Python Final Exam

15. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively? x=int(input)) y=int(input)) x=x/y y=y/x print(y)

1

29. What is the output of the following snippet? 1st=[3,1,-2] print(1st[1st[-1]])

1

8. Left-sided binding determines that the result of the following expression: 1//2*3

0

14. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively?

8.0

57. What is the output of the following snippet? def fun(x,y,z): return x+2*y+3*z print(fun(0,z=1,y=3))

9

21. An operator able to check whether two values are equal is coded as:

==

23. How namy stars will the following snippet send to the console? i=0 while i<=3 i+=2 print("*")

two

59. What is the output of the following snippet? dct = { 'one':'two', 'three':'one','two':'three'} v= dct['one'] for k in range(len(dct)): v= dct[v] print(v)

two

50. The following snippet: def func1(a): return a**a def func2(a) return func1(a)*func1(a) print(func2(2))

will output 16

11. What is the output of the following snippet? x=1 y=2 z=x x=y print(x,y)

21

54. What is the output of the following snippet? def any(): print(var+1, end=") var=1 any() print(var)

21

16. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively? x=input() y=int(input()) print(x*y)

33333

33. After execution of the following snippet, the sum of all vals elements will equal to: vals=[0,1,2,] vals=insert(0,1) del vals[1]

4

47. What is the output of the following snippet? def fun(x) x+=1 return x x=2 x=fun(x+1) print(x)

4

53. What is the outputof the following snippet? def fun(x): global y y=x*x return y fun(2) print(y)

4

58. What is the output of the following snippet? def fun(inp=2,out=3): return inp * out print(fun(out=2))

4

20. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively? x=int(input() y=int(input()) print(x+y)

6

39. What is the output of the following snippet? T = [[3-i for i in range (3)] for j in range (3)] s = 0 for i in range(3): s+= T[i][i] print(s)

6

45. What is the output of the following snippet? def f(x): if x==0: return 0 return x + f(x-1) print(f(3))

6

1. The \n diagraph forces the print() function to:

break the outputline

43. a built-in function is a function which:

comes with Python, and is an integral part of Python

28. How many hashes will the following snippet send to the console? var=1 while var<10 print("#") var=var<<1

four

4. The 0o prefix means that the number after it is denoted as:

octal

25. How many stars will the following snippet send to the console? i=0 while i<=5: i+=1 if i%2==0: break print("*")

one

7. Only one of the following statements is false - which one?

the result of the / operator is always an integer value

56. What is the output of the following snippet? list=['Mary', 'had', 'a', 'little', 'lamb'] def list(1st): del 1st[3] 1st [3] = 'ram' print(list(list))

the snippet is erroneous

40. What is the output of the following snippet? 1st = [[0,1,2,3] for i in range (2)] print(1st [2][0])

the snippet will cause a runtime error

18. What is the output of the following snippet? x=2+2*5 print(x)

the snippet will cause an execution error

44. The fact that tuples belong to sequence types means:

they can be indexed and sliced like lists

27. How many hashes will the following snippet send to the console? var=0 while var<6 var+=1 if var%2==0: continue print("#")

three

38. How many elements does the L list contain? 1st = [i for i in range(-1,2)]

three

12. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively? x=input() y=input() print(x+y)

-24

17. What is the output of the following snippet? z=y=x=1 print(x,y,z,sep='*')

1*1*1

19. What ins the output of the following snippet? x=1/2+3//3+4**2

17.5

26. How many hashes will the following snippet send to the console? for i in range(1) print("#") else: print("#")

2

31. What is the output of the following snippet? a=1 b=0 c=a&b d=a|b e=a^b print(c+d+e)

2

60. What is the output of the following snippet? tup = (1,2,4,8) tup = tup[1:-1] tup = tup[0] print(tup)

2

3. The value twenty point twelve times ten raised to the power of eight should be written as:

20.12E84

51. Which of the following statements is false?

The None value may not be used outside functions

22. The value eventually assigned to x is equal to:

True

30. What value will be assigned to the x variable? z=10 y=0 x=y<z and z>y or y>z and z<y

True

9. One of the following variables names is illegal - which one?

True

37. What is the output of the following snippet? 1st =[1,2,3] for v in range(len(1st1)): 1st,insert(1,1st[v]) print(|1)

[1,1,1,1,2,3]

24. What is the output of the following snippet? 1st=[1,2,3,4] print(-3:-2])

[2]

36. What is the output of the following snippet? 1st1 = [1,2,3] 1st2 =[] for v in 1st1: 1st2.insert(0,v) print(12)

[3,2,1]

10. The print() function can output values of:

any number of arguments (including zeros)

41. Which of the following lines properly starts a parameterless function definition?

def fun():

46. Which of the following lines properly starts a function using two parameters, both with zeroed defaulted values?

def fun(a=0,b=0):

6. The result of the following division: 1/1

is equal to 1.0

49. The following snippet: def func(a,b): return a**a print(func(2))

is erronous

55. Assuming that tuple is a correctly created tuple, the fact that tuples are immutable means that the following instruction: tuple[1]=tuple[1]+tuple[0]

is illegal

42. A function defined in the following way: def function(x=0): return x

may be invoked without any argument or with just one

34. Take a look at the snippet, and choose gthe true statement: nums = [1,2,3,] vals = nums del vals[1:2]

nums and vals are of the same length

35. Which of the following sentences is true? nums = [1,2,3,] vals = nums[-1:-2]

nums is longer than vals

5. The ** operator:

performs exponentiaton

48. What code would you insert into the commented line to obtain the output that reads: a b c Code: dct={} 1st=['a','b','c','d',] for i in range(len(1st)-1): dct[1st[i]] = 1st[i],) for i in sorted(dct,keys()): k=dct[i] # insert your code

print(k[0])

32. The second assignment: vals=[0,1,2] vals=[0], vals[2], vals[0]

reverses the list

2. The meaning of the keyword parameter is determined by:

the arguments's name specified along with its value

13. What is the output of the following snippet if the user enters two lines containing 2 and 4 respectively? x=int(input)) y=int(input)) x=x//y y=y//x print(y)

the code will cause a runtime error

52. What is the output of the following snippet? def fun(x): of x%2==o: return 1 else: return print(fun(fun(2))+1)

the code will cause a runtime error