Quiz Discussion

Which of the following is true for variable names in Python?
Course Name: Python

  • 1] unlimited length
  • 2] all private members must have leading and trailing underscores
  • 3] underscore and ampersand are the only two special characters allowed
  • 4] none of the mentioned
Solution
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# Quiz
1
Discuss

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

What is the result of cmp(3, 1)?

  • 1] 1
  • 2] 0
  • 3] True
  • 4] False
Solution
5
Discuss

What is the type of inf?

  • 1] Boolean
  • 2] Integer
  • 3] Float
  • 4] Complex
Solution
6
Discuss
Which of the following is an invalid variable?
  • 1] my_string_1
  • 2] 1st_string
  • 3] foo
  • 4] _
Solution
7
Discuss
All keywords in Python are in _________
  • 1] lower case
  • 2] UPPER CASE
  • 3] Capitalized
  • 4] None of the mentioned
Solution
8
Discuss

What is the output of print 0.1 + 0.2 == 0.3?

  • 1] True
  • 2] False
  • 3] Machine dependent
  • 4] Error
Solution
9
Discuss
What is the maximum possible length of an identifier?
  • 1] 31 characters
  • 2] 63 characters
  • 3] 79 characters
  • 4] none of the mentioned
Solution
10
Discuss
Which of the following is invalid?
  • 1] _a = 1
  • 2] __a = 1
  • 3] __str__ = 1
  • 4] none of the mentioned
Solution
# Quiz