FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -When those computers make requests to sites and services on the Internet, the proxy server intercepts those requests and then communicates with web servers on behalf of those clients, like a middleman.

Detailed explanation-2: -An application proxy sits between the protected network and the network you want to be protected from. Every time an application makes a request, the application intercepts the request to the destination system.

Detailed explanation-3: -what is the name for a computer or application program that intercepts user requests for the internal secure network and then processes that request on behalf of the user? Proxy server.

Detailed explanation-4: -An SVC interrupts the program being executed and passes control to the supervisor so that it can perform the service. Programs request these services through macros such as OPEN (open a file), GETMAIN (obtain storage), or WTO (write a message to the system operator).

Detailed explanation-5: -An extranet is a private network, too. It works similarly to a company intranet; however an extranet allows access to authorized users from outside the company. These external users may include suppliers and partners.