- Description
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