Which of the following services is used to track the whereabouts of an individual?

a. Location-based service
b. Card-based service
c. Long tail
d. Web 2.0

a. Location-based service
A location-based service is a computer program that uses location data to control its features and the information it provides. Some location-based services are query based, allowing a user to request local maps and directions to points of interest, local traffic and weather information, or even information on the whereabouts of a friend or coworker.

Computer Science & Information Technology

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Which one of the following lines names a constant needed in a program that computes the price per square inch of a round pizza?

a. scanf("%lf", &radius); b. pi = 3.14159; c. #define PI 3.14159 d. #include e. none of the above

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Computer Science & Information Technology

Write a program that reads a C++ source-code file and reports the occurrence of each keyword in the file. Here is a sample run:

``` Enter a C++ source file name: Welcome.cpp int occurs 3 times void occurs 1 time ... static occurs 1 time ``` Suppose a set of keywords is already given as follows: ``` set s; s.insert("asm"); s.insert("auto"); s.insert("bool"); ... s.insert("while"); ``` So you don’t need to populate the set in the program.

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Different browsers and different versions of the same browser provide different amounts of padding and margin space for ____________________ markers.

Fill in the blank(s) with the appropriate word(s).

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Computer Science & Information Technology

________ is a measure of how two sets of data vary simultaneously

Fill in the blank(s) with correct word

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Computer Science & Information Technology