ConcertAI Quality Control Reviewer Interview Questions and Answers

Data is a collection of facts, figures, or statistics that can be analyzed to gain insights and make informed decisions.

• Data can be structured or unstructured

• Data can be qualitative or quantitative

• Examples of data include customer demographics, sales figures, and website traffic

• Data can be analyzed using various tools and techniques to extract meaningful insights

Window functions like lag and lead are used to analyze data over a specific range or window.

• Lag function can be used to calculate the difference between current and previous values in a time series data.

• Lead function can be used to calculate the difference between current and future values in a time series data.

• Window functions can be used to calculate moving averages, cumulative sums, and other statistical measures.

• Fo...read more

Types of testing include functional, performance, security, usability, and compatibility testing.

• Functional testing ensures that the software meets the specified requirements.

• Performance testing checks the system's response time, scalability, and stability under various loads.

• Security testing identifies vulnerabilities and ensures that the system is secure.

• Usability testing evaluates the user-friendliness of the softwa...read more