The Database Environment

Q1: A database application can perform which of the following activities?

A Add records

B Read records

C Update records

D All of the above.

Q2: Legacy data is which of the following?

A Data contained in a newly-installed system

B Data rejected during the installation of a new system

C Data contained in a file system

D Data contained by a system used prior to the installation of a new system

Q3: An enterprise database is which of the following?

A A database designed to support only users external to an organization

B A database designed to support an entire organization

C A database designed to support a relatively small group

D A database designed to support a single PC

Q4: Which of the following types of databases are the most common?

A Personal

B Workgroup

C Department

D Enterprise

Q5: A shared database should:

A be accurate and available.

B provide for backup and recovery.

C be secure.

D All of the above.

Q6: Which of the following is true for a relational database?

A Data is represented by tables.

B It is difficult to access data.

C Complex programs have to be written for simple queries.

D All of the above.

Q7: A data warehouse uses:

A partial operational data.

B historical operational data.

C future operational data.

D health care data.

Q8: Structured data may include which of the following?

A Photo image

B Video clip

C Dates

D None of the above.

Q9: An extranet is which of the following?

A The use of Internet protocols with limited access to company data by the company's customers and suppliers.

B The use of Internet protocols with unlimited access to company data by the company's customers and suppliers.

C The use of Internet protocols with limited access to company data by people within an organization.

D The use of Internet protocols with unlimited access to company data by people within an organization.

Q10: A database management system (DBMS) is a:

A hardware system used to create, maintain, and provide controlled access to a database.

B hardware system used to create, maintain, and provide uncontrolled access to a database.

C software system used to create, maintain, and provide controlled access to a database.

D software system used to create, maintain, and provide uncontrolled access to a database.

Q11: Data administrators are responsible for:

A physical database design.

B managing technical issues in the database environment.

C overall management of data resources in an organization.

D writing application programs.

Q12: Duplicate data often results in loss of data integrity because:

A the data formats may be inconsistent.

B data values may not agree.

C Both A & B.

D Neither A & B.

Q13: Metadata enables database designers and users to do all of the following except:

A sample data.

B understand what data exist.

C what the fine distinctions are between similar data items.

D what the data mean.

Q14: Some advantages of the database approach include all, but:

A minimal data redundancy.

B improved data consistency.

C improved data sharing.

D program-data dependency.

Q15: An enterprise data model is:

A a graphical model that shows the high-level entities for an organization.

B a graphical model that shows all entities for an organization.

C a non-graphical model that shows the high-level entities for an organization.

D a non-graphical model that shows the all entities for an organization.


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