Question: You want to encrypt a Compute Engine image. What do you need to do ?

1. Nothing. Images are encrypted by default with a Google - managed key.
2. Associate your image with the default Google-managed key to encrypt it.
3. Nothing. Images are encrypted by default with a customer-managed key.
4. Associate your image with a customer-managed key to encrypt it.

Answer: The correct answer of the above question is Option D:Associate your image with a customer-managed key to encrypt it.