Which computer discipline involves the wildest scope of computer related knowledge

Which one of the following voltages should never be measured directly with a vom? a. 1200 v b. 500 v c. 800 v d. 100v

In microsoft word, when you highlight existing text you want to replace, you're in              a.  advanced mode.    b.  automatic mode.    c.  basic mode.    d.  typeover mode

Setting up a home network using wireless connections is creating a a. vpn b. lan c. wan d. mini-internet