Computer Science > EXAM > WGU C175 Final / Exam / 100% CORRECT ANSWERS (All)

WGU C175 Final / Exam / 100% CORRECT ANSWERS

Document Content and Description Below

What is a broad definition of data? - ANS -Raw facts that are captured on printed or digital media What are data? - ANS -Facts that are collected and stored in a database system What is a determ... ining characteristic of unstructured data? - ANS -It does not follow a data model. Which is true about flat files? - ANS -They contain no internal hierarchical organization. Which technology has no internal hierarchy? - ANS -Flat files How were data retrieved before database management systems? - ANS -Sequentially from simple files In which two ways does a database management system environment increase effectiveness in working with data? - ANS -- It enables data sharing, - It permits storage of vast volumes of data. What is the uniquely identifiable element about which data can be categorized in an entity-relationship diagram? - ANS -Entity types Which classification is correct for the box marked "Quantity" in the given entity-relationship diagram? - ANS -Intersection data Which data classification is an entity? - ANS -Event A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons. Which kind of binary relationship is described in this example? - ANS -Many-to-many Which three kinds of rules for referential integrity are provided by modern relational database management systems? - ANS -Insert, Delete, Update What is an important aspect of "referential integrity"? - ANS -Reference to data in one relation is based on values in another relation. Sales data, detailing the customer names, products sold, and salespersons, is kept in a database. Which kind of data in this database would qualify as intersection data related to both the product and salesperson entities? - ANS -Customer names [Show More]

Last updated: 1 year ago

Preview 1 out of 9 pages

Reviews( 0 )

$4.00

Add to cart

Instant download

Can't find what you want? Try our AI powered Search

OR

GET ASSIGNMENT HELP
71
0

Document information


Connected school, study & course


About the document


Uploaded On

Oct 24, 2022

Number of pages

9

Written in

Seller


seller-icon
MARIA J

Member since 1 year

2 Documents Sold


Additional information

This document has been written for:

Uploaded

Oct 24, 2022

Downloads

 0

Views

 71

Document Keyword Tags

Recommended For You

What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Browsegrades · High quality services·