Exam 5: Data at the Core of the Enterprise

The most essential element of an enterprise system is likely to be the database management system.

Which of the following is a DDL command?

Thirty years ago a megabyte of memory for large computers cost about:

Another name for a relation is:

The move to an network database model is bound to happen.

Based upon a rigorous theoretical foundation, this model gives end-users the flexibility to query the database in unplanned way but tends to offer slow response times.

The first model to separate data from its processing. It was able to handle large amounts of data but lacked the expressiveness needed to represent many business situations.

Among the jobs of a DBA are:

Information generally refers to facts that can be stored in a computer system.

Entity relationship modeling can be used for which of the following data models:

Entity relationship modeling can be used for which of the following data models:

The move to an hierarchical database model is bound to happen.

This model attempts to transcend pure data description by capturing both data and process but suffers from the lack of clear industry standards.

Which of the following is a DML command?

Thirty years ago a megabyte of memory for large computers cost about:

Knowledge is processed data that can be transferred from one person to another without loss of integrity.

Developed as a joint effort by industry and government, this model sustains complicated data relationships but requires them to be specified ahead of time making the database difficult to maintain.

Among the jobs of a DBA are:

A file made up of rows and columns where the rows are records and the columns describe the data.