In microsoft word, when you highlight existing text you want to replace, you're in

a. basic mode.
b. automatic mode.
c. typeover mode.
d. insert mode.

The answer to this question is:

In Microsoft Word, when you highlight existing text you want to replace, you're in 
A-"Basic Mode"

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You must indent the items

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.