1). Is Python case sensitive when dealing with identifiers?

[A]yes
[B]no
[C]machine dependent
[D]none of the mentioned

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2). What is the maximum possible length of an identifier?

[A]31 characters
[B]63 characters
[C]79 characters
[D]none of the mentioned

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3). Which of the following is invalid?

[A]_a = 1
[B]__a = 1
[C]__str__ = 1
[D]none of the mentioned

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4). Which of the following is an invalid variable?

[A]my_string_1
[B]1st_string
[C]foo
[D] _

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5). Why are local variable names beginning with an underscore discouraged?

[A]they are used to indicate a private variables of a class
[B]they confuse the interpreter
[C]they are used to indicate global variables
[D]they slow down execution

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6). Which of the following is not a keyword?

[A]eval
[B]assert
[C]nonlocal
[D]pass

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7). All keywords in Python are in _________

[A]lower case
[B]UPPER CASE
[C]Capitalized
[D]None of the mentioned

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8). Which of the following is true for variable names in Python?

[A]unlimited length
[B]all private members must have leading and trailing underscores
[C]underscore and ampersand are the only two special characters allowed
[D]none of the mentioned

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9). Which of the following is an invalid statement?

[A]abc = 1,000,000
[B]a b c = 1000 2000 3000
[C]a,b,c = 1000, 2000, 3000
[D]a_b_c = 1,000,000

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10). Which of the following cannot be a variable?

[A]__init__
[B]in
[C]it
[D]on

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