100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
PRE1 Questions with complete solution 2024 CA$19.59   Add to cart
Quickly navigate to
Preview
  2.  
  3. WGU D427
  4.  
  5. WGU D427

Exam (elaborations)

PRE1 Questions with complete solution 2024

 6 views  0 purchase
  • Course
  • WGU D427
  • Institution
  • WGU D427

PRE1 Questions with complete solution 2024 Data Management - Applications - D427 Create a data type with a positive value UNSIGNED Designating a foreign key in CREATE TABLE statement FOREIGN KEY (ColumnName) REFERENCES Tablename(ColumnName), Command to add a column to an existing t...

[Show more]

Preview 3 out of 25  pages

Document information

  • September 1, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • pre1
  • pre1 questions with complete solution 2024

Written for

  • WGU D427
  • WGU D427

Seller

avatar-seller
Academia199

Reviews received

Content preview

PRE-ASSESSMENT: DATA
MANAGEMENT - APPLICATIONS
D
Which kind of relationship is displayed in this entity-relationship diagram?
One-to-one binary
One-to-one unary
Many-to-many binary
Many-to-many unary




1.
A salesperson is authorized to sell many products and a product can be sold
by many salespersons. Which kind of binary relationship does this scenario
describe?
One-to-one
One-to-many
Many-to-many
One-to-one binary
C




A
Which kind of relationship is displayed in this entity-relationship diagram?


Unary one-to-one

,Unary many-to-many


Binary one-to-one


Binary many-to-many


Ternary one-to-one


Ternary many-to-many




B
How is this portion of the entity-relationship diagram read, from left to right?
No books are written by an author.
At least one book was written by an author.
One book was written by more than one author.
Only one book was written by one author.




Which two examples are attributes? Choose 2 answers


A person attending a meeting


An employee number

, A sales meeting


A meeting code


B, D




Which delete rule sets column values in a child table to a missing value when
the matching data is deleted from the parent table?


Restrict


Cascade


Matching


Set-to-Null


D




A
In this entity-relationship diagram, Salesperson 361 is related to two
customers. The table follows the restrict delete rule.
What happens if someone tries to delete Salesperson 361 from the customer
records?

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Academia199. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$19.59. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
CA$19.59
  • (0)
  Add to cart