Adesigner has proposed the use of multiple disk arms to greatly improve the response time of a disk subsystem.Discuss the advantages and disadvantages of such a scheme.
What will be an ideal response?
The problem is cost.The moving-armassembly is expensive. It may simply be cheaper
to buy additional disks. The advantages are clear.While one or more heads are reading or
writing, the others may be seeking in parallel with the accessing; this will enable the next data
that is to be accessed to be available sooner. Also, when accessing a cylinder with many
requests pending, all the heads may access the same cylinder, thus greatly reducing latency
times.
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When implementing a method, use the class’s set and get methods to access the class’s ________ data.
a. public. b. private. c. protected. d. All of the above.
If a bubble sort arranges a list of names in alphabetical order, from A to Z, the sort is __________ (ascending/descending).
Fill in the blank(s) with correct word
When using the ____________________ tool, you can change the shield color and opacity of the area outside the crop using the Color and Opacity settings on the Options bar.
Fill in the blank(s) with the appropriate word(s).
The ________ action is used to put the focus on a specified database objects so that an action can be applied to that object
Fill in the blank(s) with correct word