Explain some of the areas where résumés are commonly inaccurate.

Some of the most frequent inaccuracies on résumés are inflated job titles and incorrect dates of employment. While these data are easy to fudge, they are also easy to catch in background checks. It is also possible that some of these particular inaccuracies come from careless records kept by job candidates.
If employers do an employment history check, and many do, they will have a complete work history for you. They will be able to spot inaccurate company names and work dates. If you left a company off your résumé, they may wonder why; some may assume your performance at that company was not satisfactory.
Other areas where résumés are commonly inaccurate are the following:
Degrees: many people conveniently forget they were a few hours short of a degree.
GPAs: inflating one's grade point seems to be a big temptation.
Honors: people list memberships in fake honoraries, or fake memberships in real honoraries.
Fake employers
Job duties: many people inflate them.
Salary increases
Fake addresses: people create these to have the "local" advantage.
Fake contact information for references: this information frequently leads to family members or friends who will give fake referrals.
Technical abilities
Language proficiency