AVASOFT ml engineer Interview Questions and Answers for Experienced

Q1. 2 DSA questions
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Q1. Half an hour of behavioral questions and 1 DSA question
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Q1. One hour discussion of the work that I have done till now
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Q1. 1 Hard DSA question
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Q1. 1 Hard DSA question
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Q1. Design round for HLD
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Q1. SOLID Principles
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Q1. Asked java coding and system design
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Q2. Facebook and parking lot
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Q3. Java 8 stream and lambda
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Q1. Presented me with an existing code containing the unit tests and actual code in python and asked me to debug and fix all the issues in code so that all unit test cases will pass
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Q1. Its an architecuture/desing round, interviewed asked me about the architecture of one of service i have created in my previous company then he cross questioned on the architecture. Then he asked me if I w...read more
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Q1. Its managerial round, the manager asked about my mentor skills like tell me cases where you have confilct with your mentees or lead or manager.
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Q1. Will you be able to work in Rotational Shifts?
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Q2. How much experience do you have in SQL and Node JS.
Ans. 
I have 5 years of experience in SQL and Node JS.
• I have worked extensively with SQL databases, writing complex queries and optimizing performance.

• I am proficient in using Node JS for server-side development, building RESTful APIs and handling database operations.

• I have experience in integrating SQL databases with Node JS applications using libraries like Sequelize or Knex.

• I have successfully delivered projects that invo...read more
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Q1. What is Index in SQL?
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Indexes in SQL are data structures that improve the speed of data retrieval operations on database tables.
• Indexes are created on one or more columns of a table to allow faster searching and sorting of data.

• They work similar to the index of a book, allowing the database engine to quickly locate the data.

• Indexes can be created on primary keys, foreign keys, or any other frequently searched columns.

• They reduce the amount ...read more
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Q2. What are the different types of Normalization in DBMS?
Ans. 
Normalization is a process in DBMS that eliminates data redundancy and ensures data integrity.
• Normalization is used to organize data in a database efficiently.

• There are different normal forms, such as 1NF, 2NF, 3NF, BCNF, and 4NF.

• Each normal form has specific rules and dependencies to achieve data normalization.

• Normalization helps in reducing data duplication, improving data consistency, and simplifying database mainte...read more
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Q3. What do you know about Views in mySQL?
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Views in mySQL are virtual tables that are based on the result of a query. They can be used to simplify complex queries and provide a layer of abstraction.
• Views are created using the CREATE VIEW statement.

• They are stored in the database and can be accessed like regular tables.

• Views can be used to hide complexity by encapsulating complex queries into a single view.

• They can also be used to restrict access to certain colu...read more
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Q4. What are Stored Procedures?
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Stored Procedures are precompiled database objects that contain a set of SQL statements and can be executed with a single call.
• Stored Procedures are used to encapsulate and execute frequently used SQL statements.

• They improve performance by reducing network traffic and optimizing query execution.

• They can accept input parameters and return output values.

• Stored Procedures can be used for data manipulation, data retrieval,...read more
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Q5. Tell me something about Internet of Things.
Ans. 
Internet of Things (IoT) refers to the network of physical devices, vehicles, appliances, and other objects embedded with sensors, software, and connectivity.
• IoT enables devices to collect and exchange data over the internet.

• It allows for remote monitoring and control of devices and systems.

• IoT has applications in various industries such as healthcare, transportation, agriculture, and smart homes.

• Examples of IoT device...read more
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Q1. Questions about Past Experience, the projects I have worked on.
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Q2. What does JWT stand for? How do we use them?
Ans. 
JWT stands for JSON Web Token. It is a compact, URL-safe means of representing claims between two parties.
• JWT is used for authentication and authorization purposes in web applications.

• It consists of three parts: header, payload, and signature.

• The header contains the algorithm used to sign the token.

• The payload contains the claims or information about the user.

• The signature is used to verify the integrity of the token.

• J...read more
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Q3. What is the difference between Webtokens and APIs?
Ans. 
Webtokens and APIs are both used in web development, but they serve different purposes.
• Webtokens are used for authentication and authorization, providing a secure way to transmit user information between client and server.

• APIs (Application Programming Interfaces) are sets of rules and protocols that allow different software applications to communicate and interact with each other.

• Webtokens are often used within APIs to...read more
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Q4. What is oAuth, what method did you use for Authentication/ Authorisation is your project?
Ans. 
oAuth is an open standard for authorization. In my project, I used the oAuth 2.0 protocol for authentication and authorization.
• oAuth is a protocol that allows users to grant limited access to their resources on one website to another website without sharing their credentials.

• It provides a secure way for users to authenticate and authorize third-party applications to access their data.

• oAuth 2.0 is the most widely used v...read more
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Q5. If the data in a table is already normalized, what can we do to further optimize is?
Ans. 
Further optimization of normalized data can be achieved through indexing, denormalization, and caching.
• Create appropriate indexes on frequently queried columns to improve query performance.

• Consider denormalizing the data by combining related tables to reduce the number of joins required.

• Implement caching mechanisms to store frequently accessed data in memory for faster retrieval.

• Use materialized views or summary tables...read more
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Q6. How do you perform indexing in a database, which column you use for indexing?
Ans. 
Indexing in a database improves query performance by creating a data structure that allows for faster data retrieval.
• Indexing involves creating an index on one or more columns of a database table.

• The column used for indexing should be chosen based on the frequency of data retrieval and the cardinality of the column.

• Columns with high selectivity and frequent data retrieval are good candidates for indexing.

• Examples of co...read more
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Q1. Core concepts of .Net Core, Entity Framenwork and OOPS
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Q1. Design and implement snake game
Ans. 
Snake game involves controlling a snake to eat food and grow in size without hitting walls or itself.
• Create a grid system to represent the game board

• Implement logic for snake movement and growth

• Generate food randomly on the board for the snake to eat

• Handle collision detection for walls and snake body

• Keep track of score and game over conditions
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3 codes we have to slove 2 out of 3

Q1. Questions are shooted from resume
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Q1. Simple questions related to your experience
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