What is the purpose of data encryption?

• A. To filter incoming network traffic
• B. To convert data into a readable format
• C. To convert data into a coded format
• D. To capture network packets for analysis

Answer: (C)

The purpose of data encryption is to convert data into a coded format, ensuring that it is not easily readable by unauthorized individuals. This process uses algorithms to transform the original information, known as plaintext, into an encoded version called ciphertext. Only those with the proper decryption key can revert the ciphertext back to plaintext, allowing them to access the original data securely.

This security measure protects sensitive information as it travels across networks or is stored, safeguarding it from potential breaches. Data encryption is particularly critical for protecting personal information, financial data, and confidential communications, making it an essential aspect of network security and data protection practices.

Filtering incoming traffic, converting data into a readable format, or capturing packets do not address the core function of encryption, which is to secure data by rendering it unreadable without the right keys.