PaySafe India Senior Sdet Engineer Interview Questions and Answers

Dsa Question based on Arrays, graph and strings

Q1. Pattern printing question. Start pattern
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Q1. Basic questions on resume api testing and around test models
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Q1. Test cases identification, planning and UAT/system test examples
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Had questions on graph

Q1. Binary Search leftmost rightmost
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Q1. Monotonic stack question
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Q1. System design round, discussed subscriber publisher design pattern
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Q1. How will you integrate selenium framework with jenkins
Ans. 
Integrating Selenium framework with Jenkins involves setting up Jenkins job to run Selenium tests.
• Install Jenkins on the server

• Install necessary plugins like Selenium plugin

• Create a Jenkins job for running Selenium tests

• Configure the job to execute Selenium tests using the Selenium framework

• Set up build triggers and post-build actions as needed
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Q1. Tell me about yourself?
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Q2. Salary expectations?
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Q1. Based on resume questions.
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Q2. Difference between xpath and css selectors
Ans. 
XPath is a language for selecting nodes in an XML document, while CSS selectors are used to select HTML elements.
• XPath is more powerful and flexible than CSS selectors

• CSS selectors are faster and easier to write than XPath

• XPath can traverse both upwards and downwards in the document tree, while CSS selectors can only traverse downwards

• XPath can select elements based on their attributes, text content, and more, while CS...read more
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Two questions on array sort the given array and find how many times a element occur

Online Test having questions of SQL , Aptitude, Finance , Reasoning

Q1. Basic Testing Concept , SQL
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Round duration - 90 minutes
Round difficulty - Easy

There will be 2 coding questions easy to medium based on DP and linkedlist.

Q1. 
Count Ways To Reach The N-th Stair Problem Statement
You are given a number of stairs, N. Starting at the 0th stair, you need to reach the Nth stair. Each time you can either climb one step or two steps. ...read more
Ans. 
applied DP and solved the problem. you can find the issue on gfg or coding ninjas materials.
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Round duration - 60 minutes
Round difficulty - Easy

the questions will be be based on trees, linked list and stacks and queues, DP

Q1. 
Left View of a Binary Tree
Given a binary tree, your task is to print the left view of the tree. The left view of a binary tree contains the nodes visible when the tree is viewed from the left side.
Inpu...read more
Ans. 
i applied the brute force method.
Interviewer asked me to optimise the code without recursion.
i applied stack to solve the code.
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Q2. 
Next Greater Element Problem Statement
You are given an array arr of length N. For each element in the array, find the next greater element (NGE) that appears to the right. If there is no such greater ele...read more
Ans. 
I again solved using brute force method.
inteviewer asked me another approach.
so i solved is using the stack.
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Round duration - 60 minutes
Round difficulty - Medium

(DSA, work experience and personal projects)

Q1. 
Problem: Sort an Array of 0s, 1s, and 2s
Given an array/list ARR consisting of integers where each element is either 0, 1, or 2, your task is to sort this array in increasing order.
Input:
The input sta...read more
Ans. 
The question was based on sorting. dont give much time as they are going to ask further based on your resume and project. question is just to check the comfort.
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Round duration - 60 minutes
Round difficulty - Medium

It started in the afternoon after the lunch.

Q1. You will be given certain conditions for which you need to design a system. Can you explain your approach to low-level system design?
Ans. 
The interviewer will closely observe your approach and will add the conditions as per the requirements if any changes required. you have to design system specifically and keep on asking questions to interviewer. Once design complete the interviewer will discuss the corner cases.
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Round duration - 25 minutes
Round difficulty - Easy

Once all the rounds were cleared. I was told that i have 1 more round with manager.

Q1. How do you handle critical situations in a workplace?
Ans. 
The manager asked that are the critical situations i have faced and how i have reacted. He also checked my resume and the projects that i have made. He checked the links that i have mentioned on my resume.
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