INE purpose

• A. Encrypts all traffic end-to-end
• B. Provides satellite access
• C. Provides network security and makes it possible to transmit data at one security level (secret) through RF communications
• D. Controls shipboard LANs

Answer: (C)

The main idea is that INE is a cryptographic tool designed to protect Navy RF communications by securing network traffic so it can operate at a single classified level. This means it provides encryption and security for data moving across radio links, allowing SECRET-class information to be transmitted reliably without mixing in other classifications along the path.

Why this fits best: it explicitly describes both the security of the network and the capability to carry data at one security level (SECRET) over RF. That captures INE’s purpose of enabling secure, single-level operation across radio links.

Why the other options aren’t as fitting: encryption of all traffic end-to-end is not a precise description of INE’s role in a multi-hop RF environment; providing satellite access is outside INE’s primary function, which centers on RF network security rather than satellite connectivity; and controlling shipboard LANs refers to internal network management, not the encryption and single-level secure transmission provided by INE.