1.A proxy server is used for the which of the following:
a. To provide security against unauthorized users
b. To process client request for web pages
c. To process client request for database ACCESS
d. To provide TCP/IP
2.Operating system is:
a. A collection of hardware components
b. A collection of system software
c. A collection of input-output devices
d. None of the above

Please suggest me best answers for above MCQs , with your explanations...

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