CompTIA Exam Questions

which is used to secure web transactions?

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