PLTW EOC review #1 quiz

Which statement best describes an Abstraction?

• The result of how a program handles complexity by focusing on details

• The result of minimizing program details by reducing the size and complexity of the program

• The results of designing a program where the focus is on what each step does instead of how the steps are implemented

• The result of increasing program details or duplication in order to focus on the concepts while adhering to the rules of the programming language

Which action or expression name would with the right line of code?

• Output

  print (item)

• Boolean

  GroceryItems=[ ]

• Adding to a List

  while True

• Assignment Statement

  GroceryItems.append(item)

Which action or expression name would with the right line of code?

• Output

  GroceryItems.append(item)

• Boolean

  while True

• Adding to a List

  GroceryItems=[ ]

• Assignment Statement

  print (item)

Which action or expression name would with the right line of code?

• Output

  while True

• Boolean

  GroceryItems=[ ]

• Adding to a List

  GroceryItems.append(item)

• Assignment Statement

  print (item)

Which action or expression name would with the right line of code?

• Output

  while True

• Boolean

  GroceryItems.append(item)

• Adding to a List

  print (item)

• Assignment Statement

  GroceryItems=[ ]

You were just hired as an IT help desk professional at a local school. Your first task is to add some abstraction content to the computer science department's website to prepare students for their courses.

Which example is the Best example of an Abstraction?

• A mother gives step by step instructions for a recipe to her son.

• A coach uses a basketball to demonstrate scoring techniques in class.

• A teacher models how to solve an algebraic equation on the whiteboard.

• A teacher explains the mechanics of an engine by telling the students that turning the key will start the car.

On a spreadsheet, the SUM command can be used to find the sum of the numbers in specific cells. For example, if you needed the sum of all the cells A1 through M1, you would enter the formula =SUM(A1:M1). After entering the formula into a cell and pressing enter, the formula disappears and is replaced by the sum.

Why is the formula disappearing an example of abstraction?

• The SUM formula allows efficiency in calculating.

• The SUM formula minimizes repetition of data input.

• The SUM formula can be used multiple times within one spreadsheet.

• The SUM formula does not need to be seen or understood in order to calculate the sum of the cells

At the end of your first month working at the help desk, you review the number of help desk tickets by category. One of the most common requests was for additional information about file types.

  

Match each file type to its correct description.

• Image File

  A digital representation of visual information

• Programming File

  A digital depiction of a sound wave

• Audio File

  A large compressed file containing visual and audio content

• Video File

  A set of instructions that perform a task

At the end of your first month working at the help desk, you review the number of help desk tickets by category. One of the most common requests was for additional information about file types.

  

Match each file type to its correct description.

• Video File

  A digital representation of visual information

• Audio File

  A digital depiction of a sound wave

• Programming File

  A large compressed file containing visual and audio content

• Image File

  A set of instructions that perform a task

At the end of your first month working at the help desk, you review the number of help desk tickets by category. One of the most common requests was for additional information about file types.

  

Match each file type to its correct description.

• Programming File

  A digital depiction of a sound wave

• Image File

  A digital representation of visual information

• Video File

  A large compressed file containing visual and audio content

• Audio File

  A set of instructions that perform a task