Chopra Autotech Quality Engineer Interview Questions and Answers

Q1. Opps concept with MVC architecture
Ans. 
OOP concepts enhance MVC architecture by promoting modularity, reusability, and separation of concerns in software development.
• Encapsulation: MVC encapsulates data and behavior, e.g., a Model class that manages user data.

• Inheritance: Controllers can inherit common functionality from a base controller, reducing code duplication.

• Polymorphism: Different Models can implement the same interface, allowing for flexible data h...read more
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Q2. Sql server like indexes join
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Q3. Your previous Project role
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In my previous project, I served as a full-stack developer, focusing on both front-end and back-end development to enhance user experience.
• Led a team of 5 developers to create a responsive web application using React and Node.js.

• Implemented RESTful APIs to facilitate seamless communication between the front-end and back-end.

• Optimized application performance, reducing load times by 30% through code refactoring and effic...read more
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Q4. Your previous company background
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I worked at XYZ Corp, focusing on full-stack development and enhancing user experience through innovative software solutions.
• Developed a web application using React and Node.js, improving load times by 30%.

• Collaborated with cross-functional teams to implement Agile methodologies, resulting in a 20% increase in project delivery speed.

• Led a team of 5 developers in creating a mobile app that won the 'Best Innovation' awar
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Q1. Tell me about you
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Q2. Basically every question asked is related to you given project
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I waa given telecom market in indua

Q1. Installation and upgradation steps
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Q2. Patching and performance tuning
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Q1. Table space is full what action need to take
Ans. 
Free up space by deleting unnecessary data or increasing table space size.
• Identify which table space is full

• Check if there are any unnecessary data that can be deleted

• Increase the size of the table space if necessary

• Consider partitioning the table to distribute data across multiple table spaces
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Q2. Datafile addition to tablespace
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Adding a datafile to a tablespace
• Use ALTER TABLESPACE statement to add datafile

• Ensure enough disk space is available

• Monitor tablespace usage regularly

• Example: ALTER TABLESPACE users ADD DATAFILE '/u01/app/oracle/oradata/db1/users02.dbf' SIZE 50M;
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Q3. How to add datafile to tablespace
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To add a datafile to a tablespace:
• Identify the tablespace where the datafile needs to be added

• Create a new datafile using the 'CREATE DATAFILE' command

• Add the new datafile to the tablespace using the 'ALTER TABLESPACE' command

• Ensure that the new datafile is of the correct size and location
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Q1. Tableau difference between blend &join
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Blend combines data from different data sources in a single view, while join combines data from the same data source.
• Blend is used when data comes from different data sources, join is used when data comes from the same data source

• Blend creates a relationship between data sources without actually merging the data, join merges the data based on a common field

• Blend can be used to combine data from different databases like...read more
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Q1. SQL-related questions working of self join and what will be used in case of 2nd max
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Q1. Basic details as to why looking for a change
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Q1. Intermediate questions for tableau, SQL
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Q1. Managerial interview
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Q1. Salary negotiation
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Q1. Tell me about tableau architecture
Ans. 
Tableau architecture is a visual analytics platform that helps users to understand data through interactive visualizations.
• Tableau consists of three main components: Data Connection, Data Engine, and VizQL Server.

• Data Connection allows users to connect to various data sources such as databases, spreadsheets, and cloud services.

• Data Engine processes and optimizes data queries for faster performance.

• VizQL Server translat...read more
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Q1. Regarding salary
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Q1. About tableau scenario
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Q2. Top 10 emp and bottom 10as per rank
Ans. 
The top 10 and bottom 10 employees based on their rank need to be identified.
• Sort the employees based on their rank in ascending order.

• Select the top 10 employees from the sorted list.

• Select the bottom 10 employees from the sorted list.
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Q3. High light avg line
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Moderate level, maths reasoning questions