Final answer:
Gloria will be eligible to take the PHR certification exam after one year of professional exempt-level HR experience, following the receipt of her bachelor's degree in HR.
Step-by-step explanation:
The earliest time that Gloria will be eligible to take the PHR certification exam, assuming she has just earned her bachelor's degree in HR and has started her first professional exempt-level HR job, is after she accumulates one year of professional HR experience. The requirements for the Professional in Human Resources (PHR) certification state that a candidate with a bachelor's degree needs one year of professional HR experience, whereas a candidate without a bachelor's degree would require more experience.