Mastree QA Engineer Interview Questions and Answers

Coding Test consist of 3 coding question, 2 sql questions and 10 output question.

Q1. Project written on CV, Java questions, Scenario based question and 2 coding question 1. palindrome and string question.
Add your answer

Q1. Panel of 5 , with company CT0, Backend Manager, Android Team Manager and 2 more people. Java question based on String, Java, Scenario based question on testing like, coffee machine, lift, Water bottle, Pa...read more
Add your answer
Q2. Geeksforgeeks puzzle question 2, Aptitude question based on Probalility.
Add your answer

Q1. With HR and QA Team Manager
Add your answer
Q2. Aptitude and puzzle question. why you want to join company, what are your strengths and weakness, hobbies. Salary Discussion
Add your answer

Q1. Difference between var, let, const.
Ans. 
var, let, and const are all used to declare variables in JavaScript, but they have different scoping rules and behaviors.
• var has function scope and can be redeclared and reassigned

• let has block scope and can be reassigned but not redeclared

• const has block scope and cannot be reassigned or redeclared

• Use const for values that won't change, let for values that will, and avoid var
Answered by AI
Add your answer
Q2. Explain CSS box model. Do padding and margin apply to inline elements?
Ans. 
CSS box model defines the layout of elements on a webpage. Padding and margin can apply to block-level elements but not to inline elements.
• CSS box model consists of content, padding, border, and margin around an element.

• Padding adds space inside the border of an element.

• Margin adds space outside the border of an element.

• Padding and margin can apply to block-level elements like <div> but not to inline elements lik
Answered by AI
Add your answer
Q3. Difference between arrow functions and regular ones.
Ans. 
Arrow functions are shorter syntax for writing function expressions.
• Arrow functions do not have their own 'this' keyword.

• Arrow functions cannot be used as constructors.

• Arrow functions do not have the 'arguments' object.

• Arrow functions are more concise and easier to read.

• Regular functions are better for methods and constructors.
Answered by AI
Add your answer
Q4. How does JavaScript asynchronous model work
Ans. 
JavaScript asynchronous model allows non-blocking code execution by using callbacks and promises.
• JavaScript uses an event loop to handle asynchronous operations.

• Callbacks are functions passed as arguments to other functions and executed when the operation is complete.

• Promises are objects that represent the eventual completion or failure of an asynchronous operation.

• Async/await is a newer syntax that allows writing asyn...read more
Answered by AI
View 1 more answer

Easy leetcode code 2 questions , HTML5 css javascript simple screen design

Q1. Oop, Simple coding javascript, react basic, sql basic
Add your answer

Q1. Tell Me About MS Office?
Add your answer

Q1. Why You Choose Physicwallah in Academic Field?
Add your answer

Round duration - 60 Minutes
Round difficulty - Easy

It was an coding round

Q1. 
The Skyline Problem
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette when viewed from a distance. Each building is ...read more
Ans. 
Compute the skyline of given rectangular buildings in a 2D city, eliminating hidden lines and forming the outer contour of the silhouette.
• Iterate through the buildings and create a list of critical points (x, y) where the height changes.

• Sort the critical points based on x-coordinate and process them to form the skyline.

• Merge consecutive horizontal segments of equal height into one to ensure no duplicates.

• Return the fin...read more
Answered by AI
Add your answer
Q2. 
Rat in a Maze Problem Statement
You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...read more
Ans. 
Find all possible paths for a rat in a maze from source to destination.
• Use backtracking to explore all possible paths in the maze.

• Keep track of visited cells to avoid revisiting them.

• Recursively try moving in all directions (up, down, left, right) until reaching the destination.

• Return a list of strings representing valid paths sorted in alphabetical order.
Answered by AI
Add your answer

Round duration - 30 Minutes
Round difficulty - Easy

It was an HR round with some general questions. it was just for formality.

Python technical SQL basic

Basic project to fetch github user details and show it.

Q1. What are promises?
Ans. 
Promises are commitments made by one party to another, ensuring that a certain action or outcome will be delivered.
• Promises involve a commitment to fulfill a specific task or obligation

• They are often made between individuals, organizations, or parties in a contract

• Breaking a promise can lead to trust issues and negative consequences

• Examples include promising to meet a deadline, keep a secret, or repay a debt
Answered by AI
Add your answer
Q2. What is the use of cors.
Ans. 
CORS (Cross-Origin Resource Sharing) is a mechanism that allows resources on a web page to be requested from another domain outside the domain from which the resource originated.
• CORS is used to enable secure cross-origin requests in web browsers.

• It allows servers to specify who can access their resources.

• CORS is implemented using HTTP headers like Access-Control-Allow-Origin.

• It helps prevent cross-site request forgery ...read more
Answered by AI
Add your answer
Q3. Output questions based on hoisting, closures and promises
Add your answer

Q1. Basic details about me and my previous job profile.
Add your answer