COMP177 Module 3 Review

A computer processor stores numbers using a base of _____.

• 16

• 10

• 8

• 2

Dictionaries are containers used to describe a(n) _____ relationship.

• associative

• one-to-one

• recursive

• isolated

If text_line = 'one fish two fish', what is the value of text_line[6]?

• ' '

• 'h'

• 'i'

• 's'

Which of the following statements about my_list is false?

• The element at index 1 is 'JFK'

• The list has a length of 3

• The list elements are all strings

• The index of the last item in the list is 2

Which of the following statements produces an error? Assume string_1 = 'abc' and string_2 = '123'

• string_2 = string_1

• string_1 = string_2 + "456"

• print(string_1 + string_2)

• string_1[1] = 'B'

The variable emails_dict is assigned with a dictionary that associates student ids with email addresses. Which statement prints the email address associated with the student id "C2104"?

• print(value of emails_dict("C2104"))

• print(key of emails_dict("C2104"))

• print(emails_dict["C2104"])

• print(emails_dict["[e-mail]"])

What is the base 10 representation of the binary number: 00001001?

• 5

• 9

• 17

• 1001

Which statement is true regarding the pop() method for sets?

• pop() removes the first item added to the set.

• pop() removes the last item added to the set.

• pop() removes a random item in the set.

• pop() returns but does not remove a random item in the set.

Which formatting presentation type is used to display the integer 43 as 0X2b (hexadecimal in uppercase)?

• h

• H

• x

• X

Which data type is the correct choice to store a student's test scores in chronological order?

• string

• list

• set

• dict