Answer:
Web Server 
A web server is server software, or hardware dedicated to running this software, that can satisfy client requests on the World Wide Web. A web server can, in general, contain one or more websites. A web server processes incoming network requests over HTTP and several other related protocols.
 
        
             
        
        
        
Answer:By specifying conditions, you can create custom filters that narrow down the data in the exact way that you want. You do this by building a filter. If you've ever queried data in a database, this will look familiar to you. Point to either Number Filters or Text Filters in the list.
Explanation:
 
        
             
        
        
        
The answer is BCD; The BCD format is usually used to store data
        
             
        
        
        
The second one 
01111
This is because a computer uses binary and only understands two digits which consit of 1 and 0