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PAS-C01 Technology Practice Question

Network Topology
$ aws ec2 describe-volumesvolume-ids vol-0a1b2c3d4e5f67890Refer to the exhibit.```"Volumes": ["Attachments": ["AttachTime": "2023-01-15T10:00:00.000Z","Device": "/dev/xvdf","InstanceId": "i-0abcd1234efgh5678","State": "attached","VolumeId": "vol-0a1b2c3d4e5f67890"],"AvailabilityZone": "us-east-1a","CreateTime": "2023-01-15T09:00:00.000Z","Encrypted": false,"Size": 500,"SnapshotId": "snap-0123456789abcdef0","State": "in-use","VolumeId": "vol-0a1b2c3d4e5f67890","VolumeType": "gp3"

An SAP administrator runs the AWS CLI command shown in the exhibit to describe an EBS volume attached to an EC2 instance running SAP HANA. The instance is in the us-east-1a Availability Zone. The administrator needs to create a volume in us-east-1b and copy the data from the existing volume. What is the most efficient way to achieve this?

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

Create a snapshot of the volume and then create a new volume in us-east-1b from the snapshot

Creating a snapshot of the existing volume is the most efficient way to copy data across Availability Zones. Then, create a new volume in us-east-1b from that snapshot. Detaching the volume and attaching it to an instance in us-east-1b is not possible because the volume is tied to its AZ. Creating an AMI is unnecessary overhead. Using rsync over the network would require an instance in the same AZ and network bandwidth.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Use rsync to copy data from the instance to a new volume in us-east-1b over the network

    Why it's wrong here

    This would require network transfer and may be slower and less efficient than using snapshots.

  • Detach the volume from the instance and attach it to an instance in us-east-1b

    Why it's wrong here

    EBS volumes are tied to their Availability Zone and cannot be attached to instances in a different AZ.

  • Create a snapshot of the volume and then create a new volume in us-east-1b from the snapshot

    Why this is correct

    Snapshots are AZ-independent and can be used to create volumes in different AZs.

  • Create an AMI from the instance and launch a new instance in us-east-1b

    Why it's wrong here

    This would include the OS and other volumes, which is more overhead than needed.

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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.