Database Management Systems Mcqs

Page No. 75

The failure occurred sufficiently early during the transfer that the destination block remains intact.


aPartial Failure


bTotal failure


cSuccessful completion


dData transfer failure


View Answer Partial Failure

Which kind of failure loses its data in head crash or failure during a transfer operation.


aTransaction failure


bSystem crash


cDisk failure


dAll of the mentioned


View Answer Disk failure

The assumption that hardware errors and bugs in the software bring the system to a halt, but do not corrupt the nonvolatile storage contents, is known as the


aStop assumption


bFail assumption


cHalt assumption


dFail-stop assumption


View Answer Fail-stop assumption

The transaction can no longer continue with its normal execution because of some internal condition, such as bad input, data not found, overflow, or resource limit exceeded. This is


aRead error


bBoot error


cLogical error


dSystem error


View Answer Logical error

The system has entered an undesirable state (for example, deadlock), as a result of which a transaction cannot continue with its normal execution. This is


aRead error


bBoot error


cLogical error


dSystem error


View Answer Logical error

Which of the following belongs to transaction failure


aRead error


bBoot error


cLogical error


dAll of the mentioned


View Answer Logical error

Which one of the following is a failure to a system


aBoot crash


bRead failure


cTransaction failure


dAll of the mentioned


View Answer Transaction failure

The recovery scheme must also provide


aHigh availability


bLow availability


cHigh reliability


dHigh durability


View Answer High availability

A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.


aReferential


bReferencing


cReferencing


dPrimary


View Answer Referential

The ______ is the one in which the primary key of one relation is used as a normal attribute in another relation.


aReferential relation


bReferencing relation


cReferenced relation


dReferred relation


View Answer Referenced relation

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