A ________ is a mutual exclusion mechanism in which a process executes in an infinite loop waiting for the value of a lock variable to indicate availability.
Fill in the blank(s) with the appropriate word(s).
spinlock
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When you run a database query to find data in related tables, only records that have matching values on both sides of the relationship are found. Most of the time this result will be adequate, but other times you may want to control which records will be displayed. What kind of query allows you to control the records you see, and how did you use this type of query to help answer the manager's
questions for Jasmine? What will be an ideal response?
Write a crafty script called ghoul that is difficult to kill; when it receives a SIGINT (from a Control-C), it should create a copy of itself before dying. Thus, every time an unwary user tries to kill a ghoul, another ghoul is created to take its place! Of course, ghoul can still be killed by a SIGKILL (-9) signal.
What will be an ideal response?