Skip to main content

Quiz: Chapter 02 Data Models

 Review link: https://quizlet.com/764523499/quiz-chapter-02-data-models-flash-cards/

Which of the following is a fundamental data modeling component, helping ensure data integrity?

a. Relationship

b. Entity

c. Attribute

d. Constraint

Hide Feedback

Correct

 

Which of the following is not a valid business rule?

a. An invoice can only be paid to one customer.

b. An invoice must be paid in a reasonable amount of time.

c. An invoice may have many items.

d. A customer must reside in the USA.

Hide Feedback

Correct

 

 

Why is identifying and documenting business rules essential to database design?

a. It allows the user to understand relationship participation rules and constraints.

b. It allows the designer to manage business processes.

c. It can be a communication tool between users and managers.

d. It helps to standardize the company's view of data.

Hide Feedback

Correct

 

 

Which of the following two-dimensional structures is known as a relation?


b. Entity

c. Table

d. File

 

Hide Feedback

Correct

 

In an entity relational model (ERD), what is each row in a table known as?

a. An entity set

b. An entity tuple

c. An entity occurrence

d. An entity relation

Hide Feedback

Correct

 

Which of the following is a disadvantage of various database models?

a. Database security

b. Visual modeling

c. System complexity

d. Data sharing

Hide Feedback

Correct

 

Which of the following entity relationship (ER) connectivity statements is invalid?

a. A CUSTOMER gender is MALE or FEMALE

b. PAINTER paints many PAINTINGs

c. An EMPLOYEE learns many SKILLs

d. An EMPLOYEE manages a STORE

Hide Feedback

Correct

Which of the following is not a valid component of object-oriented data models?

a. Object

b. Volume

c. Attributes

d. Class

Hide Feedback

Correct

A CEO of a company wants to find a new and improved way to manage and extract business insights from large amounts of web- and sensor-generated data. Which of the following could they use to achieve this goal?

a. The 3Vs

b. The internet of Things (IoT)

c. Hadoop

d. Big data

Hide Feedback

Correct

 

Which of the following technologies is not used in Big Data?

a. Hadoop

b. NoSQL

c. SQL

d. MapReduce

Hide Feedback

Correct

 

Labels:

Comments

Post a Comment

Popular posts from this blog

GE5103-2 Project Management [Aug 23 Syllabus]

    Some of the advantages of using time boxes and cycles in project coordination efforts include creating urgency, measuring progress, and allowing for predictable measurements. A)        True 2.    Even though most project managers are not contract specialists, they need to understand the process well enough to coordinate with the team. For the current assignment, you are looking at a short-term and small effort with a contractor of just a few hours without significant clarity. Which of the following would be the most applicable contract to use in this situation? A)        Time and materials 3. The project you are working on has had modifications to the plan from the start and even how the project is run. Project governance covers all of the 3 following except: A)        Naming The project manager 4. Of the following, which is most likely a trigger condition defined early in t...
Post a Comment
Read more

GE5093 Design Thinking All Quizzes

  GE---5093-1D2-FA-2021 - Design Thinking Home My courses 2021-FA GE---5093-1D2-FA-2021 Week 1 Reading Quiz 1 Started on Sunday, October 31, 2021, 2:04 PM State Finished Completed on Sunday, October 31, 2021, 2:30 PM Time taken 25 mins 58 secs Grade 8.00  out of 10.00 ( 80 %) Top of Form Question  1 Correct 1.00 points out of 1.00 Flag question Question text A critical finding of Edward Lorenz related to Design Thinking was: Select one: a. An application of the caterpillar effect b. The idea of deterministic chaos or the "Butterfly Effect" c. Business leaders enjoy chaos d. Statistical modeling of weather was fairly accurate in the long term Feedback Your answer is correct. The correct answer is: The idea of deterministic chaos or the "Butterfly Effect" Question  2 Incorrect 0.00 point...
Post a Comment
Read more

IS5503 Cloud Computing Solutions

  Week-1 Pre Assessment 1) You are working as a cloud architect at Congruence crop. Management he asked you to implement an vitualized infrastructure to provide the company’s  employees with on-demand storage which should be accessible through a web interface over the public internet. Which of the following cloud deployment models will you use to implement this ? Private 2) Which of the following storage solutions saves space by eliminating files or blocks that have redundant data? Deduplication 3) You are as a cloud administrator at BigCo. Management he asked you to move the company’s on-premises data to the cloud. You have received a request from the network administration team while migrating. They want to manage both the Linux- and Windows-based servers efficiently. What should you implement to accomplish this task? Secure Shell Remote Desktop Protocol 4) Ron, a security analyst, found an unkwon design flaw in a product. He notices that correc...
Post a Comment
Read more