In uni-processor scheduling :A : Turnaround time, B : Response time, 1: A time interval between the submission of a process and its completion. 2: For interactive process, it is a time from the submission of a request until the response begins to received. 3: It includes actual execution time plus time spent waiting for resources.

Related MCQs

• In multi processor scheduling; A: Gang scheduling, B: Dynamic scheduling, C: Dedicated processor management.; 1- The number of threads in a process can be altered during the course of execution. 2- This provides implicit scheduling defined by the assignment of threads to processors, 3- It is applied to the simultaneous scheduling of threads that make up a single process.
• Match the following in RAID scheme : A- Parallel access array, B-Independent access array, 1- All member disks participate in the execution of every I/O request. 2- Each member disk participates separately in the execution of every I/O request. 3- Here spindles of the individual drives are synchronized so that each disk head is in the same position on each disk at any given time.
• If normalized turnaround time of different process are given. Then Highest response ratio next policy in uni- processor scheduling policy selects.
• If normalized turnaround time of different process are given. Then Highest response ratio next policy in uni processor scheduling policy selects
• Which combination of the following features will suffice to characterize an OS as a multi programmed OS ? (i) More than one program may be loaded into main memory at the same time for execution. (ii) If a program waits for certain events such as I/O, another program is immediately scheduled for execution. (iii) If the execution of a program terminates, another program is immediately scheduled for execution.
• A disk scheduling algorithm in an operating system causes the disk arm to seek back and forth access the disc surface servicing all request in its path, this is a
• In disk scheduling, the shortest service time first policy selects the disk request that
• In shortest service time first policy, applied on disk scheduling, the disk request is selected
• Turnaround time is defined as
• The normalized turnaround time is