Which of the following is used to create a secured connection over an unsecured network?

A.
TCP/IP protocol

B.
Virtual Private Network (VPN)

C.
Single Sign-on (SSO)

D.
Kerberos

Explanation:
Virtual Private Network (VPN) is used to create a secured connection over an unsecured network.

Answer C is incorrect. Single sign-on (SSO) is defined as a mechanism in which a single action of user
authentication and authorization is used to allow a user to access all computers and systems where
he got a access permission, without entering passwords for multiple times.

Answer D is incorrect. Kerberos is defined as a secure method used for authenticating a request for
a service in a computer network.

Answer A is incorrect. TCP/IP protocol is used to define the rule computers are required to follow
for communicating with each other over the internet.