World Science and Technology – Exercise – 3

136. What would you use for immediate, real-time communication with a friend?

(a) Instant Messenging
(b) E-Mail
(c) Usenet
(d) A mailing list

Answer
Answer : (a)
Explanation
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137. How can you catch a computer virus?

(a) Sending e-mail messages
(b) Using a laptop during the winter
(c) Opening e-mail attachments
(d) Shopping online

Answer
Answer : (c)
Explanation
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138. Where are the contents of your computer’s hard drive indexed?

(a) Yahoo!
(b) Google
(c) MSN
(d) None of the above

Answer
Answer : (d)
Explanation
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139. What kind of data can you send by e-mail?

(a) Audio
(b) Pictures
(c) Video
(d) All of the above

Answer
Answer : (d)
Explanation
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140. What is the difference between the Internet and an intranet?

(a) One is public, the other is private
(b) One is safer than the other
(c) One can be monitored, the other can’t
(d) None of the above

Answer
Answer : (a)
Explanation
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