A large computer information system maintains many different computer files. Which among them is called a perpetual file?
specialized file
log file
master file
history file
A number of related records that are treated as a unit is called:
file
field
data
batch
A data dictionary doesn't provide information about:
where data is located
the size of the disk storage device
who own or responsible for the data
how the data is used
An audit tail:
is used to make back up copies
is the recorded history of operations performed on a file
can be used to restore lost information
all of the above
The distingushable part of a record are called:
files
fields
formats
A computer file can be best described as:
single data item
a general collection of data item
an orderly collection of data items
a random collection of data items
A good query system:
can accept English language commands
allows non programmers to access information stored in a database
can be accessed only by data processing professionals
both (a) and (b)
A database management system might consist of application programs and a software package called:
FORTRAN
AUTOFLOW
BPL
TOTAL
