A sales manager in a large automobile dealership wants to determine the top four best selling models based on sales data over the past two years. Which two charts are…
Which three are skills that are typical for an entry level data analyst position? (Choose three.) Fast typing skills. Ability to work alone. Proficiency with spreadsheets. Familiarity with visualization tools.…
What is the role of a data engineer? To query and process data, provide reports, summarize and visualize data. To build and operationalize data pipelines for collecting and organizing data.…
What tool is commonly used to showcase data analytic skills to a prospective employer? Resume Word document Portfolio Excel spreadsheet Answers Explanation & Hints: A portfolio is commonly used to…
What is the role of a data scientist? To query and process data, provide reports, summarize and visualize data. To build and operationalize data pipelines for collecting and organizing data.…
What is the role of a data analyst? To query and process data, provide reports, summarize and visualize data. To build and operationalize data pipelines for collecting and organizing data.…
In training a pattern recognition system which data set measures the accuracy achieved by the model? Model data set Testing data set Sample data set Training data set Answers Explanation…
Which step in the machine learning process transforms data into a structured format by removing missing data and corrupted observations? Testing data Learning data Preparing data Model evaluation Answers Explanation…
Which method describes how a machine learns using the reinforcement machine learning model? Autonomously discovering patterns in data. Human interactions to label data read accuracy. Discovering groups of items frequently…
Which machine learning algorithm uses data sets verified by experts as its learning basis? Association Clustering Routing Supervised Answers Explanation & Hints: The machine learning algorithm that uses data sets…
When several items are grouped, which type of machine learning algorithm can determine which items in the group predict the presence of other items? Association Classification Clustering Regression Answers Explanation…
What is the correct order of the stages in the data pipeline? Ingestion, Transformation, Analysis, Storage Ingestion, Analysis, Transformation, Storage Ingestion, Storage, Transformation, Analysis Ingestion, Transformation, Storage, Analysis Answers Explanation…
What big data term includes reducing the amount of data cleaning that is required? Volume Variety Velocity Veracity Answers Explanation & Hints: The big data term that includes reducing the…
The four V’s of Big Data are volume, velocity, variety, and veracity. What is meant by variety? The volume of data in motion. The amount of data cleaning that is…
An online e-commerce shopping site collects sales data to help improve their operation and profits. Which data type would be used to record the number of products purchased by a…
A sales department is analyzing the sales trend for one of their best products. They collected quarterly sales number over the past five years and want to plot the data…
Which statement is an accurate description of discrete variables? Discrete variables are qualitative and consist of two or more categories in which order matters. They are quantitative with a continuous…
What are two examples of unstructured data? (Choose two.) Video content User account data SQL queries Blog entry Customer account spreadsheet Answers Explanation & Hints: Two examples of unstructured data…
What is an example of structured data? Data entered into spreadsheets Digital photos Content found on web pages Electronic journals Answers Explanation & Hints: An example of structured data would…
What is the only way of ensuring that deleted files on your computer are irrecoverable? Physically destroying your computer’s hard drive Using a software program such as SDelete or Secure…