You work for a small city IT department and you are currentl

You work for a small city IT department, and you are currently teaching a class to employees on computer and network security. You are describing some methods of preventing computers from being compromised by viruses, spyware, and adware. Of the following, what are some valid methods that will still allow customers to perform normal tasks on the Internet? (Choose two.)

A. Don’t open attachments from an unknown sender.

B. Use a pop-up blocker on your Web browser.

C. Set the Windows Firewall to allow no exceptions.

D. Disconnect the Ethernet cable from the computer.

Solution

A. Don’t open attachments from an unknown sender.

Do not open an email attachments or unknown links unless you know what it is, even if it appears to come from a friend or someone you know. Some viruses replicate themselves and spread via email. Stay on the safe side and confirm that the attachment was sent from a trusted source before you open it.

B. Use a pop-up blocker on your Web browser.

The pop-ups that generally creep into your system when you establish an internet connection seems very tempting because of the banners and ads, but these can be an attempt to get unauthorized access into your system. Pop-ups are not always harmful for your system, but in worse situations, these can consist of links of infected websites, through which malware writers try to infect your system. The pop-ups serve as a gateway for the viruses and spyware to enter into your system and then create havoc. This is the reason why you should opt for a pop-up blocker. Either you can go for a software-based blocker or a browser based pop-up blocker based on the kind of protection you need. These blockers help in protecting your system in many different ways.A. Don’t open attachments from an unknown sender.