Question 1

Which of the following options can be used to determine if an array contains any values?

Accepted Answer

A)  Use the Array class's size method 
B)  Use the Array class's empty? method 
C)  Use the Array class's length method 
D)  All of the above 
A)  Use the Array class's size method 
B)  Use the Array class's empty? method 
C)  Use the Array class's length method 
D)  All of the above

Question 2

In addition to variables, Ruby also permits the storage of collections of data using which of the following constructs?

Accepted Answer

A)  Arrays and Hashes 
B)  Lists and Collections 
C)  Variables and Constants 
D)  None of the above 
A)  Arrays and Hashes 
B)  Lists and Collections 
C)  Variables and Constants 
D)  None of the above

Question 3

Which of the following loops can be used to process the contents of an array?

Accepted Answer

A)  while 
B)  each 
C)  until 
D)  All of the above 
A)  while 
B)  each 
C)  until 
D)  All of the above

Question 4

The slice method can be used to retrieve a range of value from an array.

Accepted Answer

A) True 
 B)False

Question 5

The push and pop methods are used to add new items to the end of an array.

Accepted Answer

A) True 
 B)False

Question 6

The Array class's last method can be used to retrieve the first or last item from an array.

Accepted Answer

A) True 
 B)False

Which of the following options can be used to determine if an array contains any values?

In addition to variables, Ruby also permits the storage of collections of data using which of the following constructs?

Which of the following loops can be used to process the contents of an array?

The slice method can be used to retrieve a range of value from an array.

The push and pop methods are used to add new items to the end of an array.

The Array class's last method can be used to retrieve the first or last item from an array.

Ruby Basics

Interacting With Ruby

Working With Strings, Objects, and Variables

Implementing Conditional Logic

Working With Loops

Working With Regular Expressions

Object-Oriented Programming

File and Folder Administration

Debugging

Ruby on Rails Web Development

Filters

Exam 6: Working With Collections of Data

Which of the following options can be used to determine if an array contains any values?

In addition to variables, Ruby also permits the storage of collections of data using which of the following constructs?

Which of the following loops can be used to process the contents of an array?

The slice method can be used to retrieve a range of value from an array.

The push and pop methods are used to add new items to the end of an array.

The Array class's last method can be used to retrieve the first or last item from an array.

Ruby Basics

Interacting With Ruby

Working With Strings, Objects, and Variables

Implementing Conditional Logic

Working With Loops

Working With Regular Expressions

Object-Oriented Programming

File and Folder Administration

Debugging

Ruby on Rails Web Development

Filters