Edition by Hoffer, Ramesh, and Topi
, Chapterg1g ThegDatabasegEnvironmentgandgDevelopmentgProcess
1. According to the McKinsey Global Institute Report, in the year 2010 alone, global businesses saved over:
A) 1 terabyte of data.
B) 3 gigabytes of data.
C) at least 100 petabytes of data.
D) more than 7 billion exabytes of data.
Correct Answer: D
2. Managing a database includes all the following actions EXCEPT:
A) data collection.
B) organizing information.
C) designing web content.
D) data administration.
Correct Answer: C
3. A database is a(n) __________ grouping of related information.
A) logically
B) physically
C) loosely
D) poorly
Correct Answer: A
4. Older computing systems typically contain __________ quality data and are usually hosted on
__________.
A) low; personal computers
B) high; mainframes
C) low; mainframes
D) high; departmental computers
Correct Answer: C
5. Program-data dependency results from:
A) file information being defined within every data application.
, B) data details being stored on a server.
C) embedding data descriptions within the programming logic.
D) placing data and programs together.
Correct Answer: A
6. In file-based processing systems, due to independent development of applications:
A) data is never duplicated.
B) unintended repeated data sets are common.
C) data can always be easily accessed across applications.
D) there’s a high amount of file input/output.
Correct Answer: B
7. A relational database connects entities using common fields placed within a file called a(n):
A) entity
B) relationship
C) relation
D) association
Correct Answer: C
8. A(n) __________ is often developed based on a form or report that a user needs regularly.
A) organizational view
B) data report
C) user view
D) snapshot
Correct Answer: C
9. A visual tool for mapping the structure and connections among data is referred to as a(n):
A) XML data model
B) hypertext graphic
C) relational database
D) data model
Correct Answer: D
, 10. Data that provides descriptive details about other data is known as:
A) relationships
B) logical data
C) physical data
D) metadata
Correct Answer: D
11) Metadata typically includes all of the following information EXCEPT:
A) definitions of data elements
B) the size or length of the data
C) valid or acceptable values
D) the file's physical storage location
Correct Answer: D
12) A(n) __________ refers to a person, place, object, event, or concept that an organization wishes to keep data
about.
A) relationship
B) object
C) attribute
D) entity
Correct Answer: D
13) In a well-structured database, __________ are defined between entities to allow for the retrieval of needed
data.
A) Entities
B) Relationships
C) Lines
D) Ties
Correct Answer: B