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Study Guide: DFD and Visual Basic Exercise

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Study Guide: DFD and Visual Basic Exercise

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Questions and Answers

What is the purpose of the outer loop in the C++ code?

To declare variables

To jump to the next line (correct)

To print 'a' multiple times in a line

To print the '@'

What will be the output of the C++ code provided?

a@@@@ a@@@@ a@@@@ a@@@@

aaaa@@ aaaa@@ aaa@@ aa@@

aaaaa@ aaaaa@ aaaaa@ aaaaa@ (correct)

@@@@@ @@@@@ @@@@@ @@@@@

What does the inner loop in the C++ code control?

Exiting the program

Printing 'a' multiple times in a line (correct)

Printing '@'

Declaring variables

Which part of the C++ code handles displaying the message 'this is a program that prints a rectangle...'?

At the beginning of the main method Signup and view all the answers

What is the significance of the comment '//closing the first loop' in the C++ code?

It signifies the end of printing 'a' in a line Signup and view all the answers

What is the purpose of the first control mentioned in the text?

Displaying a message in DFD Signup and view all the answers

What should be considered when assigning names in DFD and programming languages?

Being cautious about capitalization since languages differentiate between upper and lower case Signup and view all the answers

What is the purpose of the 7th control mentioned in the text?

Performing an arithmetic operation to multiply values Signup and view all the answers

Which control is responsible for reading the number provided by the user?

Fifth control Signup and view all the answers

What is the purpose of the 6th control described in the text?

Creating a loop to cycle through values Signup and view all the answers

What is an essential step before displaying the final result to the user in DFD?

Performing an arithmetic operation Signup and view all the answers