Transactions 2: Serializability

Transactions 2: Serializability

University

15 Qs

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Transactions 2: Serializability

Transactions 2: Serializability

Assessment

Quiz

Computers

University

Practice Problem

Medium

Created by

ANISA HERDIANI

Used 45+ times

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A (possibly concurrent) schedule is serializable if it is ....

executed in a real time manner

always gives the same result

executed serially

equivalent to a serial schedule

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

We can identify a serializable schedule by checking the following notions ...

Conflict serializability

View serializability

Recoverable serializability

Concurrent serializability

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following instructions are conflicts if executed consecutively, except..

li = read(Q), lj = read(Q)

li = read(Q), lj = write(Q)

li = write(Q), lj = read(Q)

li = write(Q), lj = write(Q)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a schedule S can be transformed into a schedule S’ by a series of swaps of non-conflicting instructions, we say that S and S’ are ..

conflict serializable

conflict equivalent

conflict serializability

conflict

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A schedule S that conflict equivalent to a serial schedule is called ..

conflict serializable

conflict equivalent

conflict serializability

conflict

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Examine the following schedules.

Schedule 3 is conflict serializable.

True

False

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Examine the following schedule.

The schedule is not conflict serializable.

True

False

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