Exam 9: Database Management Approaches

On a client/server network,the server is a computer that provides data to the clients.​

​On a class diagram,a(n)____________________ symbol precedes each attribute.

In a DDBMS,the site where the user is located is called the remote site.​

​____ implies that users should not need to be concerned with the location of any specific data in the database.

The site that initiates the update in a two-phase commit is known as the ____.​

When users are unaware of the steps taken by the DDBMS to update the various copies of data,this characteristic of the DDBMS is called ____.​

____ implies that the performance of functions such as adding sites,changing versions of DBMSs,creating backups,and modifying hardware should not require planned shutdowns of the entire distributed database.​

In ____ systems,you create actions as part of data manipulation rather than as part of data definition.​

Methods are defined during the ___________________ process.​

The ____________________ symbol in a class diagram indicates whether other classes can view or update the value in the attribute.​

When users interact with an RDBMS,they use transactions.These types of systems are called ____ systems.​

The formula for message transmission time is: communication time = access delay + (data volume / X),where X represents ____.​

With respect to the definition of data warehouse,____ means that the data is read-only.​

If one class is a subclass of a second class,the second class is called a(n)____________________ of the first class.​

A global deadlock occurs at a single site in a distributed database.​