TCS Abinitio Developer Interview Questions and Answers

Q1. Tell about previous projects.
Ans. 
I have worked on various projects involving data integration, ETL processes, and data warehousing using Abinitio.
• Developed ETL processes to extract, transform, and load data from multiple sources into a data warehouse.

• Implemented complex data transformations and business logic using Abinitio graphs and components.

• Worked on performance tuning and optimization of Abinitio graphs to improve processing times.

• Collaborated w...read more
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Q2. Have you worked on procedures?
Ans. 
Yes, I have worked on procedures in Abinitio development.
• I have experience creating and implementing procedures in Abinitio to automate data processing tasks.

• I have written complex procedures using Abinitio's graphical interface or scripting language.

• I have optimized procedures for performance and efficiency.

• I have debugged and troubleshooted procedures to ensure they function correctly.

• I have documented procedures for
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Q1. Ab initio scenario, SQL ,Unix
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Q1. What is difference between output index and output indexes in component, Reformat?
Ans. 
Output index is a single index while output indexes is an array of indexes in Reformat component.
• Output index refers to a single output field in Reformat component.

• Output indexes refer to multiple output fields in Reformat component.

• Output index is specified using a single integer value.

• Output indexes are specified using an array of integer values.
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Q2. How to convert a column into a row?
Ans. 
Use UNPIVOT operator in SQL to convert a column into a row.
• Use UNPIVOT operator in SQL to convert a column into a row

• Syntax: SELECT * FROM (SELECT [column_name] FROM [table_name]) AS [alias_name] UNPIVOT ([new_column_name] FOR [old_column_name] IN ([column_name])) AS [alias_name]

• Example: SELECT * FROM (SELECT col1, col2, col3 FROM table1) AS t UNPIVOT (val FOR col IN (col1, col2, col3)) AS u

• Transpose function in Excel
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Q3. Difference between partitioning and bucketing in SQL?
Ans. 
Partitioning divides a table into smaller parts while bucketing groups data based on a hash function.
• Partitioning is used to improve query performance by reducing the amount of data that needs to be scanned.

• Bucketing is used to evenly distribute data across nodes in a cluster.

• Partitioning is done based on a column or set of columns, while bucketing is done based on a hash function.

• Partitioning is commonly used in datab...read more
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Q1. What are your salary expectations?
Ans. 
I would like to discuss my salary expectations in person during the negotiation phase.
• Express willingness to discuss salary expectations during negotiation phase

• Avoid giving a specific number without understanding the full scope of the role and responsibilities

• Highlight the importance of considering factors such as experience, skills, and market value
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Q2. Share details of your previous job.
Ans. 
I worked as an Abinitio Developer in my previous job.
• Developed and maintained Abinitio graphs for data integration and transformation.

• Collaborated with cross-functional teams to gather requirements and design solutions.

• Optimized performance of Abinitio graphs by tuning parameters and implementing best practices.

• Troubleshot and resolved issues related to data processing and ETL workflows.

• Participated in code reviews and...read more
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Q3. Tell me about yourself.
Ans. 
I am an experienced Abinitio Developer with a strong background in data integration and ETL processes.
• I have been working in the field of Abinitio development for the past 5 years.

• I have expertise in designing and implementing complex data integration solutions using Abinitio.

• I am proficient in various Abinitio components such as GDE, Co>Operating System, and EME.

• I have experience in working with different databases an...read more
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Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
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Q2. What is the difference between useMemo and useCallback in React?
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Q3. What is the difference between class-based components and functional components in React?
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Q4. How can you implement the lifecycle of a React component in a functional component?
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Q5. What are the various state management techniques available in React?
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Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
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Q7. What is hoisting in JavaScript?
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Q8. What is event bubbling in JavaScript?
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Q9. What are block scope and function scope in JavaScript?
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Q10. Have you had experience working with semantic tags in HTML?
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Q11. What are the various methods for creating an object in JavaScript?
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Q12. What are the differences between shallow copy and deep copy in JavaScript?
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Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
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Q14. How can you use CSS to arrange elements in a row and column layout?
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Q15. Have you utilized CSS preprocessors, and if so, which ones?
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Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?
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Its very easy
Basic maths questions learned up to 10
Basic Apptitude questions

Q1. Tell me about your self Hi My name is Vikram Adithya I am an hard working and passionate engineering student currently perceiveing in gokaraju rangaraju institute of engineering and technology .I stay with...read more
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Q2. Intervier asked about what kind of problems did you solved in leetcode? I said palindrome factorial matrix multiplication etc . Intervier said every one can solve this
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Q3. He asked me about my project role i said I have done documentation in my project he said every one can do that
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Q4. He asked me to write project code
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Q5. He asked me any questions
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Q1. 1) OOPS in java, and told to explain abstraction, encapsulation, inheritance with practical code 2) Exception handling(globally), Authentication and authorization 3) SOLID principles and factory design pat...read more
Ans. 
Interview questions for Software Engineer position covering OOPS concepts, exception handling, SOLID principles, Java 8 features, and Streams.
• Abstraction in OOPS: Hiding implementation details. Example: Abstract class Shape with method draw().

• Encapsulation in OOPS: Bundling data and methods that operate on the data. Example: Class Employee with private fields and public getters/setters.

• Inheritance in OOPS: Reusing code...read more
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Q2. 1) Advantage of springboot over spring 2) Tell me all the anotations you know in spring 3) What are CRUD operations, write controller layer and use validating annotations like @NotNull, @valid etc. how to ...read more
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The interview questions cover various topics related to Spring framework, REST vs SOAP, JPA repository, Feign client, circuit breaker, and Spring Security.
• Spring Boot provides a simpler and faster way to set up and run Spring applications compared to traditional Spring.

• Common annotations in Spring include @Controller, @Service, @Repository, @Autowired, @Component, @RequestMapping, @GetMapping, @PostMapping, @PutMapping...read more
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Q3. 1) ACID properties 2) DBMS commands 3) inner queries 4) Joins 5) S3 bucket congif and how to handle file and upload and retrieve in s3 6) Ci/Cd basic flow and docker explaination
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Q1. Azure cloud platform tech
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Q2. Informatica tech stack ques
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Q1. Adf tech stack que
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Q2. Scd type 2 implementation
Ans. 
SCD Type 2 implementation involves tracking historical changes in data by creating new records for each change.
• Identify the columns that need to be tracked for changes

• Add effective start and end dates to track the validity of each record

• Insert new records for changes and update end dates for previous records

• Maintain a surrogate key to uniquely identify each version of the record
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Q1. Dw related que ans
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Q2. Solution design related que
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Q1. Aspiration from my end
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Q2. How soon can join
Ans. 
I can join the team within 2 weeks.
• I can start within 2 weeks of receiving the offer.

• I need to give notice to my current employer.

• I may need to relocate, which could affect my start date.
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