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PayPal Interview Questions and Answers for Freshers
31 Interview questions
C is a procedural programming language while C++ is an object-oriented programming language with features like classes and inheritance.
C is a procedural programming language, while C++ is a multi-paradigm language with support for object-oriented programming.
C does not support classes and objects, while C++ does.
C does not have features like inheritance and polymorphism, which are present in C++.
C is a subset of C...
Dijkstra's Shortest Path Problem
Given an undirected graph with ‘V’ vertices (labeled 0, 1, ... , V-1) and ‘E’ edges, where each edge has a weight representing the distance between two connected nodes (X, ...
Dijkstra's algorithm is used to find the shortest path from a source node to all other nodes in a graph with weighted edges.
Implement Dijkstra's algorithm to find the shortest path distances from the source node to all other nodes.
Use a priority queue to efficiently select the next node with the shortest distance.
Update the distances of neighboring nodes based on the current node's distance and edge weights.
Handle...
Query to find the nth highest salary from a database
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT clause to select the nth highest salary
Consider handling cases where there may be ties for the nth highest salary
Stack is used for static memory allocation and stores local variables, while Heap is used for dynamic memory allocation and stores objects.
Stack is faster than Heap as it has a fixed size and memory allocation is done at compile time.
Heap is slower than Stack as memory allocation is done at runtime and requires more complex management.
Stack memory is limited and typically smaller in size, while Heap memory is larg...
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Design a Cinema Ticket Reservation System
Use a database to store movie information, showtimes, and seat availability
Allow users to search for movies, select showtimes, and choose seats
Implement a payment system for ticket purchases
Send confirmation emails with QR codes for ticket validation
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
OOP focuses on creating objects that interact with each other to solve problems.
Key concepts include encapsulation, inheritance, and polymorphism.
Encapsulation involves bundling data and methods that operate on the data into a single unit.
Inheritance allows classes to inher...
Kth Largest Element Problem
Given an array containing N distinct positive integers and a number K, determine the Kth largest element in the array.
Example:
Input:
N = 6, K = 3, array = [2, 1, 5, 6, 3, 8...
Find the Kth largest element in an array of distinct positive integers.
Sort the array in non-increasing order and return the Kth element.
Handle multiple test cases efficiently.
Ensure all elements in the array are distinct.
SQL query to find the nth highest salary
Use the ORDER BY clause to sort salaries in descending order
Use the LIMIT and OFFSET clauses to skip the first n-1 highest salaries
Combine the above steps in a single query to find the nth highest salary
Delete a Node from a Linked List
You are provided with a linked list of integers. Your task is to implement a function that deletes a node located at a specified position 'POS'.
Input:
The first line con...Implement a function to delete a node from a linked list at a specified position.
Traverse the linked list to find the node at the specified position.
Update the pointers of the previous and next nodes to skip the node to be deleted.
Handle edge cases such as deleting the head or tail of the linked list.
Ensure to free the memory of the deleted node to avoid memory leaks.
Virtual functions are functions in a base class that are overridden in derived classes to achieve runtime polymorphism.
Virtual functions are declared in a base class with the 'virtual' keyword.
They are overridden in derived classes using the 'override' keyword.
They allow a function to be called based on the runtime type of an object.
Virtual functions enable dynamic binding and late binding in C++.
Example: virtual ...
PayPal Interview Experiences for Freshers
25 interviews found
Anonymous
Selected
I applied via LinkedIn and was interviewed in Nov 2024. There were 3 interview rounds.
Coding test was on HackerRank
(1 Question)
- Q1. Easy-Medium DSA Questions
(1 Question)
- Q1. Asked from my resume
I appeared for an interview in Oct 2024.
(2 Questions)
- Q1. Design Rate Limiter LLD
- Ans.
Design a rate limiter to control the number of requests a user can make in a given time frame.
Define rate limiting strategies: Fixed Window, Sliding Window, Token Bucket.
