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Which protocol is used for secure data transmission over the web ?

  • A.FTP
  • B.HTTP
  • C.TLS/SSL
  • D.SMTP

Answer: C

The protocol is TLS/SSL.

Transport Layer Security, and its deprecated predecessor SSL, encrypts the connection between client and server, checks data integrity and authenticates the server with certificates. HTTPS is HTTP running over TLS.

FTP and HTTP send data in plain text. SMTP is the mail transfer protocol and is unencrypted by default, though it can be secured with STARTTLS, which is itself TLS.

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