The SCAN (Elevator Algorithm) moves the disk arm in one direction, servicing requests in that direction until it reaches the end of the disk, and then reverses direction. While this minimizes seek time by servicing requests in the current direction, it can cause starvation for requests located at the far ends of the disk, particularly if new requests continuously arrive closer to the middle of the disk. This behavior leads to longer wait times for the requests at the extreme ends of the disk. Why Other Options are Incorrect: A) FCFS: FCFS is a simple algorithm that services requests in the order they arrive, without consideration of seek time, and thus avoids starvation but does not minimize seek time. B) SSTF: SSTF selects the closest request to the current position, reducing seek time but also potentially causing starvation for requests far from the current position. D) C-SCAN: C-SCAN operates similarly to SCAN but only moves in one direction, avoiding starvation by providing equal treatment to all disk regions. E) LOOK Scheduling: LOOK is a variant of SCAN that stops moving when there are no more requests in the current direction, reducing the risk of starvation.
Indian Constitution employs the expression 'Proclamation of Emergency' to denote:
Which Article of the Indian Constitution defines a 'Money Bill'?
The National Commission for Scheduled Castes is established by which article of the Constitution?
Which article allow parliament to regulate the right of citizenship by law?
Consider the following statement with reference to the International Council on the Monuments and Sites (ICOSMOS):
1. It is a global inter-govern...
Which of the following is the minimum age to become member of Lok Sabha?
Consider the following statements:
1. In a federation, the powers of the federal and provincial governments are clearly demarcated.
2. In ...
Who was the inaugural Speaker of the Lok Sabha in India?
Under which Article of the Constitution of India can the President take over the administration of a state, in case its constitutional machinery breaks ...
Which of the following states have been the former union territories?
1. Himachal Pradesh
2. Manipur
3. Haryana
4. Tripura