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The Shortest Job First (SJF) scheduling algorithm is specifically designed to minimize the average waiting time of processes in the CPU scheduling context. By selecting the process with the smallest execution time first, SJF reduces the amount of time other processes need to wait, thereby minimizing the average waiting time. This approach is based on the premise that shorter processes will complete more quickly, allowing subsequent processes to start sooner and reducing the overall waiting time. Why Other Options are Wrong: a) Round Robin (RR) scheduling allocates fixed time slices to each process, which can lead to higher average waiting time due to context switching, especially for short jobs. c) First-Come-First-Served (FCFS) scheduling does not prioritize shorter jobs, which can lead to the "convoy effect" where long processes delay the execution of shorter ones, resulting in higher average waiting time. d) Priority Scheduling may reduce waiting time for high-priority processes but can lead to starvation of low-priority processes and does not inherently minimize average waiting time. e) Multilevel Queue Scheduling handles processes based on different priority queues but does not specifically focus on minimizing average waiting time across all queues.
In a mixture of milk & water, 20 litres water is mixed due to which ratio changes from 5 : 4 to 1 : 4. Find initial quantity of mixture. (in litres)
Sugar costing Rs. 140/kg is mixed with sugar costing Rs. 100/kg in a ratio of 6:4, respectively. Calculate the price per kg of th...
A mixture of milk and water measures 60 litres. It contains 10% water. How much water should be added to it, so that the water may be 25%?
Two types of pulses, priced at ₹80 per kg and ₹90 per kg, are mixed in a ratio such that the resulting mixture is sold at ₹107.5 per kg with a 25%...
A container contains Alcohol and water in ratio of 3:1 and Capacity of Container is 40 lit. If half of the Container is replaced with 15 lit of water th...
In a mixture, the quantity of sugar is 25% of the quantity of water. On removing 70 litres mixture and adding 10 litres each of sugar and water, the qua...
In a ‘10Y’ litres of mixture of milk and water, the quantity of milk is 60%. According to which of the following statements the value of ‘Y’ wi...
A container has 120 liters of milk and 'x' liters of water. If 25% of the mixture is removed and then 10 liters of water are added such that the quantit...
An 84-litre mixture contains 75% milk. If 'x' litres of water are added to this mixture, the quantity of milk in the resulting mixture becomes 27 litres...
From a container of Beer, a thief has stolen 25 litres of beer and replaced it with same quantity of water. He again repeated the same process. Thus in...
