Explanation: A block that is not permitted to be written back to the disk is called pinned. 6. If transaction Ti gets an explicit lock on the file Fc in exclusive mode, then it has an ­­­­­­__________ on all the records belonging to that file.
A. Explicit lock in exclusive mode
B. Implicit lock in shared mode
C. Explicit lock in shared mode.
D. Implicit lock in exclusive mode
Answer:A
Explanation: A block that is not permitted to be written back to the disk is called pinned. 6. If transaction Ti gets an explicit lock on the file Fc in exclusive mode, then it has an ­­­­­­__________ on all the records belonging to that file.
A. Explicit lock in exclusive mode B. Implicit lock in shared mode C. Explicit lock in shared mode. D. Implicit lock in exclusive mode
Explanation: If transaction Ti gets an explicit lock on the file Fc in exclusive mode, then it has an implicit lock in exclusive mode on all the records belonging to that file. 7. Which refers to a property of computer to run several operation simultaneously and possible as computers await response of each other