Control Structures

What are the three main programming structures?

• Sequence, selection, iteration

• Structured, object-oriented, procedural

• Java, Python, Visual Basic

• Machine, assembly, high-level

Which control structure will execute an instruction only after the computer evaluates conditions to determine if a certain condition exists?

• Selection
• Loop
• Functional
• Sequence

Which type of programming structure requires each instruction to be performed in order, with no possibility of skipping an action or branching off to another action?

• Loop
• Sequence
• Selection
• Iteration

Jackson has written a section of code in his program that instructs a character to move forward unless it encounters an obstacle, such as a rock. If the character encounters an obstacle, then it should change direction before moving forward again. If it does not encounter an obstacle, it should continue moving forward. Which type of control structure has Jackson written?

• Selection
• Loop
• Functional
• Sequence

What type of flowchart is shown here?

• selection
• iteration / loop
• sequence

What type of flowchart is shown here?

• selection
• iteration / loop
• sequence

What is the Output if the user enters:
Yes

• Leave umbrella at home
• Take an umbrella

What is the Output if the temperature is:
19

• Below Freezing
• Above Freezing

1  Input a number
2  Check to see if the number ends in 0, 2, 4, 6 or 8?
 2a  If yes, write "The number is even."
 2b  If no, write "The number is odd."   This is an example of which type of control structure?

• Selection
• Iteration
• Loop
• Sequence

Which control structure indicates the do/while statement?

• Selective
• Loop
• Object
• Sequence