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Optum Global Solutions
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Import vs direct query
Importing data involves transferring data from a source to a destination, while direct query involves querying data directly from the source.
Importing data can be useful for offline analysis or data transformation, while direct query is more suitable for real-time analysis.
Importing data may require additional storage space, while direct query does not necessarily require storage.
Importing data ca...
Power BI and Tableau are both powerful data visualization tools, but they have some key differences.
Power BI is more user-friendly and integrates well with Microsoft products.
Tableau is known for its advanced analytics capabilities and flexibility in data visualization.
Power BI is often preferred by organizations already using Microsoft products, while Tableau is popular among data analysts and data scientists.
Tableau ...
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posted on 4 Sep 2023
I applied via LinkedIn and was interviewed in Aug 2023. There were 3 interview rounds.
Creating data pipelines, processing requests, web crawling, scraping, and reading large CSV files in Python.
Use tools like Apache Airflow or Luigi to create data pipelines
Implement distributed computing frameworks like Apache Spark for processing millions of requests
Utilize libraries like Scrapy or Beautiful Soup for web crawling and scraping
Use pandas library in Python to efficiently read and process large CSV files
The Scrum role involves daily activities in development and implementing an automation framework.
As a Data Engineering Specialist, the Scrum role involves participating in daily stand-up meetings to discuss progress and obstacles.
Daily activities may include coding, testing, debugging, and collaborating with team members to deliver high-quality software.
Implementing an automation framework involves creating scripts or ...
I applied via Campus Placement
It was communication assesment round.It had good set of questions
I applied via Campus Placement and was interviewed in Feb 2023. There were 3 interview rounds.
Verbal.coding. c programing. Reasoning. Logical questions. Phargraf. Sa
posted on 27 Feb 2024
I applied via Company Website and was interviewed in Jan 2024. There was 1 interview round.
To automate REST API calls using ROBOT Framework.
posted on 10 Jun 2024
I applied via Referral and was interviewed before Jun 2023. There were 3 interview rounds.
posted on 31 Dec 2022
I applied via Recruitment Consulltant and was interviewed in Jul 2022. There were 4 interview rounds.
Coding questions will be in data structures and algorithms. Mostly from binary tree, linked list, and tree map. Interviewer will ask depth about space and time complexity
I applied via Referral and was interviewed in Jun 2021. There were 3 interview rounds.
Exploratory testing is a type of testing where the tester designs and executes tests simultaneously.
It is an unscripted testing approach
Testers use their domain knowledge and experience to identify defects
It is useful in finding defects that are difficult to identify through scripted testing
It is often used in Agile development environments
Example: A tester explores a new feature of an application and tries to identify
Load testing checks system performance under normal and peak loads. Stress testing checks system performance beyond peak loads.
Load testing checks system performance under normal and peak loads
Stress testing checks system performance beyond peak loads
Load testing is done to ensure the system can handle expected traffic
Stress testing is done to identify the breaking point of the system
Examples of load testing tools: JMe...
posted on 19 Feb 2023
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