n the context of database schedules, what is a "serial schedule"?A schedule where transactions are executed concurrentlyA schedule where transactions are executed sequentially, one after the otherA schedule that allows transactions to roll back their changesA schedule that includes both read and write operations

A schedule is called __________ if it is conflict equivalent to a serial schedule.

Given a schedule S for transactions T1 and T2 with set of read and write operations, S: R1(X) R2(X) R2(Y) W2(Y) R1(Y) W1(X). Identify, whether given schedule is equivalent to serial schedule or not?

What does "serializability" in the context of database transactions refer to?Executing transactions sequentially, one after the otherEnsuring that the final result of concurrent transaction execution is equivalent to some serial executionAllowing transactions to be executed concurrently without any restrictionsPerforming transactions in a non-sequential order for improved performance

A schedule S is conflict serializable if it is conflict equivalent to a _________ schedulea)serialb)recoverablec)strictd)non seriale)cascadeless

Which of the following is a characteristic of a non-serial schedule?All transactions are executed sequentiallyTransactions are executed concurrently or interleavedIt provides the highest level of isolationIt always leads to conflicts and data inconsistencies