HALODOC Sdet Engineer Interview Questions and Answers

Q1. Promises in Javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises help in handling asynchronous operations in a more organized manner.

• They can be in three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() method to handle success and failure cases.

• They can also be used with async/await for more readable asynchronous code.
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Q1. React fundamentals
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Q1. Why do you want to join our company
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Q2. Notice period, joining date etc
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Q1. Java coding, puzzle
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Q2. Oops concepts were asked
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Q3. How do you managed resources
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Q4. Where do yousee yourself in next 5 years
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Q1. Regex related related programming question
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Q1. Promises in Javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises help in handling asynchronous operations in a more organized manner.

• They can be in three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() method to handle success and failure cases.

• They can also be used with async/await for more readable asynchronous code.
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Q1. React fundamentals
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Q1. Why do you want to join our company
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Q2. Notice period, joining date etc
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DSA question. Leetcode easy and medium questions were asked.

Q1. Framework design related questions were asked
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Q2. Design a library for api testing
Ans. 
A library for API testing that provides a set of functions and utilities to simplify the testing process.
• The library should have functions to send HTTP requests and validate responses.

• It should support different authentication methods like OAuth, JWT, etc.

• The library should handle common API testing scenarios like testing CRUD operations, handling different HTTP methods, etc.

• It should provide utilities for data-driven ...read more
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Q3. Types of load balancing
Ans. 
Load balancing is a technique used to distribute network traffic across multiple servers to ensure optimal performance and availability.
• Types of load balancing include: round robin, least connections, IP hash, and weighted round robin.

• Round robin distributes traffic evenly across servers in a sequential manner.

• Least connections directs traffic to the server with the fewest active connections.

• IP hash uses the client's I...read more
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Easy to medium questions

Q1. Project related questions
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Q2. Basic knowledge on relevant courses
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