Explain why stable storage cannot really be implemented. How would you simulate table storage?
What will be an ideal response?
Information residing on stable storage is never lost. Theoretically, this cannot be guaranteed. To
implement an approximation of stable storage, we need to replicate information in several
nonvolatile storage media with independent failure modes and update the information in a
controlled manner. Although a large number of copies reduces the probability of a failure, it is
usually reasonable to simulate stable storage with only two copies.
Block transfer can result in: successful completion, partial failure (destination block has incorrect
information) and total failure (destination blocks not written to).
If a data transfer occurs, the system must detect it and recover the block to a consistent state. To
do so, the system maintains two physical blocks for each logical database block, written as
follows:
1. Write information to first physical block.
2. When first is successfully complete, write same information to second physical block.
3. Output is complete, only after the second write successfully completes.
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Which of the following statements will NOT display the number 5 in the text box?
(A) txtBox.Text = 5 (B) txtBox.Text = "5" (C) txtBox.Text = CStr("5") (D) txtBox.Text = CStr(5)
Critical Thinking QuestionsCase 3-1 The colors in the first image look washed out when the slide is projected on a screen. How can you improve the image's appearance by making its colors more intense? a. change the transparencyc. change the color styleb. change the color saturationd. change the slide background color
What will be an ideal response?
It is illegal to remove DRM from a protected file
Indicate whether the statement is true or false
Chronic stress is short-term stress caused by your body's immediate reaction to astressor
Indicate whether the statement is true or false