Department of Defense (DoD) Information Security Practice Test 2025 – The All-in-One Guide to Exam Success!

Confidential information must be sent using secure mail services to ensure that it is protected against unauthorized access during transit. The correct answer encompasses a variety of secure mailing options: DCS (Defense Courier Service), First Class Mail, Registered Mail, and Certified Mail.

DCS is specifically designed for the transportation of classified and sensitive materials within the Department of Defense. It provides a high level of security and is monitored throughout the delivery process. First Class Mail may also include options for tracking and delivery confirmation, making it suitable for transmitting Confidential information, assuming that safeguards are in place.

Registered Mail offers added security features, including a chain of custody, tracking, and proof of delivery, which are crucial for handling sensitive documents. Certified Mail provides confirmation of delivery, although it may not have the same level of security as Registered Mail.

Together, these options ensure that Confidential information is handled properly during transportation, thus mitigating the risk of interception or disclosure.