Relational databases can be thought of as ________.
a) rows
b) columns
c) tables of rows and columns
d) three-dimensional arrays
c) tables of rows and columns
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Which of the following statements is false?
a. Most operating systems support timeslicing, which enables threads of equal priority to share a processor. b. Without timeslicing, each thread in a set of equal-priority threads runs to completion before other threads of equal priority get a chance to execute. c. With timeslicing, even if a thread has not finished executing when its quantum expires, the processor is taken away from the thread and given to the next thread of equal priority, if one is available. d. An operating system’s thread scheduler determines which thread runs next.
In a producer/consumer relationship, when a consumer finds the buffer empty or finds that the previous data has already been read, the consumer should call __________.
a. lock b. signal c. sleep d. await.
How has the focus of design changed over the years?
What will be an ideal response?
Two computers and a reference machine produce the following results.
Present the results in a normalized form and provide benchmarks for machines A and B.