management Console.
Why it's wrong here
The template is used for new launches; the question asks to modify the template.
- ✗
Change the ImageId to an AMI with a larger root volume.
Why it's wrong here
The AMI may have a smaller root volume; the template overrides it.
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