Explanation:The wait–die scheme is a non-preemptive technique. 5. When transaction Ti requests a data item currently held by Tj , Ti is allowed to wait only if it has a timestamp larger than that of Tj (that is, Ti is younger than Tj ). Otherwise, Tj is rolled back (Tj is wounded by Ti ). This is
A. Wait-die
B. Wait-wound
C. Wound-wait
D. Wait
Answer:A
Explanation:The wait–die scheme is a non-preemptive technique. 5. When transaction Ti requests a data item currently held by Tj , Ti is allowed to wait only if it has a timestamp larger than that of Tj (that is, Ti is younger than Tj ). Otherwise, Tj is rolled back (Tj is wounded by Ti ). This is
A. Wait-die B. Wait-wound C. Wound-wait D. Wait
Explanation:The wound–wait scheme is a preemptive technique. It is a counterpart to the wait–die scheme. 6. The situation where the lock waits only for a specified amount of time for another lock to be released is