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
In ________ mode, the communication channel is used in both directions at the same time?
D. None of the above
Ans:– A ,
In SQL, the CREATE TABLESPACE is used
Options: to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace, to create a database trigger, to add/rename data files, to change storage, All of the above
Options: the speed at which the monitor can accept data from the computer, the number of phosphor dots that react when hit by the electron beam, the number of addressable elements on the tube, the number of pixels in each square centimeter
Options: allows the programmer to write base registers and displacements explicitly in the source program., is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain., allows multiple programs to reside in separate areas of core at the same time., is a term that refers to the control programs of an operating system.
Which of the following is true concerning a global transaction?
Options: The required data are at one local site and the distributed DBMS routes requests as necessary., The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary., The required data are at one local site and the distributed DBMS passes the request to only the local DBMS., The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.