Python Variables and Data Types MCQs with Answers Set 01

Question. Is Python case sensitive when dealing with identifiers?
(a) yes
(b) no
(c) machine dependent
(d) none of the mentioned
Answer: a

Question. What is the maximum possible length of an identifier?
(a) 31 characters
(b) 63 characters
(c) 79 characters
(d) none of the mentioned
Answer: d

Question. Which of the following is invalid?
(a) _a = 1
(b) __a = 1
(c) __str__ = 1
(d) none of the mentioned
Answer: d

Question. Which of the following is an invalid variable?
(a) my_string_1
(b) 1st_string
(c) foo
(d) _
Answer: b

Question. 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
Answer: a

Question. Which of the following is not a keyword?
(a) eval
(b) assert
(c) nonlocal
(d) pass
Answer: a

Question. All keywords in Python are in _________
(a) lower case
(b) UPPER CASE
(c) Capitalized
(d) None of the mentioned
Answer: d

Question. 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
Answer: a

Question. 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
Answer: b

Question. Which of the following cannot be a variable?
(a) __init__
(b) in
(c) it
(d) on
Answer: b