Database Systems MCQs - Chapter 3

Concurrency Control Multiple Choice Questions (MCQs) PDF Download - 9

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Concurrency Control Questions & Answers PDF Download: MCQ Quiz 9

MCQ 41: A protocol that requires each transaction to be executed in two or three different phases in its lifetime, is called

Recovery protocol
Intention mode protocol
Exclusive mode protocol
Validation protocol

MCQ 42: Multiversion two-phase locking, requires transactions to be declared as

Read-only
Update
Write-only
Both A and B

MCQ 43: Graph-based locking protocols impose restrictions on the

Order of execution
Order of access
Order of evaluation
Order of cascading

MCQ 44: The two-phase locking protocol ensures

No Delays
Unlocking
Validation
Serializability

MCQ 45: The deadlock prevention scheme named wait-die is a

Nonpreemptive technique
Preemptive technique
Linear preemptive technique
Non-linear preemptive technique

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