World Science and Technology – Exercise – 1

31. Which is the best search tool for finding Web sites that have been handpicked and recommended by someone else?

(a) Subject directories
(b) Search engines
(c) Meta-search engines
(d) Discussion groups

Answer
Answer : (a)
Explanation
Explanation : Subject directories tend to house fewer—sometimes more relevant—sites than those found through search engines. Sites in a subject directory often have been handpicked by editorial teams or specialists in a particular field. Let us discuss.
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32. A program that neither replicates or copies itself, but does damage or compromises the security of the computer. Which ‘Computer Virus’ it is?

(a) Joke Program
(b) Worm
(c) Trojan
(d) Hoax

Answer
Answer : (c)
Explanation
Explanation : Typically it relies on someone emailing it to you, it does not email itself, it may arrive in the form of a joke program or software of some sort. Let us discuss.
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33. What does ECP stand for?

(a) Extended Capabilities Port
(b) Extra Compatible Part
(c) Extended Connection Port
(d) External Cordless Peripheral

Answer
Answer : (a)
Explanation
Explanation : An Extended Capabilities Port is about 10 times faster than the old standard one, but it is used the same way a regular parallel port is. Let us discuss.
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34. What is a GPU?

(a) Grouped Processing Unit
(b) Graphics Processing Unit
(c) Graphical Performance Utility
(d) Graphical Portable Unit

Answer
Answer : (b)
Explanation
Explanation : It is a chip dedicated to performing 3D calculations. Let us discuss.
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35. Which company created the most used networking software in the 1980’s

(a) Microsoft
(b) Sun
(c) IBM
(d) Novell

Answer
Answer : (d)
Explanation
Explanation : Novell (based in Provo, UT) created NetWare which is still one of the most used PC networking systems in the world. Let us discuss.
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