1) One of the the computer input device ? a) Microphone b) hard disk c) cpu 2) one of the computer network advantages ? a) Hacking b) Sharing devices c) Viruses 3) One of the computer network disadvantages ? a) sharing information b) communication c) Expensive devices (server) 4) It is the brain of the computer  a) motherboard b) CPU c) power supply 5) One of the computer advantage is backup? the meaning of backup? a) making copy b) deleting files c) adding new files 6) it is an example of a real life network a) computer network b) water network 7) There are two types of network according to the connection a) wireless b) cables c) Cables and wireless 8) One of the computer software a) snap chat b) memory 9) One of the network hadware a) switch b) microphone c) mouse 10) lan is bigger than wan a) true b) false 11) wan is faster in speed than lan a) true b) false

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