quiz.txt

1) Which of these programming paradigms does Python support?
a) structured
b) object-oriented
c) functional
d) all of the above
d

2) How would you specify literal characters `{` and `}` in f-strings?
a) `{{` and `}}` respectively
b) `\{` and `\}` respectively
a

3) If you define a function with arguments as `total(n1, n2)`, can you still call this function using keywords, for example `total(n2=5, n1=100)`?
a) False
b) True
b

4) Given a sequence object named `seq` and a positive integer `n`, which of these is equivalent to `seq[-n]`?
a) `seq[len(seq) - n + 1]`
b) `seq[len(seq) - n - 1]`
c) `seq[len(seq) - n]`
c

5) Given a dict object named `fruits` and you have a loop `for k in fruits`, what does `k` get in each iteration?
a) key
b) value
c) key-value pair as a tuple object
a

6) Unary operators `+`, `-` and `~` have higher precedence over the multiplication `*` operator?
a) True
b) False
a

7) What would be the output for `int(' \t 3a ', 16)`?
a) ValueError: invalid literal for int() with base 16: ' \t 3a '
b) 58
c) 3
b

8) If you use the `return` keyword without an expression:
a) `None` value is used as the default
b) you'll get SyntaxError
c) you'll get runtime exception
a

9) Which command would you use to view the entire contents of the current function code with `pdb`?
a) f
b) ll
c) c
d) p
b

10) Given two set objects `set1` and `set2`, what would be the equivalent for `set1 ^ set2`?
a) `(set2 - set1) | (set1 - set2)`
b) `set1.symmetric_difference(set2)`
c) Both a) and b)
c

11) Which of these statements would you use if you want to define a placeholder function which does nothing?
a) `none`
b) `pass`
c) `nop`
d) Both a) and b)
b

12) Which of these statements is correct?
a) `from math import fact=factorial`
b) `from math import factorial as fact`
c) Both a) and b)
b

13) By executing the code `*a, b = (*(1, 2), 3, *(4, 5))` you'll get:
a) SyntaxError
b) a = [1, 2, 3, 4] and b = 5
c) a = 1 and b = [2, 3, 4, 5]
d) a = (1, 2, 3, 4) and b = 5
b

14) Which of these built-in functions support the `key` argument to provide a custom function?
a) `sorted()`
b) `min()`
c) `max()`
d) all of the above
d

15) Which of these values can be used as a dict key or as a set element?
a) (1, 2)
b) [1, 2, 3]
c) Both a) and b)
a

16) Which of these is a valid integer value?
a) `100`
b) `0x1F`
c) `2_3_4_5`
d) all of the above
d

17) Given `nums = [1, 4, 6, 22, 3, 5]`, which of these is NOT a valid list operation?
a) `nums[1:4] = [-100]`
b) `nums[-2:] = 'hello'`
c) `nums += ('a', 'b')`
d) `nums += 100`
d

18) Given `fruit = 'apple'`, which of these will give you a TypeError prior to Python version 3.13?
a) `fruit.replace('p', 'a', count=1)`
b) `fruit.replace('p', 'a', 1)`
c) `fruit.replace('p', 'WXYZ')`
a

19) The default mode for the built-in function `open()` is:
a) `rt` (read text mode)
b) `rb` (read binary mode)
a

20) Which of these can be a valid value for `sys.argv[0]`?
a) name of the Python script
b) -c
c) empty string
d) all of the above
d

21) Which string syntax allows you to embed expressions within `{}`?
a) single quoted
b) double quoted
c) raw strings
d) format strings
e) all of the above
d

22) Which of these is the correct order of usage with `range()` function and sequence slicing?
a) start, stop and step
b) start, step and stop
c) step, start and stop
a

23) Which of these is true?
a) every iterator is also an iterable
b) every iterable is also an iterator
c) Both a) and b)
a

24) Which built-in function helps you to get the codepoint of a character?
a) `codepoint()`
b) `chr()`
c) `ord()`
c

25) Which of these built-in features can be used to capture the output of an external command?
a) `os.popen()`
b) `os.output()`
c) `subprocess.check_output()`
d) Both a) and c)
d

26) `num > 10 and num <= 20` is same as:
a) `10 < num <= 20`
b) `20 >= num > 10`
c) Both a) and b)
c

27) What's the default exception raised by raise if there's no active exception?
a) RuntimeError
b) AssertionError
a

28) Which built-in function would you use to iterate over two or more iterables simultaneously?
a) `parallel()`
b) `zip()`
c) `iter()`
b

29) What does this function definition `def myfunc(**myargs)` do?
a) accepts arbitrary positional arguments
b) accepts arbitrary keyword arguments
c) Both a) and b)
b

