Based on my experiences about 10% of resumes are complete fiction, 30% greatly exaggerated, and only top specialists in a highest pay bracket could be expected to be truthful. 

That is, for any kind of entry or mid-career position making up stuff on your resume is commonplace. Sometimes this is to get past unreasonable salary bands (e.g. $35K salary for 10+ years of C) and sometimes it is to satisfy unreasonable demands ( e.g. 20+ years of C/C++/Objective C/Java/Lisp/Fortran/Cobol/R/Python/PHP/Delphi/Perl) and sometimes it to just get into the door at the start of the career (e.g. good dev stuck working QA).