MOTROLA SOLUTIONS is  hiring Freshers for the role of  DATA ENGINEER. The details of the job, requirements and other information given below:

MOTROLA SOLUTIONS IS HIRING : DATA ENGINEER

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interview questions and answers for the Data Engineer role at Motorola Solutions

1. Can you explain what ETL is and why it’s important in data engineering?

Answer:
ETL stands for Extract, Transform, and Load. It is a process used in data engineering to move data from different sources into one system (like a database or a cloud platform) where it can be stored and analyzed.

2. What is PySpark and how is it useful?

Answer:
PySpark is the Python version of Apache Spark, a powerful tool used for handling large-scale data. It lets you write Spark programs using Python.
It is useful because:

3. How do you use Apache Airflow in your projects?

Answer:
Apache Airflow is a tool used to schedule and manage workflows (data pipelines).
In a project, you can:

4. What are Pandas and NumPy used for in data engineering?

Answer:
Pandas and NumPy are Python libraries that help with data analysis and numerical operations.

5. What cloud platforms are you familiar with? How do you use them in ETL?

Answer:
Cloud platforms like AWS, Azure, and Google Cloud (GCP) provide tools to store, process, and analyze data.
In ETL:

6. What is multithreading and how does it help in server-side development?

Answer:
Multithreading is a way to run multiple parts of a program at the same time.
In server-side development, it helps:

7. How do you make sure your ETL pipelines are reliable and perform well?

Answer:
To make ETL pipelines reliable and efficient:

8. Can you describe your experience with GitHub and Azure DevOps?

Answer:
I use GitHub and Azure DevOps to manage code and collaborate with my team.

9. What is BigQuery and how do you write SQL queries in it?

Answer:
BigQuery is Google Cloud’s data warehouse used to analyze big datasets using SQL.
In BigQuery:

10. Why do you want to join Motorola Solutions as a Data Engineer?

Answer:
I want to join Motorola Solutions because it works on important technologies that help public safety and make the world safer.

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