Which of the items listed below is the least strong security protocol?

Which of the items listed below is the least strong security protocol?

a) SFTP
b) SMTP
c) SSL
d) HTTPS

From the Combined Bank Officer (IT) October 2024 – Preliminary (BIBM) exam, question 58 of 95.

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All questions in Combined Bank Officer (IT) October 2024 – Preliminary (BIBM)