VMCA2022 Question #100: Real Exam Question with Answer & Explanation

Question

Options

• APerform the backup using a Veeam agent.
• BPerform a normal virtual machine backup on the workload without application aware processing.
• CRun pre-freeze and post-thaw scripts before backing up the workload.
• DPerform the backup using application aware processing.

Explanation

Snapshot stun is a phenomenon that occurs when a VMware snapshot is removed and the virtual machine (VM) experiences a temporary freeze or performance degradation. This can affect the availability and consistency of mission critical applications running on the VM. To avoid snapshot stun, Veeam Backup & Replication offers several options for backing up Linux VMs, such as backup from storage snapshots, direct SAN access, or hot-add. However, based on the business requirements, the best option is to run pre-freeze and post-thaw scripts before backing up the Pre-freeze and post-thaw scripts are custom scripts that you can configure to run on the Linux VM before and after the snapshot is taken. The pre-freeze script can be used to quiesce the application and flush its data to disk, ensuring a consistent backup.The post-thaw script can be used to resume the application and perform any necessary cleanup actions. By using pre-freeze and post-thaw scripts, you can achieve application consistency and minimize the impact of snapshot stun on the Linux VM.You can use the Veeam Backup & Replication user interface or the Veeam PowerShell snap-in to configure the scripts for the backup job.

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