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Database Management System
Database Basic
Quiz 1
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Q.1
Which of the following is not a property of transactions?
a) Atomicity
b) Concurrency
c) Isolation
d) Durability
Q.2
SNAPSHOT is used for (DBA)
a) Synonym
b) Tablespace
c) System server
d) Dynamic data replication
Q.3
Isolation of the transactions is ensured by
a) Transaction management
b) Application programmer
c) Concurrency control
d) Recovery management
Q.4
Constraint checking can be disabled in existing _______________ and _____________ constraints so that any data you modify or add to the table is not checked against the constraint.
a) CHECK, FOREIGN KEY
b) DELETE, FOREIGN KEY
c) CHECK, PRIMARY KEY
d) PRIMARY KEY, FOREIGN KEY
Q.5
Problems occurs if we don’t implement a proper locking strategy
a) Dirty reads
b) Phantom reads
c) Lost updates
d) Unrepeatable reads
Q.6
Which of the following fixed database roles can add or remove user IDs?
a) db_accessadmin
b) db_securityadmin
c) db_setupadmin
d) db_sysadmin
Q.7
By default sql server has ___________ isolation level
a) READ COMMITTED
b) READ UNCOMMITTED
c) SERIALIZABLE
d) REPEATABLE READ
Q.8
Which of the following statements is/are not true for SQL profiler?
a) Enables you to monitor events
b) Check if rows are being inserted properly
c) Check the performance of a stored procedure
d) ALL of the mentioned
Q.9
Which of the following is the original purpose of SQL?
a) To specify the syntax and semantics of SQL data definition language
b) To specify the syntax and semantics of SQL manipulation language
c) To define the data structures
d) All of the mentioned
Q.10
SQL can be used to:
a) Create database structures only
b) Query database data only
c) Modify database data only
d) All of the mentioned
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