4. What is VPN and what are the functions of a VPN? (select all applicable)
a. Virtual Private Network – A private data network that makes use of the public telecommunication infrastructure, maintaining privacy through the use of a tunneling protocol and security procedures.
b. Virtual Public Network – A public network that provides secure data network connections for corporate companies to communicate between 2 offices or more.
c. Virtual Private Network – Provides secure network connection to an end user who would like to connect into his/her company’s intranet through an internet connection.
d. Virtual Private Network – Provides secure internet access for a company to the internet environment.