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Which of the following protocols should be used when transferring data via the internet?
Correct Answer: C
Comprehensive and Detailed Step-by-Step Explanation: SFTP (Secure File Transfer Protocol)is the most secure option for transferring data over the internet, as it encrypts both commands and data, ensuring confidentiality and integrity. * SFTP (Correct Answer - C) * Uses SSH (Secure Shell) for encryption. * Provides authentication and encryption for secure data transfers. * Example:A company uses SFTP to securely transmit payroll files to a third-party processor. * UDP (Incorrect - A) * Faster but lacks encryption and data integrity checks. * HTTP (Incorrect - B) * Transfers data in plaintext and is vulnerable to interception. * RDP (Incorrect - D) * Used for remote desktop access, not secure file transfers. References: * ISACA CISA Review Manual * NIST 800-52 (Guidelines for Transport Layer Security)