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EC-Council

312-50V9 · Question #72

A person approaches a network administrator and wants advice on how to send encrypted email from home. The end user does not want to have to pay for any license fees or manage server services. Which…

The correct answer is C. Pretty Good Privacy (PGP). PGP (Pretty Good Privacy) is the best recommendation for free, serverless encrypted email as it uses public-key cryptography without requiring paid licenses or server infrastructure.

Cryptography

Question

A person approaches a network administrator and wants advice on how to send encrypted email from home. The end user does not want to have to pay for any license fees or manage server services. Which of the following is the most secure encryption protocol that the network administrator should recommend?

Options

  • AIP Security (IPSEC)
  • BMultipurpose Internet Mail Extensions (MIME)
  • CPretty Good Privacy (PGP)
  • DHyper Text Transfer Protocol with Secure Socket Layer (HTTPS)

How the community answered

(39 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    87% (34)
  • D
    8% (3)

Why each option

PGP (Pretty Good Privacy) is the best recommendation for free, serverless encrypted email as it uses public-key cryptography without requiring paid licenses or server infrastructure.

AIP Security (IPSEC)

IPSec is a network-layer VPN protocol designed to secure IP communications between hosts or networks, not to encrypt individual email messages end-to-end.

BMultipurpose Internet Mail Extensions (MIME)

MIME (Multipurpose Internet Mail Extensions) is an email format standard that defines attachment and content types; it does not provide encryption - that is the role of S/MIME, which requires certificate infrastructure.

CPretty Good Privacy (PGP)Correct

PGP is a free, open-standard encryption program that uses public-key cryptography to encrypt and sign email messages. It requires no server-side infrastructure - keys are managed locally by the user - satisfying the requirement for no license fees and no server management. Implementations like GNU Privacy Guard (GPG) are freely available and widely supported across email clients.

DHyper Text Transfer Protocol with Secure Socket Layer (HTTPS)

HTTPS is a web transport protocol that secures browser-to-server connections and does not encrypt email content at rest or provide end-to-end email encryption.

Concept tested: PGP email encryption without server or license cost

Source: https://www.gnupg.org/gph/en/manual.html

Topics

#PGP#email encryption#encryption protocol#free encryption

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