30) Which of the following is the correct way to join a list of string values?
a) `['hi', 'bye'].join('-')`
b) `'-'.join(['hi', 'bye'])`
c) Both a) and b)
b

31) What will be the output for `print(r'\')` and `print(r'\\')`?
a) SyntaxError and \\
b) \ and \\
c) \ for both
a

32) Is it valid to combine more than one string prefix such as `b`, `r` and `f`? For example, what would be the output for `print(rf'C:\\quest{name}')` given `name = '\todo\ip.txt'`?
a) SyntaxError
b) C:\\quest\todo\ip.txt
c) C:\\quest    odo\ip.txt
c

33) What would happen if you call a function before it is defined?
a) NameError
b) function gets called
c) TypeError
a

34) What would happen if you use the `<` or `<=` or `>` or `>=` operators between numeric and string values?
a) Number will be converted to string
b) String will be converted to number
c) TypeError
c

35) The current working directory has an empty file named `math.py`. What will you get if you execute `print(math.pi)` after importing the `math` module?
a) 3.141592653589793
b) AttributeError: module 'math' has no attribute 'pi'
b

36) Given `chars = tuple('hello')`, what'd you get for `print(chars[0])` and `chars[0] = 'H'`?
a) h and TypeError
b) TypeError and TypeError
a

37) Given `primes = [2, 3, 5, 7, 11]`, what'd you get for `primes[5]` or `primes[-6]`?
a) IndexError: list index out of range
b) 11
c) 2
a

38) Given `primes = [2, 3, 5, 7, 11]`, what'd you get for `primes[:5]` or `primes[-6:]`?
a) IndexError: list index out of range
b) [2, 3, 5, 7, 11]
c) [11, 7, 5, 3, 2]
d) []
b

39) Given `nums = (1, 2)`, will `(a, b, c) = nums` or `(*a, *b) = nums` raise an exception?
a) both are valid
b) you'll get ValueError and SyntaxError respectively
c) first one is valid
d) second one is valid
b

40) Given `nums = [42, 3]`, which of these statements will update `nums` to `[42, 3, 5]`?
a) `nums += 5`
b) `nums += [5]`
c) both a) and b)
d) both a) and b) are invalid
b

41) Given `nums = ([1, 2], 'a', 3)`, what'd you get for `nums[0][0] = 'apple'` followed by `nums[1] = 'fig'`?
a) TypeError and TypeError
b) `(['apple', 2], 'a', 3)` and `(['apple', 2], 'fig', 3)`
c) `(['apple', 2], 'a', 3)` and TypeError
d) TypeError and `([1, 2], 'fig', 3)`
c

42) Given `d = dict(cat=12, dog=5, rat=10, bat=100)`, what'd you get for `a, *b, c = d`?
a) `a = 'cat'`, `b = ['dog', 'rat']` and `c = 'bat'`
b) ValueError
c) SyntaxError
d) `a = ('cat', 12)`, `b = [('dog', 5), ('rat', 10)]` and `c = ('bat', 100)`
a

43) Given `nums = [1, 4, 6, 22, 3, 5, 4, 3, 6, 2, 1, 3, 1]`, what'd you get for `list(dict.fromkeys(nums))`?
a) ValueError
b) SyntaxError
c) `[1, None, 4, None, 6, None, 22, None, 3, None, 5, None, 2, None]`
d) `[1, 4, 6, 22, 3, 5, 2]`
d

44) What'd be the output for `set([3, 2, 3.0]) == {3, 2}`?
a) True
b) False
a

45) What'd you get for `'fig'.join('apple', 'banana')` and `'fig'.join(('apple', 'banana'))`?
a) `'applefigbanana'` and `'applefigbanana'`
b) `'figapplebanana'` and `'figapplebanana'`
c) TypeError and `'applefigbanana'`
d) TypeError and `'figapplebanana'`
c

46) What'd you get for `'na naanana'.removesuffix('na')` and `'na naanana'.rstrip('na')`?
a) `'na naa'` and `'na '`
b) `'na naana'` and `'na '`
c) `'na naana'` and `' '`
d) `'na naa'` and `' '`
b

47) Which string method will help you change `'thIs iS a saMple StrIng'` to `This Is A Sample String`?
a) `title()`
b) `capitalize()`
c) `swapcase()`
a

48) What'd be the output for `'phototonic'.count('oto')`?
a) 2
b) 1
c) 0
b

49) Given `nums = [1, 4, 6, 22, 3]`, what'd you get for `(n * n for n in nums)`?
a) tuple comprehension
b) SyntaxError
c) generator expression
c

50) Which built-in module has a provision to edit a file in-place?
a) `fileinput`
b) `sys`
c) `pathlib`
a