SIPRNET stands for which network?

• A. Secret Internet Protocol Router Network
• B. Secure Internet Protocol Router Network
• C. Special Internet Protocol Router Network
• D. Secret Internal Protocol Router Network

Answer: (A)

SIPRNET stands for Secret Internet Protocol Router Network. The key idea is recognizing the exact expansion and what it signifies. “Secret” is the classification level of the information this network is designed to carry, not a word meaning “more secure.” “Internet Protocol Router Network” shows that it’s built on IP routing and is a network of interconnected routers that spans multiple sites. This combination means SIPRNET is a DoD network used to transmit SECRET information in a controlled, routed IP environment.

The other options mix up the terminology—using words like “Secure,” “Special,” or “Internal” that aren’t part of the official name—so they don’t reflect the actual acronym. For contrast, note that a separate network for unclassified information is NIPRNET, which uses a different designation and classification.