20+ Python Fullstack Developer Interview Questions and Answers

ArrayList is a resizable array implementation, while LinkedList is a doubly linked list implementation in Python.

• ArrayList uses contiguous memory allocation, while LinkedList uses non-contiguous memory allocation.

• ArrayList provides fast access to elements using index, while LinkedList provides fast insertion and deletion of elements.

• ArrayList is better for storing and accessing data sequentially, while LinkedList is better for frequent insertion and deletion operations.

• Exampl...read more

To delete and remove duplicates from an array of strings, use a set to store unique values.

• Convert the array to a set to automatically remove duplicates

• Convert the set back to a list to maintain the original order

• Example: array = ['apple', 'banana', 'apple', 'orange']

• Set(array) will result in {'apple', 'banana', 'orange'}

• List(set(array)) will give ['apple', 'banana', 'orange']

Find the first missing positive integer in a list of numbers

• Sort the list and iterate through it to find the first positive integer

• Use a set to keep track of positive integers already seen

• Return the first positive integer not in the set

Function to determine if a given string is a palindrome

• Create a function that takes a string as input

• Remove all non-alphanumeric characters and convert to lowercase

• Compare the string with its reverse to check if it is a palindrome

• Return True if it is a palindrome, False otherwise

Python is a high-level programming language known for its simplicity and readability. Functions are blocks of code that perform a specific task.

• Python is a high-level, interpreted, and general-purpose programming language.

• Features of Python include easy syntax, dynamic typing, automatic memory management, and extensive standard libraries.

• Functions in Python are blocks of code that perform a specific task and can be reused throughout the program.

• Example: def greet(name): print...read more

API stands for Application Programming Interface. It is used in development to allow different software applications to communicate with each other.

• APIs define the methods and data formats that applications can use to request and exchange information.

• They allow developers to access the functionality of a service or application without needing to understand its internal workings.

• APIs are commonly used to integrate different systems, automate tasks, and extend the functionality...read more

Strengths: Strong problem-solving skills, attention to detail, and ability to work well in a team. Weaknesses: Lack of experience with certain frameworks and technologies.

• Strength: Strong problem-solving skills

• Strength: Attention to detail

• Strength: Ability to work well in a team

• Weakness: Lack of experience with certain frameworks and technologies

Advantages and disadvantages of Python Fullstack Developer role

• Advantages: versatile skill set, high demand in the job market, ability to work on both front-end and back-end development

• Disadvantages: potential for burnout due to working on multiple aspects of a project, need to stay updated with constantly evolving technologies

Python list and tuple are both data structures used to store multiple items in a single variable, but list is mutable while tuple is immutable.

• List is defined using square brackets [] and can be modified after creation.

• Tuple is defined using parentheses () and cannot be modified after creation.

• Example of list: my_list = [1, 'apple', True]

• Example of tuple: my_tuple = (2, 'banana', False)

Access modifiers in Python are keywords used to restrict access to certain class members.

• Access modifiers in Python include public, protected, and private keywords.

• Public members can be accessed from outside the class, protected members can be accessed within the same module or subclass, and private members can only be accessed within the same class.

• Public members do not have any special symbol, protected members have a single underscore (_) prefix, and private members have a...read more

List is mutable, tuple is immutable in Python.

• List is defined using square brackets [], tuple using parentheses ().

• Elements in list can be changed, added, or removed. Tuple elements cannot be changed once defined.

• Lists are used for collections of items that may need to be modified. Tuples are used for fixed collections of items.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)

Interceptors are used to intercept and manipulate HTTP requests and responses in web applications.

• Interceptors can be used for logging, authentication, error handling, caching, and modifying request/response headers.

• In Angular, interceptors are used to add authentication tokens to outgoing requests or handle errors globally.

• In Spring Boot, interceptors can be used to log incoming requests, validate input, or modify response data.

Core Python refers to the basic and essential components of the Python programming language.

• Core Python includes fundamental concepts like data types, control structures, functions, and modules.

• It does not include any external libraries or frameworks like Django or NumPy.

• Understanding core Python is essential for building a strong foundation in Python programming.

Total full stack queries refer to the number of queries made to the full stack of technologies in a web application.

• Full stack queries involve interacting with both the front-end and back-end of a web application.

• Examples of full stack queries include fetching data from a database, updating user interface elements, and handling form submissions.

• Understanding how to optimize full stack queries can improve the performance of a web application.

Exception handling in Python is a way to handle errors that may occur during the execution of a program.

• Use try-except blocks to catch and handle exceptions

• Different types of exceptions can be caught and handled separately

• Use finally block to execute code regardless of whether an exception occurred

• Custom exceptions can be defined by creating a new class that inherits from the Exception class

Use the print function in Python to display an error message.

• Use the print function followed by the error message enclosed in quotes

• You can also use the sys module to display more detailed error messages

• Consider using try-except blocks to catch and print specific errors

Redux flow is a predictable state container for JavaScript apps.

• Actions are dispatched to the store

• Reducers specify how the state changes in response to actions

• State is updated immutably

• Components subscribe to the store to get updated state