1) In the …………, one transaction inserts a row in the table while the other transaction is halfway through its browsing of the table.
A. transaction read a problem
B. one way read a problem
C. serial read problem
D. phantom read problem
2) Transaction processing is associated with everything below except.
A. producing detail, summary, or exception reports
B. recording a business activity
C. confirming an action or triggering a response
D. maintaining data
3) ………. helps solve the 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 an 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 a 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 is being executed successfully.
A. concurrency
B. consistency
C. serializability
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. serializable schedule
B. process waiting
C. concurrency
D. deadlock
13) ………… protocol grantees that a set of transactions becomes serializable.
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 the 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. serializability
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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