Periodic functional tests are typically performed on alarm systems at what cadence?

• A. Monthly
• B. Weekly
• C. Semi-annually
• D. Biennially

Answer: (C)

Periodic functional tests check that the alarm system will actually perform its intended actions when an event occurs and that those actions are properly transmitted to the monitoring service. The usual cadence for this kind of test is every six months. This semi-annual schedule provides a good balance: it regularly catches developing issues with sensors, the control panel, batteries, and the communication path without imposing excessive cost or downtime. Testing more often, like monthly or weekly, tends to be unnecessary and costly, while testing less frequently, such as biennially, risks missing deteriorations or failures. During the test, you verify that triggers are detected, the panel records the event, the siren and indicators operate, and the monitoring station receives the alert.