John Is Working as a Security Advisor

John is working as a security advisor. Of late, he is going nuts with the number of virus infected computers reported to the IT department every day. A common cause of this seems to be virus infection while using web browsers. Which of the following should John advise the IT department to do to resolve the problem?

A) Disable unauthorized ActiveX controls
B) Implement a VPN
C) Install a firewall
D) Re-install the OS

Correct Answer:

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