Probably the anti virus, so you don't get a virus from downloading the anti spyware program.
        
             
        
        
        
Answer:
C. IPIP
Explanation:
This protocol is known as an IP that stands for Internet Protocol. This protocol handles the simple task of making sure that the information is routed correctly to and from the corresponding computer machines through the internet. The sending and receiving machines are identified through their Internet Protocol Addresses which lets the protocol know exactly where the information is going and being sent from.
 
        
             
        
        
        
Answer:
2^11
Explanation:
Physical Memory Size = 32 KB = 32 x 2^10 B
Virtual Address space = 216 B
Page size is always equal to frame size.
Page size = 16 B. Therefore, Frame size = 16 B
If there is a restriction, the number of bits is calculated like this:  
number of page entries = 2^[log2(physical memory size) - log2(n bit machine)]
where
physical memory size = 32KB  which is the restriction
n bit machine = frame size = 16
Hence, we have page entries = 2^[log2(32*2^10) - log2(16)] = 2ˆ[15 - 4 ] = 2ˆ11
 
        
             
        
        
        
Answer: 
Serif without kerning is the first one
Italic is the second one
Bold is the third one
Serif with kerning is the fourth one 
Explanation:
I had this question and got this correct
 
        
             
        
        
        
<span>Open source software is usually free to download and install, and it can be studied, changed, and distributed according to the rights of the software. I don't believe there is any copyright laws on this type of software. The most known open source software is Linux and it's available for most operating systems right now. Typically, open source owners just ask for donations for their work.</span>