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Practice CPA®CPA ISC Practice Exam 2Question 21

Easy1 markMultiple Choice

Area II: SecurityConfidentialityEncryptionArea II

CPA · Question 21 · Area II: Security

Which encryption method uses a pair of keys: a public key for encryption and a private key for decryption?

Answer options:

A.

Symmetric encryption

B.

Asymmetric encryption

C.

Hashing

D.

Tokenization

How to approach this question

Recall the definition of Public Key Infrastructure (PKI) or Asymmetric cryptography.

Full Answer

B.Asymmetric encryption✓ Correct

Asymmetric encryption (like RSA) uses a public key to encrypt and a private key to decrypt.

Common mistakes

Confusing Symmetric (Same key) with Asymmetric.

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