Final answer:
Serializable Isolation Level in database transactions ensures that the concurrent transactions result in the same state as if they were executed one by one, thus maintaining serializability.
Step-by-step explanation:
The question is about the concept of Isolation Level in the context of database transactions. With Serializable Isolation Level, the interleaved execution of transactions will adhere to our notion of serializability. This level of isolation ensures that the results of concurrently executing transactions are the same as if the transactions had been executed serially, one after the other.
The Serializable Isolation Level prevents a range of concurrency issues such as dirty reads, non-repeatable reads, and phantom reads. It is the highest level of isolation but can also lead to decreased system performance due to increased locking and blocking of resources.