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Welcome to the Recovery System MCQs Page

Dive deep into the fascinating world of Recovery System with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Recovery System, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Recovery System, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

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Check out the MCQs below to embark on an enriching journey through Recovery System. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Recovery System. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Recovery System MCQs | Page 2 of 10

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Q11.
Which of the following is not a recovery technique?

a.

Deferred update

b.

Immediate update

c.

Two-phase commit

d.

Recovery management

Discuss
Answer: (c).Two-phase commit
Q12.
Checkpoints are a part of

a.

Recovery measures

b.

Security measures

c.

Concurrency measures

d.

Authorization measures

Discuss
Answer: (a).Recovery measures
Q13.
....... deals with soft errors, such as power failures.

a.

system recovery

b.

media recovery

c.

database recovery

d.

failure recovery

Discuss
Answer: (d).failure recovery
Q14.
Rollback of transactions is normally used to :

a.

recover from transaction failure

b.

update the transaction

c.

retrieve old records

d.

repeat a transaction

Discuss
Answer: (a).recover from transaction failure
Q15.
A transaction performs on the isolation level of the Read Uncommitted if :

a.

A dirty read occurs

b.

Non-repeatable read occurs

c.

Phantom reads occurs

d.

All of the above

Discuss
Answer: (d).All of the above
Q16.
Which commands are used to control which users have which privilege over which objects ?

a.

QUE and QUIST

b.

GRANT and REVOKE

c.

CASECADE and MVD

d.

None of the above

Discuss
Answer: (b).GRANT and REVOKE
Q17.
When a deadlock is detected the recovery is normally accomplished by :

a.

rollback of transaction

b.

locking of data

c.

consistency checking

d.

none of these

Discuss
Answer: (a).rollback of transaction
Q18.
Which is not a desirable property of a transaction ?

a.

Isolation

b.

Atomicity

c.

Durability

d.

All are desirable

Discuss
Answer: (d).All are desirable
Q19.
A directed graph which represents the deadlock is called :

a.

cycle graph

b.

deadlock graph

c.

wait-for graph

d.

none of the above

Discuss
Answer: (c).wait-for graph
Q20.
Transaction Throughput is :

a.

Elapsed Time between submitting a transaction and receiving a transaction.

b.

Average no. of transaction processed per second.

c.

No. of resources used by a transaction.

d.

None of the above

Discuss
Answer: (b).Average no. of transaction processed per second.
Page 2 of 10

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