Technical Interview Questions
A question on the most used tool is something you’ll mostly find in any data analytics interview questions. The most useful tools for data analysis are: Tableau Google Fusion Tables Google Search Operators KNIME RapidMiner Solver OpenRefine NodeXL io The “best” tools for data analysis can vary depending on factors such as the specific requirements … Read more
If you are sitting for a data analyst job, this is one of the most frequently asked data analyst interview questions. Data cleansing primarily refers to the process of detecting and removing errors and inconsistencies from the data to improve data quality. The best ways to clean data are: Segregating data, according to their respective … Read more
This is the most commonly asked data analyst interview question. You must have a clear idea as to what your job entails. A data analyst is required to perform the following tasks: Collect and interpret data from multiple sources and analyze results. Filter and “clean” data gathered from multiple sources. Offer support to every aspect … Read more
This data analyst interview question tests your knowledge about the required skill set to become a data scientist. To become a data analyst, you need to: Be well-versed with programming languages (XML, Javascript, or ETL frameworks), databases (SQL, SQLite, Db2, etc.), and also have extensive knowledge on reporting packages (Business Objects). Be able to analyze, … Read more
Some of the vital Python libraries used in Data Analysis include – Bokeh Matplotlib NumPy Pandas SciKit SciPy Seaborn TensorFlow Keras There are several Python libraries commonly used in data analysis. Some of the most popular ones include: Pandas: Pandas is a powerful library for data manipulation and analysis. It provides data structures like DataFrame … Read more