AP CSP Unit 6 -#2

The value that is assigned in any list is considered...

• Element

• Index

• String

• Integer

Lists reference their values by using which of the following?

• Index

• Element

• Variables

• Loops

If I want to place a new element anywhere in a list, I would use which of the following methods?

• appendItem

• insertItem

• addItem

• joinItem

What is the output of word1?

var word="APComputerScience";

var word1=word.substring(2,word.length-7);

(a)  

When creating lists, sometimes you will need to create a “scrolling pattern”. 

Which of the following will not scroll beyond the end of a list?

• if  (index < myList.length-1) {

  Index++

  }

• if  (index > myList.length-1) {

  Index++

  }

• if  (index < myList.length) {

  Index++

  }

• if  (index > myList.length) {

  Index++

  }

Which of the following programming constructs is an example of an iteration?

• Lists

• Loops

• Functions

• Conditionals

Which of the following is a benefit of using a simulation instead of an experiment to make a prediction?

• A simulation produces results that are more accurate than experimental results.

• A simulation always produces the same output, so its results can be verified.

• A simulation can be used to model real-world events that are impractical for experiments.

• A simulation allows investigation of a phenomenon without the real-world limitations on time, safety, or budget.

The process of accessing every item in a list is considered which of the following?

• for Loops

• traversals

• while Loops

• appendItems

A school is developing a program to keep track of information about students and their class schedules. In which of the following instances would data abstraction be most helpful?

• The program includes individual variables to store the names of each student rather than a single list of students.

• A program includes multiple comments that could be combined into a single comment

• A program includes repeated programming statements that could be moved inside a loop

• A program includes repeated code that could be moved inside a function.

wordList is a list of words that currently contains the values ["tree", "rock", "air"].

Which of the following lines will result in the list containing the values ["air", "rock", "air"]

• wordList[0] = wordList[2]

• wordList[2] = wordList[0]

• insertItem(wordList, 0, "air")

• removeItem(wordList,0)