A typewriter that prints a message transmitted over a telegraph line is called a
a. computer.
b. monitor.
c. teletype.
d. terminal.
e. transponder.Guglielmo Marconi originally conceived of the radio as a way to
a. transmit telegraph messages without wires.
b. transmit electricity without wires.
c. transmit votes in national elections.
d. transmit light without wires.
e. All of the above
C, A
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Which of the following options allows you to convert the colors on your slides to the most readable grayscales for a black and white printer?
A. Monochrome B. Black and White C. Pure Black and White D. Grayscale
When a browser supports the details and summary elements,
a. the initial display does not show the content contained within either the details and or summary elements . b. the initial display shows only the content contained within the summary element. c. the initial display shows only the content contained within the details element but not the summary element. d. the initial display shows the content contained within both the details and summary elements.
To receive e-mail messages from an e-mail server, the e-mail client can use which of the fol lowing protocols?
a. SMTP b. SSH c. STP d. POP
____ detects other devices using the same radio channel and then switches the WLAN operation to another channel if necessary.
A. TCP B. PoE C. EDCA D. DFS