ThoughtSpot Senior Software Developer Interview Questions and Answers

Q1. Current Project Roles and Responsibilities
Ans. 
Currently leading a team of developers in designing and implementing a new web application for a client in the finance industry.
• Leading a team of developers in designing and implementing a new web application

• Collaborating with stakeholders to gather requirements and define project scope

• Ensuring project milestones are met on time and within budget

• Conducting code reviews and providing technical guidance to team members
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Q2. Microservices and Message brokers.
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Q3. Angular Reactive Forms, RxJS, Detection cycle
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Q1. Action Filters In MVC
Ans. 
Action filters are used in ASP.NET MVC to execute code before or after an action method is called.
• Action filters can be used to perform authentication and authorization checks.

• They can also be used to modify the result of an action method.

• Examples of action filters include Authorize, OutputCache, and HandleError.

• Action filters can be applied globally, to a controller, or to an individual action method.
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Q2. What is the difference between controller and API controller
Ans. 
A controller is used for handling user requests while an API controller is used for handling API requests.
• A controller is used for rendering views while an API controller is used for returning data in JSON format.

• API controllers are usually lighter and faster than regular controllers.

• API controllers are often used for building RESTful APIs.

• Examples of API frameworks that use API controllers include Laravel and ASP.NET
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Q1. Difference between IEnumerable and IQuriable
Ans. 
IEnumerable is read-only and forward-only while IQueryable is queryable and can be used with LINQ to SQL.
• IEnumerable is used for in-memory collections while IQueryable is used for querying external data sources.

• IQueryable allows for deferred execution while IEnumerable does not.

• IQueryable can be used with LINQ to SQL to translate queries into SQL statements.

• IEnumerable is simpler and more lightweight than IQueryable.

• IE...read more
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Q2. What is the use of Yield Key word
Ans. 
Yield keyword is used in Python to create generators that can be used to iterate over large datasets without loading them into memory.
• Yield is used to pause and resume a function's execution.

• Generators created using yield are memory efficient as they only load data when needed.

• Yield can be used to implement lazy evaluation.

• Yield can be used to create infinite sequences.

• Example: def my_generator(): yield 1; yield 2; yie...read more
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Basic DSA questions, best time to buy and sell stock and its variation

Q1. Basic nosql vs sql questions
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Q2. Designing system for google playstore
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2 Leetcode Medium questions on hackerrank

Q1. Kadane algorithm based question
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Q2. Leetcode medium
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Q3. Resume based questions
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Q1. Probability question math problem
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Q2. Puzzle to solve
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Q3. AI based question
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Q4. 1 question to solve Leetcode medium
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It was a Basic Aptitude Test

We were asked to do Sorting, SQL queries (join)

Q1. Can you tell me about yourself?
Ans. 
I am a passionate software engineer with 5 years of experience in developing web applications using various technologies.
• 5 years of experience in software development

• Proficient in developing web applications

• Skilled in using various technologies such as Java, JavaScript, and SQL
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Medium to hard questions based on arrays, dp

Q1. Quick sort algorithm
Ans. 
Quick sort is a popular sorting algorithm that uses divide and conquer strategy.
• Divides array into smaller sub-arrays based on a pivot element

• Recursively sorts sub-arrays

• Combines sorted sub-arrays to get final sorted array

• Time complexity: O(n log n) on average, O(n^2) worst case

• Example: [3, 6, 8, 10, 1, 2, 1] -> [1, 1, 2, 3, 6, 8, 10]
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Q2. Modified rotate a matrix
Ans. 
Rotate a matrix by 90 degrees in place
• Transpose the matrix

• Reverse each row of the transposed matrix
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Q1. To print all permutation of a string
Ans. 
Use recursion to generate all possible permutations of a given string.
• Use recursion to swap characters in the string to generate permutations

• Keep track of visited characters to avoid duplicates

• Base case: when the length of the string is 1, add it to the result array
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Q1. Coin change Problem of finding number of ways to achieve K value
Ans. 
The coin change problem involves finding the number of ways to make a certain value using a given set of coins.
• Use dynamic programming to solve the coin change problem efficiently.

• Create a 1D array to store the number of ways to make each value from 0 to the target value.

• Iterate through the coins and update the array based on the current coin's value.

• The final answer will be stored in the last element of the array.

• Exam...read more
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Q1. Suduko solver question is given to me
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2 questions, Easy and medium based

Q1. Stacks queues and array questions
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Q1. Technical questions on projects
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Q1. How to tackle any uncertain situations? Behavioural questions
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