ISC2 Certified in Cybersecurity (CC) Practice Question
To keep confidential payroll records from being read while stored on a company file server, which control most directly enforces this confidentiality requirement?
Configure the server with a RAID 6 disk array.
Require employees to use a biometric time clock before accessing the server.
Apply full-disk encryption to the server's hard drive.
Confidentiality is achieved by ensuring that only authorized parties can view information. Encrypting data at rest transforms the payroll files into a form unreadable without the proper decryption key, directly preventing unauthorized disclosure even if the storage media is accessed. RAID 6 focuses on fault-tolerant storage to improve availability, not on hiding data contents. A digital signature supplies proof of origin and protects integrity, but it does not conceal the data itself. A biometric time clock is an authentication mechanism for identifying users and does not protect the stored files from being viewed. Therefore, full-disk (or file-level) encryption is the control that best satisfies the confidentiality objective in this scenario.
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ISC2 Certified in Cybersecurity (CC)
Security Principles
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