How are exams scheduled?

Applicants who meet the qualifications are generally scheduled to take the exam once the applications have been through final review, generally a minimum of one week prior to the exam.  The job announcement states the week the exam will occur so applicants are able to plan accordingly when they apply.  Most applicants are scheduled within a single session, however when there is a large number of applicants it may require more than one testing session and applicants will be scheduled in groups.  Also, if the recruitment is open continuously, applicants may be scheduled in groups in the order of the date their applications are received.