GIAC Foundational Cybersecurity Technologies Practice Test

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Prepare for the GIAC Cybersecurity Technologies Test. Use practice questions and detailed explanations to enhance your understanding and readiness. Start your journey to certification today!

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Which protocol is commonly used for securely transmitting data over a network?

HTTP
SFTP
TCP
UDP

The correct answer is: SFTP

SFTP, or Secure File Transfer Protocol, is specifically designed for securely transmitting data over a network. It operates over the SSH (Secure Shell) protocol, which ensures that data is encrypted during transmission. This encryption provides a layer of security against eavesdropping, tampering, and man-in-the-middle attacks, making SFTP a preferred choice for secure data transfer, especially when sensitive information is involved. In contrast, while HTTP is the foundation of data communication on the web, it does not inherently provide encryption or security features, which can leave data vulnerable to interception. TCP and UDP are transport layer protocols used to deliver data across networks, but they do not include built-in mechanisms for securing the data being transmitted. TCP offers reliability and ordered transmission, while UDP provides faster transmission without guarantees of delivery or order. However, neither of these protocols addresses security, which is why SFTP stands out as the correct choice for secure data transmission.