Use a data store (e.g., Redis) to track request counts per user.
Implement a reset mechanism to clear counts after the time window.
Consider edge cases like burst traffic and user authentication.
Example: Allow 100 requests per hour per user.
- Q2. What are SOLID Principles? Springboot questions
Interview Preparation Tips
- LLD
Sarath
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. They asked about core Java, Spring Boot annotations, SQL joins, and a problem about finding the second largest number—they wanted the time and space complexity too.
- Q2. Springboot annotations.
I applied via Campus Placement and was interviewed in Nov 2023. There were 2 interview rounds.
5 MCQ questions, and 1 coding question similar to Leetcode medium-hard level (topic-greedy).
(2 Questions)
- Q1. Basic DSA questions related to strings, linkedlists, binary search etc.
- Q2. Questions related to resume
Interview Preparation Tips
- DSA
- DBMS
Hackerrank - 1.5 hour
Basic questions of DSA were asked
(2 Questions)
- Q1. Linked Lists, Trees , Arrays
- Q2. Hash maps, oops, Sql
(1 Question)
- Q1. Question related to JD, some basic questions
Interview Preparation Tips
Selected
I applied via Instahyre and was interviewed before Aug 2022. There were 5 interview rounds.
There 2 coding rounds one on online and other on one-one discussion, both including few problem solving on DS and Algo on topics of Trees, Priority Queue, Arrays, DFS
(2 Questions)
- Q1. One of the question was about return min element in stack in constant time (O(1)).
- Ans.
Implement a stack that supports retrieving the minimum element in constant time.
Use an auxiliary stack to keep track of minimum values.
Push the current minimum onto the auxiliary stack whenever a new element is pushed.
When popping an element, also pop from the auxiliary stack if it is the current minimum.
Example: For stack [3, 5, 2], min stack would be [3, 2].
To get min: simply return the top of the min stack.
- Q2. Find the and return if the given file path existing in the given file hierarcy(file system).
- Ans.
Check if a given file path exists in the file system hierarchy and return the result.
Use file system APIs to check if the given file path exists in the hierarchy.
Traverse the file system hierarchy starting from the root directory to find the given file path.
Return true if the file path exists, false otherwise.
(2 Questions)
- Q1. This round was regarding LLD and HLD round, question on java and resume and LLD and HLD. Java 1) why functional interface 2) how would you use and make yuor own functional interface 3) Options class Netwo...
- Q2. Given a usecase to build parking system
- Ans.
Design a parking system to manage vehicle parking efficiently and optimize space usage.
Define user roles: Admin, Driver, and Parking Attendant.
Implement features like real-time availability tracking and reservation.
Use sensors or cameras for automated entry/exit logging.
Integrate payment systems for seamless transactions.
Consider mobile app for users to find and reserve spots.
(1 Question)
- Q1. This round was about lot of conversation with technical, leadership and cultural aspect with my manager
Interview Preparation Tips
1 coding ques on trees,discussion on project,oops concept,sql query,webd related discussion
(1 Question)
- Q1. Discussion on project,difficulty faced ,how i solved,discussion based on cv
Selected
I applied via Naukri.com and was interviewed before Feb 2023. There was 1 interview round.
(1 Question)
- Q1. Communication is needed and know how the chat process or call process works
Interview Preparation Tips
- Communication Skills
I applied via Company Website and was interviewed in Aug 2022. There were 2 interview rounds.
(3 Questions)
- Q1. What did you work for and in which company did you work?
- Q2. And how much do you need salary and which course did you do?
- Ans. Why are you working in the company
- Q3. You have to accept the role of the company
Interview Preparation Tips
PayPal Interview FAQs
Some of the top questions asked at the PayPal interview for freshers -
The duration of PayPal interview process can vary, but typically it takes about less than 2 weeks to complete.
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Overall Interview Experience Rating
based on 11 interview experiences
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