11:11 Systems Senior Software Engineer Interview Questions and Answers

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. Form based JS questions. String questions in javascript
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Q2. React interview questions with some state management follow up questions.
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Q1. SQL query to join 3 tables
Ans. 
Use SQL JOIN to combine data from 3 tables based on a common key.
• Use INNER JOIN, LEFT JOIN, or RIGHT JOIN depending on the desired result

• Specify the columns to select from each table

• Use ON clause to specify the join condition
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Q2. Spring boot annotations
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Q3. Hibernate annotations
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Q4. Java 8 Streams + Lambda
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Q1. Working style: Independent contributor or Team
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Q2. Are green-field projects alright?
Ans. 
Green-field projects are great opportunities to start fresh and implement new technologies.
• Green-field projects allow for creative freedom and innovation

• They provide the opportunity to work with the latest technologies and tools

• Starting from scratch can lead to cleaner code and better architecture

• Examples: Developing a new mobile app, creating a new website from scratch
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Q3. Are you ok with learning new tech stacks?
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Q1. Sql question, joins , store procedure
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Q2. Mvc question, mvc frame work
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Q1. There was simple DSA question ,
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Q1. Basic core java questions
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Q2. Prior financial experience
Ans. 
Yes
• Worked as a software engineer at a financial institution for 5 years

• Developed and maintained financial software applications

• Implemented complex financial algorithms and calculations

• Collaborated with financial analysts and stakeholders to understand requirements

• Ensured compliance with financial regulations and security standards
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Q1. Core java coding questions on strings, filereader, arrays
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Q2. Questions on rest services methods and implementation
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Q1. Previous experience questions
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Q1. Puzzle , sql related questions
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