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Innova Solutions ETL Developer Interview Questions and Answers
Innova Solutions ETL Developer Interview Experiences
1 interview found
Anonymous
I applied via Job Portal and was interviewed in Sep 2024. There was 1 interview round.
(2 Questions)
- Q1. Transformations
- Q2. Project related questions
Top trending discussions
Interview questions from similar companies
(1 Question)
- Q1. Greatest challenge faced while migrating to cloud from onpremise DB
- Ans.
The greatest challenge faced during migration to cloud from on-premise DB is ensuring data security and compliance.
Ensuring data security during transit and at rest
Maintaining compliance with regulations and industry standards
Minimizing downtime and ensuring data integrity
Optimizing performance and cost efficiency in the cloud environment
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before Jan 2022. There were 4 interview rounds.
It's an assignment for apti, verbal
(1 Question)
- Q1. It's like an what are u mentioned in resume skills.
(1 Question)
- Q1. Just like interaction with candidate like personal details.
Interview Preparation Tips
Vikash Kumar
Selected
I applied via Campus Placement and was interviewed before Oct 2023. There was 1 interview round.
(2 Questions)
- Q1. Lookup transformation
- Q2. Joiner transformation
Selected
I applied via Campus Placement and was interviewed before Aug 2022. There were 3 interview rounds.
2 coding questions, 1 hr and Aptitude questions are also clubbed into other section.
(3 Questions)
- Q1. Are flexible with location
- Ans. Yes, I am flexible with location
- Q2. Are you ok if we give you testing project
- Ans.
Yes, I am open to taking on a testing project as part of my role as an ETL Developer.
I have experience with testing tools and methodologies in my previous roles.
I understand the importance of testing in ensuring data accuracy and quality.
Taking on a testing project will help me improve my skills and knowledge in ETL development.
- Q3. Are you flexible with working hours
Interview Preparation Tips
I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.
(1 Question)
- Q1. Which version of talend you are using
- Ans.
I am using Talend version 7.3.1 for ETL development.
I am currently using Talend version 7.3.1 for ETL development.
The specific version of Talend being used is 7.3.1.
Talend 7.3.1 offers various features and improvements for ETL processes.
Skills evaluated in this interview
Interview Questionnaire
4 Questions
- Q1. Whats is mapping
- Ans.
Mapping is the process of defining the relationship between source and target data in ETL.
Mapping involves identifying the source and target data structures.
It also involves defining the transformation rules to be applied to the source data.
Mappings can be simple or complex depending on the complexity of the data.
Mapping is a critical step in ETL as it determines the accuracy and completeness of the data in the target
- Q2. What is sesson
- Ans.
Session refers to a period of time during which a user interacts with a computer system or application.
A session is created when a user logs into a system or application.
It is used to track user activity and maintain user-specific data.
Sessions can be terminated manually or automatically after a certain period of inactivity.
Session management is important for security purposes.
Examples of session management techniques
- Q3. Which role u did
- Q4. Oracle sqi pl sqi
(2 Questions)
- Q1. Self introduction
- Q2. Scenario based questions
Interview Preparation Tips
(1 Question)
- Q1. Performance tuning of ssis packages
- Ans.
Performance tuning of SSIS packages involves optimizing data flow, memory usage, and parallelism.
Optimize data flow by using efficient data sources and destinations
Minimize memory usage by using appropriate buffer sizes and reducing unnecessary data transformations
Increase parallelism by using multiple threads and optimizing task execution order
Use performance monitoring tools like SSIS logging and performance counters...
(1 Question)
- Q1. Basics,ETL Process and performance tuning
(1 Question)
- Q1. Past experience
Skills evaluated in this interview
(2 Questions)
- Q1. Informatica powercenter architecture, scd1, scd2 etc
- Q2. Lookups and where to use them
- Ans.
Lookups are used to retrieve related data from another table based on a common key.
Lookups are used in ETL processes to enrich data by adding additional information from a reference table.
They are commonly used to replace codes with corresponding descriptions, such as replacing product IDs with product names.
Lookups can be performed using SQL joins or lookup transformations in ETL tools like Informatica or Talend.
Skills evaluated in this interview
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