<span>D. Page Layout  i hope this helps </span>
        
                    
             
        
        
        
SSIDs should separate each network.
(d)SSIDs
<u>Explanation:</u>
In an organization or corporation office, End user is office staff he or she can access to different SSIDS, Where restrictions access can be configured at firewall level. 
So if any guest he or she will ask to connect different SSIDS so that guest will not enter to internal networks. Where guest is connected to only on restricted area network such as internet etc.  Due to this if guest pc is attacked by virus it can prevented by attacking the same to internal office network. 
 
        
             
        
        
        
Answer:
Electronic Data Interchange (EDI)
Explanation:
Electronic Data Interchange
It is the automated interchange of commercial information using a structured format. A process that allows a company to send information to another company electronically rather than on paper. Commercial entities that conduct business electronically are called business partners.
Numerous commercial documents can be exchanged using electronic data interchange, but the two most common are purchase orders and invoices. At a bottom, EDI interchanges the preparation and handling of mail associated with traditional commercial communication. However, the true power of EDI is that it standardizes the information communicated in commercial documents, which makes a "paperless" exchange possible.