HR Operations
What to know
HR operations is the administrative backbone: recordkeeping, HRIS data management, process documentation, compliance reporting, and service delivery. Candidates should understand the employee life cycle (hire-to-retire), the distinction between policies (broad guidance) and procedures (step-by-step instructions), and the role of the HRIS as the system of record. Know the purpose of key metrics-headcount, turnover rate, absenteeism, time-to-fill, cost-per-hire-and how each is calculated. Understand retention schedules and the principle that records should be kept only as long as legally or operationally needed, with access limited to those with a business need.
Traps
Questions often blur efficiency (doing things fast/cheap) with effectiveness (achieving the intended outcome); a metric that improves one can worsen the other. Another trap is confusing a policy with a procedure, or assuming HR owns every people decision-line managers typically own day-to-day execution while HR designs and advises. Watch for questions that ask for the first step in a process; the answer is usually to gather data or clarify the request, not to implement a solution.
Worked example
Turnover rate = (separations ÷ average headcount) × 100. If a department with an average headcount of 40 had 6 voluntary separations in a year, turnover is 15%. If the question asks whether that is "high," note that context (industry, role type) matters-do not label it good or bad without a benchmark.
Rule of thumb
Measure first, then act: any operational improvement question should start with data collection and root-cause analysis.