DAD 220 Exam Questions with Verified
Correct Answers
Data
raw information, collected raw facts and values - stock prices
Information
data that has been processed and analyzed to give the facts more value and meaning - a graph
of stock prices over time
Types of data formats
text, image, audio, video
Types of data sources
industries, governments, individuals, and more
common sources of data - Social Networks
Facebook, twitter, youtube, blogs, search engines, etc
common sources of data - business systems
medical records, commercial transactions, bank records, e-commerce
common sources of data - Internet of Things
home automation, weather sensors, traffic sensors, webcams, surveillance videos, security
images
Data.gov
, A U.S. government geoportal that allows access to U.S. Federal Executive Branch datasets.
provides more than 250,000 U.S. government data sets to support research and application
development
NASA's Data Portal
provides numerous data sets in categories such as aerospace, earth science, and space science
National Cancer Institute
The federal government's principal agency for cancer research. Collects and reports data and
information relative to all forms of cancer. Also provides support for research, grants, and
training in the pursuit for a cure for cancer.
Data Science Central
Supports Big Data (large data sets provided for computational analysis) initiatives. Also
supports Big Data practitioners in scientific industries such as machine learning, artificial
intelligence, and deep learning.
NYCOpenData
Data collected by the New York City government. The data is used to support continuous
monitoring and improvements of the health and well being of NYC and its residents.
Database
a collection of data in a structured format that correlates related data values. The database
structure enables fast storing, retrieving, updating, and deleting of data.
Database Management System (DBMS)
Correct Answers
Data
raw information, collected raw facts and values - stock prices
Information
data that has been processed and analyzed to give the facts more value and meaning - a graph
of stock prices over time
Types of data formats
text, image, audio, video
Types of data sources
industries, governments, individuals, and more
common sources of data - Social Networks
Facebook, twitter, youtube, blogs, search engines, etc
common sources of data - business systems
medical records, commercial transactions, bank records, e-commerce
common sources of data - Internet of Things
home automation, weather sensors, traffic sensors, webcams, surveillance videos, security
images
Data.gov
, A U.S. government geoportal that allows access to U.S. Federal Executive Branch datasets.
provides more than 250,000 U.S. government data sets to support research and application
development
NASA's Data Portal
provides numerous data sets in categories such as aerospace, earth science, and space science
National Cancer Institute
The federal government's principal agency for cancer research. Collects and reports data and
information relative to all forms of cancer. Also provides support for research, grants, and
training in the pursuit for a cure for cancer.
Data Science Central
Supports Big Data (large data sets provided for computational analysis) initiatives. Also
supports Big Data practitioners in scientific industries such as machine learning, artificial
intelligence, and deep learning.
NYCOpenData
Data collected by the New York City government. The data is used to support continuous
monitoring and improvements of the health and well being of NYC and its residents.
Database
a collection of data in a structured format that correlates related data values. The database
structure enables fast storing, retrieving, updating, and deleting of data.
Database Management System (DBMS)
