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Week 3 : Managing Assets and Resources in the Digital Firm - Homework
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1. A characteristic or quality describing an entity is called a(n) (Points : 1)
field.
tuple.
key field.
attribute.
2. The confusion created by _____ makes it difficult for companies to create customer relationship
management, supply chain management, or enterprise systems that integrate data from different sources.
(Points : 1)
batch processing
data redundancy
data independence
online processing
3. Duplicate data in multiple data files is called (Points : 1)
data redundancy.
data multiplication.
data independence.
data backups.
4. A DBMS (Points : 1)
makes
makes
makes
makes
the physical database available for different logical views.
the logical database available for different analytical views.
the physical database available for different analytical views.
the relational database available for different analytical views.
5. The logical view (Points : 1)
shows how data are organized and structured on the storage media.
presents an entry screen to the user.
allows the creation of supplementary reports.
presents data as they would be perceived by end users.
6. The type of logical database model that treats data as if they were stored in two-dimensional tables is the
(Points : 1)
OODBMS.
pre-digital DBMS.
relational DBMS.
hierarchical DBMS.
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7. A field identified in a table as holding the unique identifier of the table's records is called the (Points : 1)
primary key.
key field.
primary field.
unique ID.
8. The data dictionary serves as an important data management tool by (Points : 1)
assigning attributes to the data.
creating an inventory of data contained in the database.
presenting data as end users or business specialists would perceive them.
maintaining data in updated form.
9. An automated or manual file that...