File: 9-27C6

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9-27C6 C
 Which of the following best describes a Subscriber Identity Module (SIM)?
A. A removable device to implement Inmarsat digital rights management (DRM).
B. A non-volatile device to implement high-speed data and other advanced terminal features.
C. An integrated circuit device that securely stores the Inmarsat identity and an authentication key.
D. A Read/Write data device that uses x.25 protocol to limit terminal access to authorized users.