You work as a Network Consultant. A company named Tech Perfect Inc. hires you for security
reasons. The manager of the company tells you to establish connectivity between clients and servers
of the network which prevents eavesdropping and tampering of data on the Internet. Which of the
following will you configure on the network to perform the given task?

A.
WEP

B.
IPsec

C.
VPN

D.
SSL

Explanation:
In order to perform the given task, you will have to configure the SSL protocol on the
network. Secure Sockets Layer (SSL) is a protocol used
to transmit private documents via the Internet. SSL uses a combination of public key and symmetric
encryption to provide communication
privacy, authentication, and message integrity. Using the SSL protocol, clients and servers can
communicate in a way that prevents
eavesdropping and tampering of data on the Internet. Many Web sites use the SSL protocol to
obtain confidential user information, such as
credit card numbers. By convention, URLs that require an SSL connection start with https: instead of
http:. By default, SSL uses port 443 for
secured communication.
Answer option B is incorrect. Internet Protocol Security (IPSec) is a method of securing data. It
secures traffic by using encryption and digital
signing. It enhances the security of data as if an IPSec packet is captured, its contents cannot be
read. IPSec also provides sender verification
that ensures the certainty of the datagram’s origin to the receiver.
Answer option A is incorrect. Wired Equivalent Privacy (WEP) is a security protocol for wireless local
area networks (WLANs). It has two
components, authentication and encryption. It provides security, which is equivalent to wired
networks, for wireless networks. WEP encrypts
data on a wireless network by using a fixed secret key. WEP incorporates a checksum in each frame
to provide protection against the attacks
that attempt to reveal the key stream.
Answer option C is incorrect. VPN stands for virtual private network. It allows users to use the
Internet as a secure pipeline to their corporate
local area networks (LANs). Remote users can dial-in to any local Internet Service Provider (ISP) and
initiate a VPN session to connect to their
corporate LAN over the Internet. Companies using VPNs significantly reduce long-distance dial-up
charges. VPNs also provide remote
employees with an inexpensive way of remaining connected to their company’s LAN for extended
periods.