What are two secure options for storing the contents of the Operator CD?

Storing the contents of the Operator CD in a physical safe and mounting it during maintenance is a secure option because it limits access to the contents only when necessary. This approach minimizes the risk of unauthorized access or data breaches, as the sensitive data is kept in a secure physical location when not in use. By controlling when and how the data can be accessed, this method maintains the integrity and confidentiality of the contents.

In the context of secure data management, it is crucial to ensure that sensitive information is only available under stringent conditions. Using a physical safe allows for a tangible security measure, which is often more reliable than digital security measures that can be vulnerable to cyber-attacks.

The other options suggest less secure practices. For instance, storing data in a public cloud service can introduce risks of exposure and breaches, while copying contents to an unprotected local drive leaves data susceptible to unauthorized access and loss. Storing the server key in a hardware security module is a good practice for key management, but it does not directly address the specific contents of the Operator CD in the same manner as placing it in a physical safe.