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1) which description below best describes the purpose of computer firewalls?

a. they check the behavior of the packet and do not allow anything into the network.

b. they do not allow anything in the network and do not check a packet’s credentials.

c. they watch the incoming packet and do not allow anything into the network.

d. they check the incoming packet’s credentials and behavior of the packet.

2) why was the internet originally constructed?

a. to enable researchers to communicate

b. to provide online search capabilities

c. to enable online video sharing

d. as a law enforcement database