You work as a Network Administrator for uCertify Inc. You need to secure web services of your
company in order to have secure transactions. Which of the following will you recommend for
providing security?
A.
SSL
B.
VPN
C.
S/MIME
D.
HTTP
Explanation:
The Secure Sockets Layer (SSL) is a commonly-used protocol for managing the
security of a message transmission on the Internet. SSL has recently been succeeded by
Transport Layer Security (TLS), which is based on SSL. SSL uses a program layer located
between the Internet’s Hypertext Transfer Protocol (HTTP) and Transport Control Protocol (TCP)
layers. SSL is included as part of both the Microsoft and Netscape browsers and most Web server
incorrect. S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard for public key
encryption and signing of e- mail encapsulated in MIME. S/MIME provides the following
cryptographic security services for electronic messaging applications: authentication, message
integrity, non-repudiation of origin (using digital signatures), privacy, and data security (using
protocol used on the World Wide Web (WWW) to display Hypertext Markup Language (HTML)
pages. HTTP defines how messages are formatted and transmitted, and what actions Web
servers and browsers should take in response to various commands. For example, when a client
application or browser sends a request to the server using HTTP commands, the server responds
with a message containing the protocol version, success or failure code, server information, andincorrect. A Virtual Private Network (VPN) is a computer network that is implemented in an
additional software layer (overlay) on top of an existing larger network for the purpose of creating a
private scope of computer communications or providing a secure extension of a private network
into an insecure network such as the Internet. The links between nodes of a Virtual Private
Network are formed over logical connections or virtual circuits between hosts of the larger
network. The Link Layer protocols of the virtual network are said to be tunneled through the
underlying transport network.