COMPSCI 101 - Lab 09 (FA23) Exam 2 Review

What is the output of this code?

• 8.0

• 4.0

• 10.0

• 7.0

What is the output of this code?

• True
• False

What is the output of this code?

• a = [10, 20, 30, 50]

  b = [10, 20, 30, 40]

• a = [10, 20, 30, 40]

  b = [10, 20, 30, 50]

• a = [10, 20, 30, 50]

  b = [10, 20, 30, 50]

• a = [10, 20, 30, 40]

  b = [10, 20, 30, 40]

Answer explanation

Concatenation of a + [50] creates a new list in memory

What will this code output?

• 20, and then None

• Only 20

• Only None

• None, and then 20

Answer explanation

Every function's default return value is None

What is the output of this code?

• DUms
• DUims
• DUim
• DUimds

What is the output of this code?

• 3
• 4

• 1
• 8

What is the output of this code?

• ocsou
• csisf

• reso!

• science

What is the output of this code?

• ['ace', 'Water', 'boat', 'teach', 'tribe']
• ['ace', 'Water', 'tribe', 'teach']
• ['ace', 'Water', 'tribe', 'teach', 'boat', '']
• ['Water', 'ace', 'boat', 'teach', 'tribe']

Answer explanation

Uppercase comes before lowercase in ASCII values

What error occurs here?

• NameError
• LogicError

• TypeError
• SyntaxError

Answer explanation

num ** num is not num^2 it num^num

What is the output of this code?

• 4
• 8
• 6

• 10