Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?
A. mobile transmission
B. optical resolution
C. bandless transmission
D. broadcast radio
Answer: D
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Answer the following statement true (T) or false (F)
The protocol used to send e-mail over the Internet is
a. HTTP. b. DHTML. c. DNS. d. SMTP.
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A) rich text B) drop-down list C) combo box D) combo