Which of the following is not true of immediate processing?
Options: It is often used in real-time applications, It can occur with either sequential of direct-access files, It can be used in an airline-reservation system, Transactions are processed shortly after a real-world event occurs
Options: hardware system used to create, maintain, and provide controlled access to a database., hardware system used to create, maintain, and provide uncontrolled access to a database., software system used to create, maintain, and provide controlled access to a database., software system used to create, maintain, and provide uncontrolled access to a database.
Which of the following functions is(are) performed by the loader
Options: allocate space in memory for the programs and resolve symbolic references between object decks, adjust all address dependent locations, such as address constants, to correspond to the allocated space., physically place the machine instructions and data into memory., All of the above
What is the main reason the OSI model was created?
Options: To create a layered model larger than the DoD model., So application developers can change only one layer's protocols at a time., So different networks could communicate., So Cisco could use the model.
Options: describes how data are structured in the data base, specifies for the DBMS what is required; the techniques used to process data, determine how data must be structured to produce the user's view, All of the above
Options: Oracle views cannot use the ORDER BY clause in view definitions., Oracle views are created using the standard SQL-92 CREATE VIEW command., Oracle views can by queried., The SQL-92 standard does not allow the use of the ORDER BY clause in view definitions.
What is the difference between integral and derivative control?
Options: derivative control does not eliminate offset error, integral control has slower response to an error signal., derivative control responds to a change in the rate of change in the error signal, All of the above
We have been given access to the company's operational data, and have been asked to produce a report. We discover that some of the data we need are in an SQL server database while other needed data are in a separate Oracle database. This is an example of ________ .
Options: dirty data, inconsistent data, non-integrated data, a "wrong format" problem