10 Questions
What is the primary goal of timestamp-based concurrency control algorithms?
To ensure that transactions commit in the order of their timestamps
What happens when two transactions, Ti and Tj, try to write the same data item simultaneously?
Tj's commit phase is delayed until Ti has committed
What is the purpose of the access rule in timestamp-based ordering?
To ensure that older transactions commit before younger ones
What is the benefit of using timestamp-based concurrency control algorithms?
Ensured serializability and transaction isolation
What is the role of timestamps in concurrency control?
To prioritize transactions based on their start time
What is the effect of Rule 3 on transaction Ti and Tj?
Ti's commit phase cannot overlap with Tj's commit phase
What is the consequence of violating the access rule in timestamp-based ordering?
The equivalent serial schedule is disrupted
What is the primary difference between optimistic and pessimistic concurrency control?
Optimistic control assumes conflicts are rare, while pessimistic control assumes conflicts are common
Which of the following is NOT a type of timestamp-based concurrency control algorithm?
Two-Phase Locking Protocol
What is the primary advantage of using timestamp-based concurrency control algorithms?
Ensured serializability and transaction isolation
Learn about the concept of locking in distributed systems, its role in maintaining data integrity, and how it prevents the execution of the same task twice. Understand locking-based concurrency control protocols and their importance in distributed systems.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
