High Definition Television
        
                    
             
        
        
        
It's C.spider software purpose is to find/view web documents.
        
             
        
        
        
It's usually in C: drive.
<span>C:\$Recycle.Bin
</span>But if you have several drives, there are Recycle Bins each drive.
        
                    
             
        
        
        
Answer: Network access control (NAC)
Explanation:
The solution that should be used is the network access control. Network access control helps in keeping devices and users that are unauthorized out of ones private network. 
In this case, since one will like to prevent the laptops from connecting to the network unless anti-virus software and the latest operating system patches are installed, then the network access control can be used. One can only give access to the device that it wants to give access to and prevent others from connecting.
 
        
             
        
        
        
I believe the correct answer is the first option. The primary difference between 3g and 4g cellular systems would be that 4g systems have faster transmission as compared to 3g. The G would mean generation. The very difference of both is their speeds.