1) ______ is copying the three sets of files (database files, redo logs, and control file) when the instance is shut down. This is a straight file copy, usually from the disk directly
to tape. You must shut down the instance to guarantee a consistent copy.

a) cold backup
b) hot backup
c) Armstrong Rules

Answer is cold backup

2)  _______  is a program module, which ensures that database, remains in a consistent state despite system failures and concurrent transaction execution proceeds without conflicting.

a) Transaction manager
b) File manager
c) None of these

Answer is : Transaction manager

3) _______ is a program module that provides the interface between the low-level data stored in database, application programs and queries submitted to the system.

a) Buffer manager
b) Storage manager
C) None of  these

Answer is: Storage manager

4) A _____ with respect to DBMS relates to user commands that are used to interact with a data base.
a) Connection  string
b) Query String
c) Query

answer is: Query