Which term corresponds to discuss communications security (114.3)?

• A. Phonetic alphabet
• B. Cryptosecurity
• C. SINCGARS
• D. HF propagation

Answer: (B)

The concept being tested is the protection of the content and integrity of military communications. Cryptosecurity is the term that covers safeguarding transmissions from interception, decipherment, tampering, or impersonation, including encryption, crypto devices, and key management procedures. This is why it’s the best fit for “discuss communications security,” since it denotes the overall discipline responsible for keeping communications confidential and secure.

The other options don’t capture that security-focused scope. The phonetic alphabet is about spelling words clearly over the radio so they’re understood, not about protecting the content. SINCGARS refers to a specific secure radio system used to implement secure communications, not the general concept of protecting communications. HF propagation deals with how radio waves travel and behave, which is a technical aspect of the medium rather than security.