The problem of concurrency control is more complex in a distributed database.

Solution (By Examveda Team)

This option correctly affirms the statement provided in the question. In a distributed database system, concurrency control is more complex due to several factors:

Distributed Transactions: Transactions may involve accessing or modifying data stored on multiple nodes, requiring coordination and synchronization across distributed sites.
Network Latency: Network delays and communication overhead can impact the performance of distributed transactions and introduce challenges in ensuring timely access to shared resources.
Global Consistency: Maintaining global consistency across distributed nodes while allowing concurrent access to data requires sophisticated concurrency control mechanisms and coordination protocols.
Overall, the distributed nature of the database system introduces additional complexities in managing concurrency and ensuring data integrity compared to a centralized database environment.

Option B: False
This option contradicts the statement provided in the question. Concurrency control in a distributed database is indeed more complex due to the distributed nature of the system and the challenges associated with coordinating concurrent access to shared resources across multiple nodes. Unlike a centralized database, a distributed database environment requires additional mechanisms and protocols to manage concurrency and maintain data consistency in a distributed setting.

Therefore, in response to the question, the correct option is True (Option A).