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Solved MCQ on Transaction Management in DBMS set-2


1) In the ............, one transaction inserts a row in the table while the other transaction is half way through its browsing of table.

A. transaction read problem

B. one way read problem

C. serial read problem

D. phantom read problem


2) Transaction processing is associated with everything below except.

A. producing detail, summery, or exception reports

B. recording a business activity

C. confirming an action or triggering a response

D. maintaining data


3) .......... helps solve concurrency problem.

A. locking

B. transaction monitor

C. transaction serializability

D. two phase commit


4) If a transaction acquires a shared lock, then it can perform .......... operation.

A. read

B. write

C. read and write

D. update


5) If a transaction obtains a shared lock on a row, it means that the transaction wants to ..... that row.

A. write

B. insert

C. execute

D. read


6) The node where the distributed transaction originates is called the .......

A. local coordinator

B. starting coordinator

C. global coordinator

D. originating node


7) If a transaction obtains an exclusive lock on a row, it means that the transaction wants to ....... that row.

A. select

B. update

C. view

D. read


8) If a transaction acquires exclusive lock, then it can perform .......... operation.

A. read

B. write

C. read and write

D. update


9) ........ is a specific concurrency problem wherein two transactions depend on each other for something.

A. phantom read problem

B. transaction read problem

C. deadlock

D. locking


10) If a database server is referenced in a distributed transaction, the value of its commit point strength determines which role it plays in the .........

A. two phase commit

B. two phase locking

C. transaction locking

D. checkpoints


11) Transaction .......... ensures that the transaction are being executed successfully.

A. concurrency

B. consistency

C. serialisability

D. non serialiasability


12) The situation in which a transaction holds a data item and waits for the release of data item held by some other transaction, which in turn waits for another transaction, is called .......

A. serialiable schedule

B. process waiting

C. concurrency

D. deadlock


13) ............ protocol grantees that a set of transactions becomes serialisable.

A. two phase locking

B. two phase commit

C. transaction locking

D. checkpoints


14) The global coordinator forgets about the transaction phase is called .........

A. Prepare phase

B. Commit phase

C. Forget phase

D. Global phase


15) In two phase commit, .......... coordinates the synchronization of the commit or rollback operations.

A. database manager

B. central coordinator

C. participants

D. concurrency control manager


16) In two-phase locking protocol, a transaction obtains locks in ........phase.

A. shrinking phase

B. growing phase

C. running phase

D. initial phase


17) A transaction processing system is also called as ........

A. processing monitor

B. transaction monitor

C. TP monitor

D. monitor


18) After the nodes are prepared, the distributed transaction is said to be ......

A. in-doubt

B. in-prepared

C. prepared transaction

D. in-node


19) In .........., we have many mini transactions within a main transaction.

A. transaction control

B. chained transaction

C. nested transaction

D. calling transaction


20) In a two-phase locking protocol, a transaction release locks in ......... phase.

A. shrinking phase

B. growing phase

C. running phase

D. initial phase

Answers:

1) D. phantom read problem
2) C. confirming an action or triggering a response
3) A. locking
4) A. read
5) D. read
6) C. global coordinator
7) B. update
8) C. read and write
9) C. deadlock
10) A. two phase commit
11) C. serialisability
12) D. deadlock
13) A. two phase locking
14) C. Forget phase
15) B. central coordinator
16) B. growing phase
17) C. TP monitor
18) A. in-doubt
19) B. chained transaction
20) A. shrinking phase

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