Informatica اسئلة واجوبة المقابلات
سؤال 1. What is Informatica PowerCenter?
Informatica PowerCenter is an ETL (Extract, Transform, Load) tool used for data integration and warehousing.
سؤال 2. Explain the difference between ETL and ELT.
ETL (Extract, Transform, Load) is a process where data is extracted from source systems, transformed, and then loaded into a data warehouse. ELT (Extract, Load, Transform) is a process where data is first extracted and loaded into the target system, and then transformations are applied.
سؤال 3. What is a Session in Informatica?
A session in Informatica is a task that represents the execution of a workflow. It is the smallest unit of work in a workflow.
سؤال 4. Explain the difference between a Mapping and a Mapplet.
A mapping is a set of source and target definitions linked by transformations, while a mapplet is a reusable object that contains a set of transformations.
سؤال 5. What is a Repository in Informatica?
A repository in Informatica is a relational database that stores metadata and configuration information about the various objects managed by Informatica.
الاكثر فائدة حسب تقييم المستخدمين:
- What is Informatica PowerCenter?
- What is a Repository Service in Informatica?
- Explain the concept of a Source Filter in Informatica.
- What is a Lookup Override in Informatica?
- What is a Session in Informatica?