Which of the following is a characteristic of parallel databases?
There can be shared-memory or shared disk
They are connected using public purpose network
Machines in this environment are in different locations
It has local autonomy
Correct answer is A
No explanation has been provided for this answer.
The protection of database against compromise is known as
Data passwording
Data protection
Database encoding
Database security
Correct answer is D
No explanation has been provided for this answer.
One advantage of indexed sequential file organization is that
Index tables are small and can be searched quickly
It is cost effective
It is suitable for dynamically changing files
It requires less storage space
Correct answer is C
No explanation has been provided for this answer.
Arranging records in a file according to a particular order is referred to as
Matching
Merging
Sorting
Updating
Correct answer is C
No explanation has been provided for this answer.
Which of the foolowing statements about relational model is not correct?
A file is a sequence of related records
A record consist of a row of data containing single value from each column
Data in the column of a table are of the same data type
Data in the rows of a table are of the same data type
Correct answer is D
No explanation has been provided for this answer.