(ISC)2 Certified in Cybersecurity Practice Exam

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What does cryptography primarily deal with?

Increasing data storage capacity
Ensuring data access permissions
Securing content and messages
Improving programming languages

The correct answer is: Securing content and messages

Cryptography primarily deals with securing content and messages, which is essential for protecting information from unauthorized access and ensuring that only intended recipients can read or modify it. The primary goal of cryptography is to maintain the confidentiality, integrity, and authenticity of data. This is achieved through various techniques such as encryption, where data is transformed into a format that is unreadable without a specific key. With cryptography, even if data is intercepted during transit, it remains unintelligible to anyone who does not have the appropriate decryption key. This is crucial in fields like communications, secure transactions, and data storage, where sensitive information must be safeguarded against eavesdropping, tampering, and forgery. While data storage capacity, access permissions, and programming languages are all relevant aspects of information technology and cybersecurity, they do not encompass the primary focus of cryptography, which is fundamentally about protecting the content and ensuring secure communication.