Question 1

A subclass is...

Options :

A :

usually more general than its superclass.

B : usually more specialized than its superclass.

C :

always inherited directly from the type built-in class.

D : usually a twin of its superclass.

Answer: A

Question 2

Suppose you have the following code:

class ClientList(list):

def search_email(self, value):

result = [client for client in self if value in client.email]

return result

class Client:

all_clients = ClientList()

def __init__(self, name, email):

self.name = name

self.email = email

Client.all_clients.append(self)

Select all true statements. (select 2)

Options :

A :

all_clients attribute is an example of an instance attribute of Client class.

B : all_clients is a class attribute of Client class.

C : name and email attributes are examples of instance attributes of Client class.

D : search_email attribute is an example of an instance attribute of ClientList class.

Answer: B,C

Question 3

Given an SQLite database with a table named Products with columns ProductID, ProductName, and Stock, which of the following commands is the correct way to insert a new product with ProductID 456, ProductName "Widget", and Stock 100?

Options :

A : INSERT Products (ProductID, ProductName, Stock) VALUES (456, "Widget", 100);

B : INSERT INTO Products (ProductID, ProductName, Stock) VALUES ("Widget", 456, 100);

C : ADD INTO Products (ProductID, ProductName, Stock) VALUES (456, "Widget", 100);

D : INSERT INTO Products (ProductID, ProductName, Stock) VALUES (456, "Widget", 100);

Answer: D

Question 4

In Python, which of the following methods is necessary to override when inheriting from a built-in immutable class (like tuple or str) if you want to add additional attributes to it?

Options :

A : __new__()

B : __str__()

C : __init__()

D : __call__()

Answer: A

Question 5

You have the following snippet of code:import abc class Figure(abc.ABC): @abc.abstractmethod def area(self): pass class Square(Figure): def __init__(self, a): self.a = a def area(self): return self.a * self.aWhich of the following statement is true?

Options :

A : This code is erroneous. The @abc.abstractmethod decorator should be applied at the class level, not the method level.

B : You can create an instance of the Square class.

C : This code is erroneous. You should use the @abc.abstractclass decorator instead of @abc.abstractmethod.

D : You can create an instance of the Figure class.

Answer: B

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