M0084 – Sistem Informasi dalam Manajemen
Multiple Choice – Individual Assignment
Pertemuan – 10
Database Management Systems
1. In the data hierarchy, what is a collection of related data fields?
a. File
b. Record
c. Database
d. Data
2. Which database definition is the collection of all of a firm's computer-based data?
a. Database
b. Relational database
c. General definition of a database
d. Restrictive definition of a database
3. Which of the following statements is false regarding flat files?
a. A flat file can have repeating columns.
b. A flat file provides the constant sequence of data fields that database management
requires.
c. Flat files allow relational database structures to be normalized.
d. A table must be a flat file because computers read data fields from a record in
sequence.
4. Which statement is false concerning network database structures?
a. The network database structure was developed to allow retrieval of specific
records.
b. The network database structure allows a given record to point to any other record
in the database.
c. The network database structure solved the problem of having to backtrack all the
way to a joining "branch" of the database.
d. The network database structure was the first database management system
developed by GE in 1964.
5. What type of database structure relies on implicit relationships?
a. Hierarchical
b. Network
c. Relational
d. Object-oriented
6. The logical integration of records across multiple physical locations is called the:
a. database repository.
b. database concept.
c. database dictionary.
d. data dictionary.
7. Which step is not part of the conceptual model of creating a database?
a. Determine the data that you need.
b. Determine your information needs.
c. Describe the data.
d. Enter the data into the database.
8. Which statement is false regarding entity-relationship diagrams?
a. ERDs deal with data in entities and the relationships between entities.
b. Information specialists speak in terms of individual data fields as opposed to
related data fields.
c. An entity may frequently be broken into several tables.
d. ERDs express which entities should conceptually be related to others.
9. Which of the following consists of the named class, and actions that act upon the
class?
a. Entity-relationship diagram
b. Data flow diagram
c. Class diagram
d. Object diagram
10. Aggregated data from the database that are formatted in a manner that aids decision
making are:
a. forms.
b. reports.
c. queries.
d. tables.
11. The code that relational database management systems use to perform their database
tasks is referred to as:
a. QBE.
b. SQL.
c. OLAP.
d. Sequel Server.
12. Which of the following is not a part of the family of concepts that view the firm's data
as a treasure box to be opened, examined, and conquered?
a. Data mining
b. Data marts
c. Knowledge management
d. Data warehousing
13. The database administrator's role of monitoring the database activity using statistics
provided by the database management system is referred to as:
a. planning.
b. implementation.
c. maintenance.
d. security.
14. The database personnel whose duties fall into the areas of planning, implementation,
operation, and security are the:
a. data administrators.
b. database administrators.
c. database programmers.
d. end users.
15. Which of the following is not a disadvantage of using a database management
system?
a. Obtain expensive software.
b. Obtain a large hardware configuration.
c. Reduce data redundancy.
d. Hire and maintain a DBA staff.