Your application is controlled by a managed instance group. You want to share a large read-only data set between all the instances in the managed instance group. You want to ensure that each instance

Question

Options

• AMove the data to a Cloud Storage bucket, and mount the bucket on the filesystem using Cloud
• BMove the data to a Cloud Storage bucket, and copy the data to the boot disk of the instance via a
• CMove the data to a Compute Engine persistent disk, and attach the disk in read-only mode to
• DMove the data to a Compute Engine persistent disk, take a snapshot, create multiple disks from

• A
  4% (2)
• B
  17% (9)
• C
  71% (37)
• D
  8% (4)

Explanation

A Compute Engine persistent disk can be attached in read-only mode to multiple VM instances simultaneously. This means all instances in the managed instance group share the same disk with no data copying, enabling fast, low-latency filesystem access. No startup copy is needed because the data is already on the attached disk. This is cheaper than creating a separate disk per instance from a snapshot (D). Cloud Storage with FUSE (A) introduces higher latency than a local filesystem. Copying to the boot disk (B) increases startup time and wastes disk space per instance.

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