Chapter 4: Developing software

Which of the following examples of pseudocode best represents a definition?

• i ß 0

• PRINT a

• IF x < 0 THEN

• processReports()

What is one feature of a conditional statement?

• A conditional statement makes decisions during runtime.

• A conditional statement runs for as long as a condition is met.

• Each line of code in a conditional statement is run at least once.

• A conditional statement executes all lines of code in the order they are written.

What is the best description of the control structure being used on line 5 of the pseudocode?

• A Iteration

• B Sequence

• C Definition

• D Conditional statement

What is the value of 'a < b OR b <= c' when 'a < b' is True and 'b <= c' is False?

• False

• True

• 0

• 1

Bronte is writing code that needs to iterate over a set of data that she has stored in another variable. At runtime, the compiled code will not know how many items are stored in the variable. If the variable has no items in it, Bronte does not want the code to run. She wants the code to run for as long as a condition returns 'False'. Bronte should use a _______.

• while loop

• for loop

• if statement

• switch statement

Which of the following examples of pseudocode best represents a function?

• umbrella.broken

• checkRaining()

• rainHistory[5]

• isRaining ß True

Yolanda is writing a secure business application for her work. The application uses classes to store user data and she wants to make sure that the classes are as secure as possible. She wants the functions and methods within the user class to be visible only to that particular class. Which type of function visibility should Yolanda use?

• Public

• Private

• Secured

• Protected

Amira has implemented a function that takes arguments. When the function is called, the original data that is passed to the function can be used but not changed, even if it is modified within the function itself. The arguments that Amira has written belong to the category of

• pass by value.

• pass by global.

• pass by reference.

• pass by parameter.

By convention, which of the following elements should be included in internal documentation?

• Object descriptions and explanations of algorithms.

• Data dictionaries and descriptions of how to test the code.

• All pseudocode and information on upgrades and changes.

• A description of the program and expected inputs to functions.

Pradeep is writing software that manipulates data and saves them to files. The data he is manipulating includes images and sound. Which is the most appropriate file type Pradeep should use?

• XML file

• Delimited file

• Binary file

• Plain text file