Practice python Questions!

Practice python Questions!

University

40 Qs

quiz-placeholder

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Practice python Questions!

Practice python Questions!

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

Ben Goldblatt

Used 23+ times

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40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given a custom Python class A, how can we make class A abstract?

custom Python classes are always abstract

specify the "abstract" keyword in one of its methods

specify "raise NotImplemented()" in one of its methods

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given a custom Python class A and subclasses B, C, and D that all contain a method op() with the same code. Where would be the preferred class to specify the method op() and its implementation?

include op() only in A

include op() in B, C, and D

no preferred location

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Given a custom Python class A and its subclasses B, C, and D, where all four classes contain a method op(). How can we ensure that the method op() in class A cannot be executed:

make the method op() in class A abstract

we don't need to do anything in particular

it's not possible to do this

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Given a custom Python class A and this code snippet: myobj1 = A() x = myobj1 + 7 y = 7 + myobj1 We can ensure that the preceding statements succeed by:

implementing the __add__() method

implementing the __radd__() method

no need for extra code

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Queues are useful for the following types of use cases:

scheduling tasks for execution (e.g., processes)

checking if expressions contain balanced parentheses

almost any type of use case involving trees

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Stacks are useful for the following types of use cases:

handling prefix and postfix expressions

checking if expressions contain balanced parentheses

almost any type of use case involving trees

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

A custom Python generator will:

include the yield keyword

be more efficient in terms of memory usage

does not have particular advantages

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