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Answer: Upload your public ssh key to the project Metadata.
To ensure an SSH key works on every instance in the project efficiently, uploading the public key to **project metadata (A)** is the correct approach. Project metadata applies to all instances in the project, ensuring new instances automatically include the key. Existing instances will inherit the key after a restart. While option D (`gcloud compute ssh`) adds the key to individual instance metadata when used, it requires manual or scripted execution for each instance, making it less efficient. Options B (per-instance metadata) and C (custom image) are not scalable or efficient for all instances.
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How can you efficiently configure your personal SSH key to work on all instances within your Google Cloud project?
A
Upload your public ssh key to the project Metadata.
B
Upload your public ssh key to each instance Metadata.
C
Create a custom Google Compute Engine image with your public ssh key embedded.
D
Use gcloud compute ssh to automatically copy your public ssh key to the instance.
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