From the list of protocols, which is used to secure web transactions?

A.
XML (Extensible Makeup Language)

B.
SMTP (Simple Mail Transfer Protocol)

C.
SSL (Secure Sockets Layer)

D.
S/MIME (Secure Multipurpose Internet Mail Extensions)

Explanation:

The Secure Socket Layer is used to establish a secure communication connection between two
TCP-based machines. This protocol uses the handshake method. When a connection request is
made to the server, the server sends a message back to the client indicating a secure connection
is needed. The client then sends the server a certificate indicating the capabilities of the client. The
server then evaluates the certificate and responds with a session key and an encrypted private
key. The session is secure after this process.
Reference:
Mike Pastore and Emmett Dulaney , Security+ Study Guide , 2nd Edition, Alameda , Sybex , 2004,
p 365