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The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to ______
As disks have relatively low transfer rates and relatively high latency rates, disk schedulers must reduce latency times to ___________
Consider the following statements regarding life time of any normally terminating process in an operating system. (I) The process must be in RUNNING state at least once during its execution. (II) The process must be in RUNNING state at least twice during its execution. (III) The process must be in WAITING state at least once during its execution. (IV) The process must be in READY state at least once during its execution. Which of the above statements are correct?
Which of the following statements are true? (A) An algorithm may produce no output (B) An algorithm expressed in a programming language is called a computer program. (C) An algorithm is expressed in a graphical form known as a flowchart (D) An algorithm can have an infinite sequence of instructions. Choose the correct answer from the options given below:
In a class text, to the question, find out 23% of 200, two students answered in following ways:  Student A: 23% of 200 = 23% of (100 + 100) = 23 + 23 = (20 + 20) + (3 + 3) = 46  Student B: 23% of 200 = 200 × \(\frac{23}{100}\) = 2 × 23 = 46 Which of the following statements is the most appropriate in the given context? 1. Since student B has used the standard algorithm, teacher gives full marks to student B and zero to student A 2. Teacher gives full marks to both the students as they have attempted the question using their own algorithms. Both formal and informal algorithms are integral to solving problems in mathematics. 3. Teacher gives zero marks to student A and directs him to redo the question using the algorithm taught in the Class 4. Teacher accepts both the responses but directed student A to refrain from using informal algorithm 
An operating system uses shortest remaining time (SRT) scheduling algorithm. Consider the arrival times and execution time for the following processes: Proces Arrival Time Execution Time P1 0 20 P2 15 25 P3 30 10 P4 45 15 What is total waiting time for process P2?
The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.   P: Modern medicine has scored significant victories against both, and the major causes of ill health and death are now the chronic degenerative diseases, such as coronary artery disease, arthritis, osteoporosis, Alzheimer's, macular degeneration, cataract and cancer. Q: It follows that the majority of apparently healthy people are pre-ill. R: Throughout human history the leading causes of death have been infection and trauma. S: These have a long latency period before symptoms appear and a diagnosis is made.
Given below are some famous algorithms and some algorithm design paradigms Algorithms Design Paradigm  1. Dijkstra's shortest path algorithms  (a) Greedy design  2. Floyd-Warshall's all-pair-shortest path algorithms  (b) Divide and conquer  3. Kruskal's minimum spanning tree algorithm  (c) Dynamic programming  4. Merge Sort algorithm     Which of the following correspondence is correct?
Let Xij =I { zi is compared to zj in quick sort algorithm} is an indicator variable, and zi is the ith smallest number. Which of the following sequence of the numbers give the X2,5 = 1? Note: Assume that there is a divide and conquer quick sort algorithm and in partition algorithm the first element of the lists is taken as pivot-element.
Which of the following query returns the average latency for the most recent sessions?