Options: Data stored in the various operational systems throughout the organization., Current data intended to be the single source for all decision support systems., Data stored in one operational system in the organization., Data that has been selected and formatted for end-user support applications.
.The elements of an array are stored successively in memory cells because
Options: A)by this way computer can keep track only the address of the first element and the addresses of other elements can be calculated
b.the architecture of computer memory does not allow arrays to store other than serially
c.both of above
d.none of above
Which of the following statements are correct about 6 used in the program?
Options: In the first statement 6 specifies a particular element, whereas in the second statement it specifies a type., In the first statement 6 specifies a array size, whereas in the second statement it specifies a particular element of array., In the first statement 6 specifies a particular element, whereas in the second statement it specifies a array size., In both the statement 6 specifies array size.
Options: making the programmers understand how the system will function., communicating to the user, quickly, how the system, when developed, will look like and get a feedback., giving a demo of the software, to the system manager to whom he reports, both (a) and (b)
Concurrency control is important for which of the following reasons?
Options: To ensure data integrity when updates occur to the database in a multiuser environment, To ensure data integrity when updates occur to the database in a single-user environment, To ensure data integrity while reading data occurs to the database in a multiuser environment, To ensure data integrity while reading data occurs to the database in a single-user environment
Options: one or more conductors that serve as a common connection for a related group of devices, a continuous frequency capable of being modulated or impressed with a second signal, the condition with two or more stations attempt to use the same channel at the same time, a collection of interconnected functional units that provides a data communications service among stations attached to the network
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
Options: lets you define different forms for different operations, lets you create a look-up form with an associated read-only password to prevent access by unauthorized users, both (a) and (b), allow you to entry data in all the forms
Options: a feature of data processing systems that allows for the study of data as processed from step to step; and auditor can then trace all transactions that affect an account., a data item that characterizes an object, two or more data items handled as a unit, All of the above