Read this free guide below with common Informatica Developer interview questions
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Informatica is a popular tool used in ETL (Extract, Transform, Load) processes. If you are preparing for an Informatica developer interview, these questions and answers will help you prepare for the interview.
Informatica is a data integration tool used in ETL processes. It allows data to be extracted from various sources, transformed and loaded into a target system.
A repository is a database that stores metadata about the mappings, sessions, workflows, and other Informatica objects. It is the central location where all objects are stored.
A mapping is a set of rules that defines how data is transformed in Informatica. It consists of source and target definitions, transformation rules, and data flow.
A session is a group of mappings that are executed together as a unit of work. It allows multiple mappings to be executed in a specific order.
A workflow is a set of sessions that are executed as a unit of work. It allows multiple sessions to be executed in a specific order.
A transformation is a rule that is applied to a set of data to transform it from one form to another. There are different types of transformations in Informatica.
A connected transformation receives input data from other transformations in a mapping. An unconnected transformation does not receive input data from other transformations and is called using an expression in another transformation.
A lookup transformation is used to look up data from a source or target table based on a key value. It is used to update or insert data.
A router transformation is used to route data to different output ports based on a set of conditions. It is used to transform data based on business rules.
A sorter transformation is used to sort data based on one or more columns. It is used to order data in a specific way.
A filter transformation is used to filter data based on a condition. It is used to create a subset of data.
A dynamic lookup cache is a cache that is created at runtime and is used to store data from a lookup table. It is used when the lookup table is too large to fit in memory.
A workflow monitor is used to monitor the progress of a workflow. It provides information about the status of each task in the workflow.
A session is a group of mappings that are executed together as a unit of work. A workflow is a set of sessions that are executed as a unit of work.
A stored procedure is a set of SQL statements that are executed to perform a specific task. An unconnected stored procedure is called from a mapping or another transformation and does not return any data.
A mapplet is a reusable transformation that is used to transform data in a mapping. It allows the same transformation to be used in multiple mappings.
An aggregator transformation is used to perform aggregate functions such as sum, average, and count on groups of data. It is used to summarize data.
These are some of the common questions asked in an Informatica developer interview. These questions will help you prepare for the interview and increase your chances of getting hired.
If you are preparing for an Informatica Developer Interview, there are a few things you should keep in mind to increase your chances of success. Below are some tips to help you get started:
It is important to research the company you are interviewing with and read through the job description to get a clear understanding of their expectations for the role. Take note of the specific technical skills and experience required.
Make sure you have a good understanding of key Informatica concepts and tools, including ETL, data warehousing, mapping designer, source and target definitions, and workflows. Practice implementing these tools and concepts in real-world scenarios.
Be prepared to answer behavioral questions that may come up during the interview process. These questions aim to assess your work ethic, problem-solving abilities, and approach to team collaboration. Practice answering these questions with a friend or mentor.
Whiteboarding is a common practice in technical interviews. It involves walking the interviewer through the steps you would take to solve a specific problem or scenario. Practice whiteboarding different scenarios you might encounter in an Informatica Developer Interview.
Take the time to prepare a list of questions to ask the interviewer. This shows initiative and interest in the role. Use your research on the company and job description to develop meaningful questions that will allow you to get a better understanding of the company and the role it offers.
Ensure that you dress professionally for the interview and arrive on time, preferably 10-15 minutes early. This will allow you to get your bearings and mentally prepare for the interview.
By following these tips, you will be well-prepared to tackle an Informatica Developer Interview and confidently showcase your skills and experience.
How you present yourself can influence the interviewer's first impression of you. Dress appropriately for the company's culture. When in doubt, it's better to be slightly overdressed than underdressed.
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