Exam 5: Database Processing

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NoSQL means nonrelational databases that support very high transaction rates processing relatively simple data structures, replicated on many servers in the cloud.

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A foreign key is essential in relational databases to represent the relationship between two tables.

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What are the steps involved in transforming a data model into a relational database design?

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A group of similar rows or records in a table is called a field.

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Which of the following refers to the problem that exists in database applications when two users modify the same data item, but only one of those changes is recorded?

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A user does not need user account credentials to access and process a database.

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When using the relational model to represent two tables, one must ________.

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Users are the final judges as to what data the database should contain and how the records in that database should be related to one another.

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Managing the impact of database structure changes on applications and users is an operational task for a database administrator.

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Browser applications are thin-client applications that need to be pre-installed on the users' computers.

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Explain the role of users in the database development process.

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A data model describes data and relationships that will be stored in the database.

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Identify the open source DBMS product among the following.

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Special data that describes the structure of a database is called metadata.

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Minimum cardinalities represent the lower limit on the number of entities required in a relationship.

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The database administrator of an organization constantly manages the processing rights and responsibilities of employees. This is an example of a(n) ________ task.

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Columns that are keys to different tables than the ones in which they reside are called ________.

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Browser-based applications are more dynamic and better suited to today's world than older database applications.

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The small oval on a line in an E-R diagram means that the relationship must have an entity of that type.

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Albert creates a relational database to store employee performance statistics. He stores each employee's data in independent rows and creates a column named "Employee Number" to assign unique numbers to each employee. This column is referred to as a(n) ________.

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