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CISA · Question #587

CISA Question #587: Real Exam Question with Answer & Explanation

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Submitted by andreas_gr· Apr 18, 2026Protection of Information Assets

Question

How does public key infrastructure (PKI) help to verify that a digitally signed document is not a forgery?

Options

  • ABy decrypting the signature with the signer's public key
  • BBy verifying the signature with the signer's private key
  • CBy checking the signature against the receiver's public key
  • DBy checking the signed document's audit history

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Topics

#PKI#Digital Signatures#Cryptography#Authentication
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