If you want to send an Email, the things you may have are ( ).
A. Phone number of recipient, Smart Phone
B. Internet resource, living address
C. Living address, tablets
D. Smart phone, internet resource,
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Each email have some factors on the below except ( ).
A. post fee
B. sender
C. receiver
D. message
The following statements are correct except ( ).
A video conference is live video streamed over the internet so that people can communicate face to face without being in the same room.
B. Spam emails can be a problem. So can phishing emails, which are designed to trick people into giving away personal information.
C. Because each communication lasts only milliseconds, the web server cannot communicate with many computers at the same time.
D. Websites and webpages are joined together using hyperlinks. Clicking on a hyperlink takes us to another site or page.
The reason why to video conference with another person, both people need an internet-connected computer with a monitor, webcam, microphone and speakers are on the below except ( ).
A. The webcam allows video images to be sent.
B. Those video images which are sent are seen on the monitor.
C. the microphone cannot allow sound to be transmitted.
D. those sounds being transmitted is heard through speakers.
Which one isn’t the characterize wireless technologies?
A. Spectrum
B. Transmission speeds
C. Manual Service
D. Transmission mechanism
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