SELF-REVIEW: MAKE A CUP OF COFFEE

1. True or False:  While writing pseudocodes, we ideally put instructions for commands on the same line.

2. What variable type would be best suited for determining if the kettle was boiling?

3. Assuming milk and sugar are booleans and both are True. What conditional statement is correct for a user who wants both milk and sugar in their coffee?

KNOWLEDGE CHECK: PROCEDURAL PROGRAMMING

1. Which of the algorithm types below finds the best solution in each and every step instead of being overall optimal?

2. Which of the following Big O notations for function types has the slowest time complexity?

3. True or False: Linear time algorithms will always run under the same time and space regardless of the size of input.

4. For determining efficiency, which of the following factors must be considered important?

PRACTICE QUIZ: MAPPING KEY VALUES TO DICTIONARY DATA STRUCTURES

1. What will be the output of the following code:

a = [[96], [69]]
print(''.join(list(map(str, a))))

2. Which of the following is TRUE about the map() and filter() functions?

3. What will be the output of the following code:

 z = ["alpha","bravo","charlie"]
 new_z = [i[0]*2for i in z]
 print(new_z)

KNOWLEDGE CHECK: FUNCTIONAL PROGRAMMING

1.

 def sum(n):
    if n == 1:
        return 0
    return n + sum(n-1)

 a = sum(5)
 print(a)

2. Statement A: A function in Python only executes when called.

Statement B: Functions in Python always returns a value.

3.

 some = ["aaa", "bbb"]

 #1
 def aa(some):
    return
 
 #2
 def aa(some, 5):
    return
 
 #3
 def aa():
    return
 
 #4
 def aa():
    return "aaa"

4. For the following code:

 numbers = [15, 30, 47, 82, 95]
 def lesser(numbers):
    return numbers < 50

 small = list(filter(lesser, numbers))
 print(small)

SELF-REVIEW: DEFINE A CLASS

1. Which of the following can be used for commenting a piece of code in Python?

Select all the correct answers.

2. What will be the output of running the following code:

 value = 7
 class A:
     value = 5
 a = A()
 a.value = 3
 print(value)

3. What will be the output of the following code:

 bravo = 3
 b = B()
 class B:
     bravo = 5
     print("Inside class B")
 c = B()
 print(b.bravo)

4. Which of the following keywords allows the program to continue execution without impacting any functionality or flow?

SELF-REVIEW: INSTANTIATE A CUSTOM OBJECT

1. Were you able to complete the code and get the expected final output mentioned?

2. What was the part that you were not able to complete? Specify the line numbers in the 8 lines of code.

The expected code for the program is as follows:

 class MyFirstClass():
     print("Who wrote this?")
     index = "Author-Book"
     def hand_list(self, philosopher, book):
         print(MyFirstClass.index)
         print(philosopher + " wrote the book: " + book)
 whodunnit = MyFirstClass()
 whodunnit.hand_list("Sun Tzu", "The Art of War")

3. Which of the following is the class variable in the code above?

4. How will you modify the code below if you want to include a “year” of publication in the output?

 class MyFirstClass():
     print("Who wrote this?")
     index = "Author-Book"
     def hand_list(self, philosopher, book):
         print(MyFirstClass.index)
         print(philosopher + " wrote the book: " + book)
 whodunnit = MyFirstClass()
 whodunnit.hand_list("Sun Tzu", "The Art of War")

def hand_list(self, philosopher, book, year):
print(philosopher + " wrote the book: " + book + “in the year ” + year)
whodunnit.hand_list("Sun Tzu", "The Art of War", “5th century BC”)

PRACTICE QUIZ: ABSTRACT CLASSES AND METHODS

1. Which of the following is not a requirement to create an abstract method in Python?

2. There is a direct implementation of Abstraction in Python.

3. Which OOP principle is majorly used by Python to perform Abstraction?

4. Which of the following statements about abstract classes is true?

5. True or False: Abstract classes cannot exist without Abstract methods present inside them.

SELF-REVIEW: WORKING WITH METHODS

1. True or False: A class can serve as a base class for many derived classes.

2. In case of multiple inheritance where C is a derived class inheriting from both class A and B, and where a and b are the respective objects for these classes, which of the following code will inherit the classes A and B correctly? (Select all that apply)

3. In Example 3 of the previous exercise, if we had modified the code to include a global variable ‘a = 5’ as follows:

 a = 5
 class A:
       a = 7
       pass

 class B(A):
       pass
 
 class C(B):
       pass

 c = C()
 print(c.a())

4. What function can be used other than mro() to see the way classes are inherited in a given piece of code?

5. The super() function is used to? (Select all that apply)

6. What is the type of inheritance in the code below:

 class A():
     pass
 class B(A):
     pass
 class C(B):
     pass

MODULE QUIZ: PROGRAMMING PARADIGMS

1. Which of the following can be used for commenting a piece of code in Python? (Select all that apply)

2. What will be the output of running the following code?

   value = 7
   class A:
       value = 5
   
   a = A()
   a.value = 3
   print(value)

3. What will be the output of running the following code?

   bravo = 3
   b = B()
   class B:
       bravo = 5
      print("Inside class B")
   c = B()
   print(b.bravo)

4. Which of the following keywords allows the program to continue execution without impacting any functionality or flow?

5. Which of the following is not a measure of Algorithmic complexity?

6. Which of the following are the building blocks of Procedural programming?

7. True or False: Pure functions can modify global variables.

8. Which of the following is an advantage of recursion?

9. Python allows for procedural, object oriented and functional programming paradigms. Which of the following statements are true? Choose all that apply.      

10. Algorithms are very useful in programming. Which of the following statements about an algorithm are true?  Select all that apply.     

11. Understanding algorithmic complexity is an important aspect of optimizing code. Which one of the following descriptions applies to linear time?     

12. Which of the following do you think are attributes of functional programming? Check all that apply     

13. Pure functions are used in functional programming to assure the integrity of data outside the scope of the pure function.    

14. Which of the following are advantages of using recursions? Check all that apply.    

15. The syntax of the extended slice is: 

16. State if the following definitions are correct.

map(): It returns all elements of an iterable when function returns True.
filter(): Applies function to every item in an iterable.

17. You have defined the class computer, which has the attributes processor and RAM. You’ve also created a child class laptop, for which you’ve added the attribute size, in addition to those of the parent class. Which one of the four concepts of object-oriented programming does this exemplify?  

18. You would like to instantiate an instance object in Python. What steps must you take to do this? Choose all that apply:    

19. You have written the following Python code that uses a Class:

class Bicycle:
        def __init__(self, size, gears)
                 self.size = size
                 self.gears = gears
        print(roadBike.gears)

20. Your code has the class meal, along with the method calories() that prints a number value. You also have three instance objects: breakfast, lunch, and dinner. If you call calories() in an instance and change the value, the other instances are not affected. True or false?    

21. In your code you have the parent class Pet and the child class Cat. If you update attributes in Cat which were inherited from Pet, then the same attributes would change for Pet as well. True or false?     

22. Before implementing an abstract method, which steps do you need to take? Select all that apply:

23. Which of the following is among the five primary types of inheritance? Choose all that apply: