"when connecting to a host via ssh for the first time, the user is prompted to accept the encryption fingerprint for the target computer which is stored in in the ~/.ssh/ directory."

I’d say platform as a service (paas) or application platform as a service (apaas) or platform base service is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app.

The correct answer to go in the blank would be a) complement.

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