IBM Abinitio Developer Interview Questions and Answers for Experienced

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 is jdk, string related questions, basic java oops questions?
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Q1. What are indexes in the database? what is the difference between clustered and non-clustered indexes?
Ans. 
Indexes are used to improve database performance. Clustered indexes determine the physical order of data, while non-clustered indexes do not.
• Indexes are used to speed up data retrieval operations in a database.

• Clustered indexes determine the physical order of data in a table, while non-clustered indexes do not.

• A table can have only one clustered index, but multiple non-clustered indexes.

• Clustered indexes are generally ...read more
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Q2. Write a query to delete duplicate rows from a table.
Ans. 
Query to delete duplicate rows from a table
• Use GROUP BY clause to group the rows by their unique values

• Use HAVING clause to filter out the groups with count greater than 1

• Use DELETE statement to delete the duplicate rows
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Q3. Class A { public string A() { return "hello"; } } what is wrong with above code?
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Q4. What is a singleton pattern and how to implement it?
Ans. 
Singleton pattern restricts the instantiation of a class to a single instance and provides a global point of access to it.
• Create a private constructor to restrict instantiation of the class

• Create a private static instance of the class

• Create a public static method to access the instance

• Ensure thread safety if necessary

• Examples: Database connection, Logger, Configuration settings
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Q5. How do you handle exceptions in stored procedures?
Ans. 
Handle exceptions in stored procedures by using TRY-CATCH blocks.
• Use TRY-CATCH blocks to catch and handle exceptions

• Log the error message and severity level

• Rollback the transaction if necessary

• Rethrow the error if it cannot be handled

• Use RAISERROR to raise custom error messages
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Q6. Explain SOLID principles.
Ans. 
SOLID principles are a set of five design principles that help in creating maintainable and scalable software.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open-Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Subtypes should be substitutable for their base types.

• I - Interface Segregation Principle: C...read more
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Q7. Difference between throw and throw exception?
Ans. 
throw is used to throw an exception while throw exception is used to throw a specific exception.
• throw is used to throw any type of exception while throw exception is used to throw a specific type of exception.

• throw exception is followed by the type of exception that needs to be thrown.

• throw can be used to throw any object while throw exception can only be used to throw an exception object.

• Example: throw new Exception("
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Corona how you survive

Q1. Tell me about your Self intro
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Q2. Minimum knowledge on service now.
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Q1. Salary and joining date
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Q1. Hashmap, linkedlist, arraylist, collection interface
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Q2. Small coding questions on collection interface
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Q1. Managerial round, questions were on certain scenarios like production issues and how to handle them
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Q1. Relocation, salary discussion
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C and c++ and data structure

Q1. Question front Data structure, c++ and c
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Q1. Ask all those questions that you want
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Q1. What is Linux Boot Process ?
Ans. 
Linux Boot Process is the sequence of events that occur from power on to the login prompt.
• BIOS/UEFI firmware initializes hardware

• Bootloader loads kernel into memory

• Kernel initializes system processes and mounts filesystems

• Init process starts system services and user login

• Graphical user interface (GUI) or command line interface (CLI) is presented to user
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Q2. What is NIC Teaming ?
Ans. 
NIC teaming is the process of combining multiple network interface controllers to work as a single virtual NIC.
• NIC teaming provides redundancy and load balancing for network traffic.

• It can be configured in different modes such as switch independent, LACP, and static.

• NIC teaming is commonly used in server environments to improve network performance and availability.

• Example: Combining two 1 Gbps NICs to create a 2 Gbps v...read more
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