Implementing and Operating Cisco Security Core Technologies (SCOR) — Question 426

Which type of encryption uses a public key and a private key?

Answer options

• A. nonlinear
• B. symmetric
• C. linear
• D. asymmetric

Correct answer: D

Explanation

The correct answer is D, as asymmetric encryption specifically relies on a pair of keys: a public key for encryption and a private key for decryption. Options A, B, and C do not describe this method; symmetric encryption, for example, uses the same key for both processes, while nonlinear and linear do not pertain to key-based encryption.