Multiple Choice
The use of a randomizing transformation to process transactions against a direct-access master file is based on
A) comparing the master record key and the transaction record key for equality.
B) converting the transaction record key to a storage area location address by using a mathematical algorithm.
C) searching a list structure for the associated master file record.
D) searching an index for the associated master file record.
Correct Answer:

Verified
Correct Answer:
Verified
Q42: When a DBA is present and active
Q43: One primary objective of a data dictionary
Q44: Relational databases use relational algebra to create
Q45: The entity-relationship data model is perhaps the
Q46: ACID is used to prevent database fraud.
Q48: In a relational database,tables in which no
Q49: _ in ACID means a transaction is
Q50: An invaluable benefit of DBMSs is their
Q51: A database is defined in terms of
Q52: The computer language that allows a DBA