The ____ data model follows a treelike structure.

a. distributed
b. hierarchical
c. network
d. relational

Ans: b. hierarchical

Computer Science & Information Technology

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Computer Science & Information Technology

Which of the following statements are true?

a. A File object encapsulates the properties of a file or a path, but does not contain the methods for reading/writing. b. You can use the PrintWriter class for outputting text to a file. c. You can use the Scanner class for reading text from a file. d. An input object is also called an input stream. e. An output object is also called an output stream.

Computer Science & Information Technology