DATABASE FUNDAMENTALS
BASICS OF BIG DATA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Tallying how many pencils and pens you use throughout a school year so you know how many to buy for the start of the next school year to insure you will have enough
|
|
|
Creating a seating chart for a classroom based on an alphabetized list of student Names
|
|
|
Keeping track of all employees’ email use to see how many personal or work-related emails are sent during work time to check for productivity
|
|
|
Recording the amount of time it takes a student to travel from one class to another class in order to find the average
|
Detailed explanation-1: -What would be the best way for the coach to use this information in order to order sizes that work for the majority of the team? Sort the data by height and weight and order smaller sizes for the girls that are shorter and weigh less and order larger sizes for the girls that are taller and weigh more.
Detailed explanation-2: -What best describes what happens when we take unstructured data and organize it into structured data? a. When we extract the the data from an unstructured source and organize it into a structured data set, no data is lost, it is just in a more usable format.
Detailed explanation-3: -Big data comes from myriad sources–some examples are transaction processing systems, customer databases, documents, emails, medical records, internet clickstream logs, mobile apps and social networks.
Detailed explanation-4: -Big Data Examples to Know Government and public administration: track tax, defense and public health data. Business: streamline management operations and optimize costs. Healthcare: access medical records and accelerate treatment development. Cybersecurity: detect system vulnerabilities and cyber threats.