What is 'data encryption'?

• A. The process of converting data into a coded format
• B. The backup of data to a secure location
• C. The sharing of data over the internet
• D. The process of deleting data securely

Answer: (A)

Data encryption is the process of converting data into a coded format, which secures the information and ensures that it can only be accessed or read by individuals with the correct decryption key or password. This is crucial for protecting sensitive information, such as personal details and financial records, especially when transmitted over networks or stored on devices. By transforming the original data into an unreadable format, encryption acts as a safeguard against unauthorized access and data breaches.

The other options represent different concepts in data management and security but do not accurately describe data encryption. For instance, backing up data involves creating copies for recovery purposes, sharing data over the internet pertains to the distribution of information, and securely deleting data focuses on removing it in a way that makes recovery impossible. Each of these processes serves different functions in information technology and data security.