In what circumstances is compaction of secondary storage useful?
What will be an ideal response?
When the disk becomes heavily fragmented, even sequential files will be allocated in
small pieces widely scattered throughout the disk. In applications in which sequential files
need to be processed efficiently, compaction is appropriate.
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Which of the following best describes a rainbow table?
A) A table that contains passwords B) A table that contains usernames C) A table that contains all possible hashes for all possible character combinations D) A table that contains all possible usernames and passwords
Suppose that you design an architecture with the following characteristics
Cost of a non?branch instruction 1 cycle Fraction of instructions that are branches 20% Fraction of branches that are taken 85% Fraction of delay slots that can be filled 50% Cost of an unfilled delay slot 1 cycle For this architecture a. calculate the average number of cycles per instruction b. calculate the improvement (as a percentage) if the fraction of delay slots that are filled can be increased to 95%.
Designers are facilitators and not products or brands unto themselves
Indicate whether the statement is true or false
You can enter color names as ____ values.
A. number B. text C. image D. flash