Changing the format, structure, or value of data takes place in which phase of the data pipeline? Analysis Ingestion Storage Transformation Answers Explanation & Hints: In the context of data…
What is a major challenge for storage of big data with on-premises legacy data warehouse architectures? They cannot process unstructured data. They cannot process structured data. Additional servers cannot be…
What is unstructured data? Data that does not fit into the rows and columns of traditional relational data storage systems. Data that fits into the rows and columns of traditional…
Match the respective big data term to its description. Veracity - Is the process of preventing inaccurate data from spoiling data sets. Variety - Describes a type of data that…
What is the most cost-effective way for businesses to store their big data? Onsite storage arrays Cloud storage On-premises Onsite local servers Answers Explanation & Hints: Cloud storage is generally…
Refer to the exhibit. Match the column with the data type that it contains. Introduction to Data Science Final Exam Answers 001 Shipped Boolean Revenue Floating Point Quantity Integer Order…
Which characteristic describes Boolean data? A data type that identifies either a zero (0) or a one (1). A special text data type to be used for Fill-in-blank questions. A…
What are three types of structured data? (Choose three.) Data in relational databases Spreadsheet data Newspaper articles Blogs White papers E-commerce user accounts Answers Explanation & Hints: The three types…
An online e-commerce shopping site offers money-saving promotions for different products every hour. A data analyst would like to review the sales of products two days prior in the afternoon…
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…
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…