FREE Master of Data science Big Data Questions and Answers
Which of the following focuses on the data's (previously unidentified) qualities being discovered?
The process of manually translating or mapping data from one "raw" form into another one that enables more convenient consumption of the data with the use of semi-automated technologies is known as "data munging" or "data wrangling."
Which of the following languages should the question mark in the illustration below replace?
Big data analytics processes data using Java.
Identify the accurate statement.
The process of identifying and eliminating erroneous or corrupt records from a record set, table, or database is known as data cleansing.
Which of the following terms best describes the illustration below?
Big data is a general phrase for data sets that are too massive or complicated to be processed by conventional data processing software.
Data that list all findings in a category are referred to as _________ data.
The summary could include information like the total number of observations, their mean value, frequency, and so on.
After gathering the data, which of the following steps does the data scientist perform?
The process of identifying and correcting (or eliminating) erroneous or corrupt records from a record set, table, or database is known as data cleansing, data cleaning, or data scrubbing.
Identify the accurate statement.
Raw data is another name for primary data.
Which of the following big data traits is comparatively more important to data science?
Organizations may store, handle, and manipulate enormous amounts of disparate data using big data when they need to.
Which of the following information is entered into a formula to provide findings that are widely accepted?
Processed data is the raw data that has undergone various steps of cleaning, transformation, and organization to make it suitable for analysis. It is processed in a way that removes noise, corrects errors, and converts it into a more usable format.
The problems with big data veracity go beyond volume, diversity, and velocity.
Uncertain or inaccurate data is referred to as data veracity.
Which of the following aspects of untidy data is most frequently problematic?
The three principles of tidy data can be broken in practically every way by real datasets, and they frequently are.
Which of the following analytic skills does an information management organization offer?
Make smarter judgments more quickly by analyzing data more quickly with stream computing.
Identify the accurate statement.
Visualization is growing in significance.
Which of the subsequent is an illustration of raw data?
Data that have not been modified after gathering are referred to as raw data.
Identify the incorrect statement.
Big Data is basically a concept that offers a chance to discover fresh perspectives on your current data as well as rules for gathering and analyzing your future data.
Which of the subsequent processes involves organizing datasets to make analysis easier?
The tidy data tenets offer a uniform approach to arrange data values within a dataset.