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CIS 207T Week 4 WileyPLUS Weekly Exam

CIS 207T Week 4 WileyPLUS Weekly Exam

For this activity, you will take a graded exam. You should complete this exam after you have completed all of the other materials and activities for this week.

Complete this graded exam by doing the following:

1. Click the link to begin the graded exam.

2. Read the exam policies carefully.

3. Click the Next button to begin the exam.

4. Read each question carefully. Then, answer the question and click the Submit Answer button to submit each answer for grading.

Question 1

Watch the following video and answer the question below.

Big Data is the same thing as huge amounts of structured data in organizational databases.

True

False

Question 2

Which of the following is NOT a type of Big Data?

Traditional enterprise data

Sensor data

Social data

Images

None of the choices is correct

Question 3

NoSQL databases can manage more different types of data than a traditional relational database.

True

False

Question 4

Watch the following video and answer the question below.

A/B experiments are so-named because there are only two possible outcomes for each experiment.

True

False

Question 5

Watch the following video and answer the question below.

Data subject to constraints is an example of

data integrity.

data consistency.

data redundancy.

Question 6

Watch the following video and answer the question below.

A group of logically related fields is a(n)

record.

database.

file.

Question 7

Watch the following video and answer the question below.

Each _________ in a relational database is a record.

column

attribute

row

Question 8

Watch the following video and answer the question below.

One of the attributes in a record must be a primary key.

True

False

Question 9

Watch the following video and answer the question below.

Normalization typically improves processing performance.

True

False

Question 10

Watch the following video and answer the question below.

When data are normalized, attributes in the table depend on the primary key and the secondary key.

True

False

Question 11

Watch the following video and answer the question below.

A data warehouse is a repository of historical data that are organized by subject to support decision makers in the organization.

True

False

Question 12

Watch the following video and answer the question below.

Organizational databases access one record at a time, where data warehouses access groups of related records.

True

False

Question 13

Watch the following video and answer the question below.

Data in a data warehouse are organized by business process, where data in corporate databases are organized by subject.

True

False

Question 14

Watch the following video and answer the question below.

Data updates in a data warehouse are performed by the MIS department, NOT the users.

True

False

Question 15

Watch the following video and answer the question below.

The MOST common source system for a company’s data warehouse is its corporate operational databases.

True

False

Question 16

Watch the following video and answer the question below.

Companies often have to clean up the data before it can be imported into the data warehouse.

True

False

Question 17

Watch the following video and answer the question below.

The ETL process is now typically called data integration.

True

False

Question 18

Watch the following video and answer the question below.

The MOST common method for storing data in a data warehouse is

one central data warehouse.

independent data marts.

hub and spoke.

Question 19

Watch the following video and answer the question below.

The IT department is solely responsible for the quality of the data in the data warehouse.

True

False

Question 20

Watch the following video and answer the question below.

Governance of a data warehouse must be a collaboration between business users and IT personnel.

True

False

Question 21

Watch the following video and answer the question below.

After you have taken a particular course, your insights on how to do well in that course would be considered to be tacit knowledge.

True

False

Question 22

The IT infrastructure needed for you to register online for next semester would be considered to be explicit knowledge.

True

False

Question 23

Watch the following video and answer the question below.

Robots are being used in a decreasing number of everyday tasks.

True

False

Question 24

Process and procedures are important but not critical to the effective use of computer based information systems.

True

False

Question 25

An App (Application) is a computer program designed to support a specific task?

True

False

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