What occurrence should an administrator report if two transactions are waiting for each other to release resources?

• A. Timeout
• B. Concurrency issue
• C. Deadlock
• D. Data corruption

Answer: (C)

A situation where two transactions are waiting for each other to release resources is known as a deadlock. In this scenario, each transaction is holding a resource that the other needs to proceed, leading to a standstill. Deadlocks can negatively impact system performance and require intervention to resolve.

Understanding this concept is crucial for database administrators and systems analysts, as it emphasizes the importance of transaction management and resource allocation in database environments. Identifying and reporting a deadlock allows administrators to implement strategies, such as deadlock detection algorithms or timeout mechanisms, to prevent or resolve these situations efficiently.

Timeout refers to a scenario where a transaction or process exceeds a predetermined time limit and is aborted to release resources. However, this does not accurately describe the specific situation where two transactions are mutually waiting on each other.

A concurrency issue relates to the challenges that arise when multiple transactions are executed simultaneously, potentially leading to inconsistent data. While related, it does not specifically capture the essence of the situation described in the question.

Data corruption involves the unintended alteration of data, which is not directly related to transactions waiting on resources. Reporting a deadlock is focused on resource contention rather than the integrity of data itself.

Thus, reporting a deadlock is important because it allows organizations to maintain efficient transaction