Options: a. It is a printed page where users will write their data to fill it up
b. It is an input screen designed to make the viewing and entering data easier
c. This is an important part of database used by analysts to draw conclusions
d. All of above
Options: A high paging activity is called thrashing.
B. A high executing activity is called thrashing
C. A extremely long process is called thrashing
D. A extremely long virtual memory is called thrashing
Ans:– A ,
. Who invented punched cards?
Options: A) Charles Babbage
B) Dr. Herman Hollerith
C) Howard Aikin
D) Joseph Jacquard
Options: Information stored in RAM can be changed by over writing it, Information stored in ROM cannot be changed by overwriting, Information can be stored in any location of RAM, Computer main memory can be accessed only sequentially
Options: constructs packets of data and sends them across the network, Â Â controls error detection and correction, Â Â defines the electrical characteristics of signals passed between the computer and communication devices, Â Â All of the above
. What happens when a user selects a record in a form and presses [Delete]?
Options: a. The record is deleted in the form and from its source table.
b. The record is deleted in the form, but not from its source table.
c. The record is neither deleted in the form, nor from its source table.
d. The record is not deleted in the form, but is deleted from its source table.
To define what columns should be displayed in an SQL SELECT statement:
Options: use FROM to name the source table(s) and list the columns to be shown after SELECT., use USING to name the source table(s) and list the columns to be shown after SELECT., use SELECT to name the source table(s) and list the columns to be shown after USING., use USING to name the source table(s) and list the columns to be shown after WHERE.