ITPEC IP October 2023 Question 39
ITPEC IP October 2023 — Question 39 of 100
S/MIME is a standard for protecting email with public-key cryptography and digital certificates. It can digitally sign a message to provide sender authentication and integrity, and encrypt a message so only the intended recipient can read it. Compatible email software performs these operations end to end.
Answer (b)
Why not others:
- (a) describes webmail
- (c) describes SMTP, which transfers outgoing mail but does not itself provide S/MIME's message-level signing and encryption
- (d) describes a receiving protocol such as POP3 or IMAP
Key rule: S/MIME secures message content using certificates; SMTP sends mail, while POP3 and IMAP retrieve or synchronize it.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.