A selection structure consists of a(n) __________ __________ together with one or more blocks of statements.
Fill in the blank(s) with correct word
test condition
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Answer the following statements true (T) or false (F)
1) The page currently stored in a frame may still be replaced even when the page is locked. 2) One way to counter the potential performance problems of a variable-allocation global scope policy is to use page buffering. 3) The PFF policy evaluates the working set of a process at sampling instances based on elapsed virtual time. 4) A precleaning policy writes modified pages before their page frames are needed so that pages can be written out in batches. 5) UNIX is intended to be machine independent; therefore its memory management scheme will vary from one system to the next.
Decision makers are beginning to understand that ________ is not just a byproduct of conducting business, but a critical factor in determining the success or failure of a business.
A) information B) decoration C) hesitation D) frustration
Referential integrity means that for each value in the ________ field of a table, there is a corresponding value in the primary key of the related table
Fill in the blank(s) with correct word
Disk scheduling algorithms are designed to minimize ________ and/or ________, depending on the system’s requests.
a) seek time, rotational latency b) seek latency, rotational time c) request rate, turnaround time d) none of the above