Computer Networking
Which of the following is required to communicate between two computers?

communications hardware
protocol
access to transmission medium
All of these
communications software

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Computer Networking
A front-end processor is

a processor in a large-scale computer that executes operating system instructions
preliminary processor of batch jobs.
a user computer system
None of these
a minicomputer that relieves main-frame computers at a computer centre of communications control functions

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Computer Networking
You need to allow one host to be permitted to attach dynamically to each switch interface. Which two commands must you configure on your catalyst switch to meet this policy?1. Switch (config-if) # ip access-group 102. Switch (config-if) # switchport port-security maximum 13. Switch (config) # access-list 10 permit ip host 14. Switch (config-if) # switchport port-security violation shutdown5. Switch (config) # mac-address-table secure

2, 3 and 5
2 and 4
4 and 5
1 and 3

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