Quiz Discussion

Which of the following is an invalid variable?
Course Name: Python

  • 1] my_string_1
  • 2] 1st_string
  • 3] foo
  • 4] _
Solution
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# Quiz
1
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What is the maximum possible length of an identifier?
  • 1] 31 characters
  • 2] 63 characters
  • 3] 79 characters
  • 4] none of the mentioned
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2
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What is the result of cmp(3, 1)?

  • 1] 1
  • 2] 0
  • 3] True
  • 4] False
Solution
3
Discuss
Which of the following cannot be a variable?
  • 1] __init__
  • 2] in
  • 3] it
  • 4] on
Solution
4
Discuss

What is the type of inf?

  • 1] Boolean
  • 2] Integer
  • 3] Float
  • 4] Complex
Solution
5
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Which of the following is not a complex number?

  • 1] k = 2 + 3j
  • 2] k = complex(2, 3)
  • 3] k = 2 + 3l
  • 4] k = 2 + 3J
Solution
6
Discuss
Why are local variable names beginning with an underscore discouraged?
  • 1] they are used to indicate a private variables of a class
  • 2] they confuse the interpreter
  • 3] they are used to indicate global variables
  • 4] they slow down execution
Solution
7
Discuss
Which of the following is invalid?
  • 1] _a = 1
  • 2] __a = 1
  • 3] __str__ = 1
  • 4] none of the mentioned
Solution
8
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Is Python case sensitive when dealing with identifiers?
  • 1] yes
  • 2] no
  • 3] machine dependent
  • 4] none of the mentioned
Solution
9
Discuss

What does ~4 evaluate to?

  • 1] -5
  • 2] -4
  • 3] -3
  • 4] +3
Solution
10
Discuss
All keywords in Python are in _________
  • 1] lower case
  • 2] UPPER CASE
  • 3] Capitalized
  • 4] None of the mentioned
Solution
# Quiz