Pete, an employee, attempts to visit a popular social networking site but is blocked. Instead, a
page is displayed notifying him that this site cannot be visited. Which of the following is MOST
likely blocking Pete’s access to this site?

A.
Internet content filter

B.
Firewall

C.
Proxy server

D.
Protocol analyzer

Explanation:
Web filtering software is designed to restrict or control the content a reader is authorised to
access, especially when utilised to restrict material delivered over the Internet via the Web, e-mail,
or other means.