Trackier Interview Questions and Answers

I have over 5 years of experience in product analysis, with a focus on market research and data interpretation.

• 5+ years of experience in product analysis

• Strong background in market research

• Skilled in data interpretation

• Experience with product development and launch strategies

To identify root causes and propose solutions for lack of premium subscription renewals after free trial on Spotify.

• Conduct customer surveys to gather feedback on their experience with the premium subscription and reasons for not renewing.

• Analyze user data to identify patterns or trends in user behavior before and after the trial period.

• Compare Spotify's premium subscription offering with competitors to understand pote...read more

Room library is a persistence library that provides an abstraction layer over SQLite to allow for more robust database access while leveraging the full power of SQLite.

• Room library simplifies database interactions by providing compile-time verification of SQL queries.

• It includes components like Entity, DAO (Data Access Object), and Database to define database schema and access data.

• Room library also supports LiveData a...read more

Scaling an application involves optimizing performance, increasing capacity, and ensuring reliability.

• Use load balancing to distribute traffic evenly across servers.

• Implement caching to reduce database load and improve response times.

• Optimize database queries and indexes for faster data retrieval.

• Use horizontal scaling by adding more servers to handle increased traffic.

• Monitor performance metrics and scale resources ac...read more

There are three main architecture patterns in Android: Model-View-Controller (MVC), Model-View-Presenter (MVP), and Model-View-ViewModel (MVVM).

• Model-View-Controller (MVC) separates the application into three main components: the model (data), the view (UI), and the controller (logic).

• Model-View-Presenter (MVP) separates the application into three main components: the model (data), the view (UI), and the presenter (han...read more

Coroutines are lightweight threads that can be suspended and resumed, allowing for asynchronous programming in Kotlin.

• Coroutines are defined using the 'suspend' keyword in Kotlin.

• They can be launched using 'launch' or 'async' functions from the kotlinx.coroutines library.

• Coroutines can suspend execution using 'delay' or other suspension points.

• They can communicate with each other using channels or other forms of struct

Maven Central and JCenter are popular repositories for managing dependencies in Gradle build scripts.

• Maven Central is the default repository for Apache Maven, containing a vast number of open-source libraries and artifacts.

• JCenter is a curated repository maintained by Bintray, providing a wide range of popular libraries and artifacts.

• Using these repositories in Gradle build scripts simplifies dependency management and