Once you identify a virus has infected a system on your network, what is a first step you should take to mitigate the risk of the virus infecting other systems?
Explanation
Answer: A - The first thing you should to mitigate the risk of a virus on one system from infecting other systems on the network is quarantine the system from the rest of the network.
Key Takeaway: Every answer choice is important to do for maintaining an antivirus system and removing viruses, but when a system on the network becomes infected, the first thing to do is remove that system from the other systems on the network; otherwise, you risk infecting the other systems. This can be done by physically removing the network cord from the computer or disabling the network connection in the Windows 7 device manager. Alternatively, this can be done logically by moving the system to another VLAN on the network, or logically shutting off the port at the switch/router level.
