what is "smoke testing"? **
Smoke testing is the preliminary check of the software after a build and before a release.
According to Wikipedia, the term 'smoke testing” likely originated in the plumbing industry.
Plumbers usually would use smoke to test for leaks and cracks in pipe systems.
what is wildcard? **
In computing, a wildcard refers to a character that can be substituted for zero or more characters in a string.
Some examples of using wildcard characters in queries are the following: the wildcard query ' f? rm ' will match all of the words 'farm', 'firm', and 'form' - any word that begins with an 'f', is followed by any other character, and ends with the characters 'rm'.
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