Lock and Key Systems (PY104.16) Practice Test 2026 – The Comprehensive All-in-One Guide to Exam Success!

Safeguarding physical keys and spare locks is the central responsibility of a Key Custodian. This role focuses on protecting them from loss, theft, or unauthorized access by keeping keys in a secure location, maintaining an accurate inventory, and strictly controlling who can receive them. The custodian issues keys to authorized personnel, tracks returns, and coordinates rekeying or replacement when keys are lost or departments change. By maintaining tight key control, the organization reduces the risk of unauthorized entry and supports accountability during audits.

Installing locks, auditing access logs, and programming digital access are important security tasks, but they belong to other roles. Lock installation is typically done by a locksmith or facilities staff, auditing logs by security or IT personnel, and digital access programming by IT or access-control administrators.