Python Mooc Assignment

22 Questions | By Support | Updated: Mar 22, 2022 | Attempts: 1175

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1.

You run the code below in idle. type(5) print(3.0-1) What's printed?
- A.
  
  Int
- B.
  
  2.0
- C.
  
  Int then 2.0
- D.
  
  Nothing
2.

Which is allowed in Python?
- A.
  
  X + y = 2
- B.
  
  X*x = 2
- C.
  
  2 = x
- D.
  
  Xy = 2
3.

You run the code below from the file editor. usa_gold = 46 uk_gold = 27 romania_gold = 1 total_gold = usa_gold + uk_gold + romania_gold print(total_gold) romania_gold += 1 print(total_gold) What is printed?
- A.
  
  74 then 74
- B.
  
  74 then 75
- C.
  
  74
- D.
  
  75
4.

What is the value of variable `u` from the code below? once = "umbr" repeat = "ella" u = once + (repeat+" ")*4
- A.
  
  Umbrella ella ella ella
- B.
  
  Umbrellaellaellaella
- C.
  
  Umbrella
- D.
  
  Umbrella4
5.

What does the code below print? pset_time = 15 sleep_time = 8 print(sleep_time > pset_time) derive = True drink = False both = drink and derive print(both)
- A.
  
  False then False
- B.
  
  False then True
- C.
  
  True then False
- D.
  
  True then True
6.

What's printed when x = 0 and y = 5? x = float(input("Enter a number for x: ")) y = float(input("Enter a number for y: ")) if x == y: if y != 0: print("x / y is", x/y) elif x < y: print("x is smaller") else: print("y is smaller")
- A.
  
  X is smaller
- B.
  
  Y is smaller
- C.
  
  X / y is 0.0
- D.
  
  None
7.

What is printed when the below code is run? mysum = 0 for i in range(5, 11, 2): mysum += i if mysum == 5: break mysum += 1 print(mysum)
- A.
  
  5
- B.
  
  6
- C.
  
  21
- D.
  
  24
8.

What does the code below print? s = "6.00 is 6.0001 and 6.0002" new_str = "" new_str += s[-1] new_str += s[0] new_str += s[4::30] new_str += s[13:10:-1] print(new_str)
- A.
  
  260000
- B.
  
  26100
- C.
  
  26 100
- D.
  
  Nothing, it will give an error
9.

How many times will the code below print "common letter"? s1 = "mit u rock" s2 = "i rule mit" if len(s1) == len(s2): for char1 in s1: for char2 in s2: if char1 == char2: print("common letter") break
- A.
  
  4
- B.
  
  0
- C.
  
  5
- D.
  
  7
10.

How many total lines of output will show up if you run the code below? def add(x, y): return x+y def mult(x, y): print(x*y) add(1,2) print(add(2,3)) mult(3,4) print(mult(4,5))
- A.
  
  0
- B.
  
  2
- C.
  
  4
- D.
  
  5
11.

What does the code below print? def sq(func, x): y = x**2 return func(y) def f(x): return x**2 calc = sq(f, 2) print(calc)
- A.
  
  4
- B.
  
  8
- C.
  
  16
- D.
  
  Error
12.

Examine the code below. What does always_sunny(('cloudy'), ('cold',)) evaluate to? def always_sunny(t1, t2): """ t1, t2 are non empty """ sun = ("sunny","sun") first = t1[0] + t2[0] return (sun[0], first)
- A.
  
  ('sunny', 'cc')
- B.
  
  ('sunny', 'ccold')
- C.
  
  ('sunny', 'cloudycold')
- D.
  
  Nothing
13.

What is the value of L after you run the code below? L = ["life", "answer", 42, 0] for thing in L: if thing == 0: L[thing] = "universe" elif thing == 42: L[1] = "everything"
- A.
  
  ["life", "answer", 42, 0]
- B.
  
  ["universe", "answer", 42, 0]
- C.
  
  ["universe", "everything", 42, 0]
- D.
  
  ["life", "everything", 42, 0]
14.

What is the value of L3 after you execute all the operations in the code below? L1 = ['re'] L2 = ['mi'] L3 = ['do'] L4 = L1 + L2 L3.extend(L4) L3.sort() del(L3[0]) L3.append(['fa','la'])
- A.
  
  ['mi', 're', ['fa', 'la']]
- B.
  
  ['mi', 're', 'fa', 'la']
- C.
  
  ['re', 'mi', ['fa', 'la']]
- D.
  
  ['do', 'mi', ['fa', 'la']]
15.

What is the value of brunch after you execute all the operations in the code below? L1 = ["bacon", "eggs"] L2 = ["toast", "jam"] brunch = L1 L1.append("juice") brunch.extend(L2)
- A.
  
  ['bacon', 'eggs', 'toast', 'jam']
- B.
  
  ['bacon', 'eggs', 'juice', 'toast', 'jam']
- C.
  
  ['bacon', 'eggs', 'juice', ['toast', 'jam']]
- D.
  
  ['bacon', 'eggs', ['toast', 'jam']]
16.

Which of the following is a good and valid definition for a class representing a car?
- A.
  
  Def class Car(object):
- B.
  
  Class Car(object):
- C.
  
  Def Car(object):
- D.
  
  Class A(object)
17.

Using the class definition below, which line creates a new Car object with 4 wheels and 2 doors? class Car(object): def __init__(self, w, d): self.wheels = w self.doors = d self.color = ""
- A.
  
  Car(mycar, 4, 2)
- B.
  
  Mycar = Car(4, 2, "white")
- C.
  
  Mycar = Car(4, 2)
- D.
  
  Mycar = Car(2, 4)
18.

Which of the following methods changes the color of the car, based on the definition below? class Car(object): def __init__(self, w, d): self.wheels = w self.doors = d self.color = ""
- A.
  
  Def paint(c): color = c
- B.
  
  Def paint(self, c): color = c
- C.
  
  Def paint(c): self.c = c
- D.
  
  Def paint(self, c): self.color = c
19.

You create a car with mycar = Car(4, 2). Which is a line of code to change the color of mycar to "red"? class Car(object): def __init__(self, w, d): self.wheels = w self.doors = d self.color = "" def paint(self, c): self.color = c
- A.
  
  Car.paint("red")
- B.
  
  Mycar.paint(red)
- C.
  
  Mycar.paint("red")
- D.
  
  Mycar.paint(Car, "red")
20.

With the code below, what does the line print(mycar == yourcar) print? class Car(object): def __init__(self, w, d): self.wheels = w self.doors = d self.color = "" def paint(self, c): self.color = c def __eq__(self, other): if self.wheels == other.wheels and \ self.color == other.color and \ self.doors == other.doors: return True else: return False mycar = Car(4, 2) mycar.paint("red") yourcar = Car(4,2) print(mycar == yourcar)
- A.
  
  None
- B.
  
  True
- C.
  
  False
- D.
  
  Error
21.

Which of the below is a getter method for the number of wheels? class Car(object): def __init__(self, w, d): self.wheels = w self.doors = d self.color = "" ---------------------------------- (A) def get_wheels(): return wheels (B) def get_wheels(): return self.wheels (C) def get_wheels(self): return wheels (D) def get_wheels(self): return self.wheels
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
22.

What line could replace ____blank____ to create a class that inherits from Animal in the code below? ____blank____ def speak(self): print("ruff ruff") d = Dog(7) d.set_name("Ruffles") d.speak()
- A.
  
  Class Dog(Animal):
- B.
  
  Class Animal(Dog):
- C.
  
  Class Dog(object)
- D.
  
  None