Match the following four Datediff terms with their appropriate description:
I. date1 A. Number 1 through 7 representing the day of the week
II. date2 B. The earlier of two valid dates
III. [firstweekday] C. Number 1,2, or 3 representing the first week of the year
IV. [firstweek] D. The later of two valid dates
B, D, A, C
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The ________ command changes are the value of a variable.
Fill in the blank(s) with the appropriate word(s).
Why is a FIFO page-replacement strategy impractical for most systems?
a) It replaces the page that has been in main memory the shortest amount of time. b) It could lead to a decreased page-fault rate. c) It could accidentally replace a heavily used page, such as one belonging to a text editor shared by several users. d) The strategy’s implementation incurs substantial overhead.
In the accompanying figure, item 6 indicates the ____.
A. template B. frame C. document window D. preview
DNS information is only cached on DNS servers
a. true b. false