________ is a built-in Windows backup utility.

a. Incremental backup
b. File History
c. System Reset
d. Time Machine

b. File History

Computer Science & Information Technology

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Answer these questions about destructors

a. What is a destructor and what must the name of a destructor be? b. When is a destructor called? c. What does a destructor actually do? d. What should a destructor do?

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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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Computer Science & Information Technology

The ____________________ layer is responsible for delivering data from one location to another on the network.

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

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Computer Science & Information Technology

You can remove a column of data in an Excel spreadsheet by:

A) right-clicking anywhere in the column and pressing the Delete key. B) selecting the data in the column, double-clicking, and then selecting Delete from the shortcut menu C) selecting the data in the column, right-clicking, and then selecting Delete from the shortcut menu. D) double-clicking anywhere in the column and pressing the Delete key.

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Computer Science & Information Technology