11:11 Systems Senior Software Engineer Interview Questions and Answers

Leetcode easy level questions

Q1. Eliminate subsequent repetitions in a string
Ans. 
Remove subsequent repetitions in a string
• Iterate through the string and compare each character with the next one

• If they are the same, remove the repetition by shifting the characters to the left

• Repeat this process until all repetitions are eliminated
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Q1. Behavioral questions asked by Delivery Manager
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Q1. Behavioral round and past experience
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Q1. Design a URL shortener
Ans. 
A URL shortener is a tool that takes a long URL and generates a shorter, more manageable link.
• Generate a unique short code for each long URL

• Store the mapping between short code and long URL in a database

• Redirect users from short URL to original long URL when accessed
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Q2. Write unit test for a sevice class
Ans. 
Unit test for a service class
• Create a test class for the service class

• Mock any dependencies of the service class

• Write test methods to cover different scenarios

• Use assertions to verify the expected outcomes
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Q1. Basic to medium questions related to DotNet Core MVC, SQL Server, etc
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Q1. Completely unprofessional behavior of the interviewer. - No Introduction Direct start asking questions. - Asking too many misleading questions (First ask what you worked on, then ask did you heard about th...read more
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Q1. Go Lang related questions
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Q2. System architecture
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Q1. About the project. and asked what i did in project. how to create schema in pyspark. what is ADE. what are the difficulties i faced in project. what is spark submit command how we write sparksubmit command...read more
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Q2. No of occurrences of letter in a string.
Ans. 
Count occurrences of a letter in a string.
• Iterate through each character in the string and count occurrences of the specified letter.

• Use a hashmap to store the count of each letter.

• Handle both uppercase and lowercase letters to ensure accurate counting.
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Q1. C# question ,asp.net question
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Q2. Sql server question
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Q1. Data structure question asked
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Q1. What is dependency injection in laravel
Ans. 
Dependency injection in Laravel is a technique to manage class dependencies and improve code flexibility.
• Dependency injection allows for easier testing and maintenance of code.

• It involves passing dependencies to a class through its constructor or method parameters.

• Laravel's container class manages the dependencies and resolves them when needed.

• Example: injecting a database connection into a repository class.

• Can also us...read more
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Q2. How do you find the second largest number in a coulmn in mySQL
Ans. 
To find the second largest number in a column in MySQL, you can use the ORDER BY and LIMIT clauses.
• Write a SELECT statement to retrieve the column values in descending order using ORDER BY.

• Use the LIMIT clause to limit the result set to the second row.

• The value in the second row will be the second largest number in the column.
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Q1. What do you know about magic Edtech
Ans. 
Magic Edtech is an innovative educational technology company.
• Magic Edtech develops interactive learning platforms and tools.

• They use advanced technologies like AI, AR, and VR to enhance the learning experience.

• Their products include virtual classrooms, adaptive learning systems, and educational games.

• Magic Edtech focuses on personalized learning and data-driven insights.

• They collaborate with schools, universities, and
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Q2. What was the most challenging task you faced and how you overcame it
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