Which of the following is a security feature of Global Systems for Mobile Communications (GSM)?

The correct answer is A. It uses a Subscriber Identity Module (SIM) for authentication.. A security feature of Global Systems for Mobile Communications (GSM) is that it uses a Subscriber Identity Module (SIM) for authentication. A SIM is a smart card that contains the subscriber's identity, phone number, network information, and encryption keys. The SIM is inserted i

Submitted by obi.ng· Mar 5, 2026Identity and Access Management

Question

Which of the following is a security feature of Global Systems for Mobile Communications (GSM)?

Options

AIt uses a Subscriber Identity Module (SIM) for authentication.
BIt uses encrypting techniques for all communications.
CThe radio spectrum is divided with multiple frequency carriers.
DThe signal is difficult to read as it provides end-to-end encryption.

How the community answered

(23 responses)

A
91% (21)
B
4% (1)
D
4% (1)

Explanation

A security feature of Global Systems for Mobile Communications (GSM) is that it uses a Subscriber Identity Module (SIM) for authentication. A SIM is a smart card that contains the subscriber's identity, phone number, network information, and encryption keys. The SIM is inserted into the mobile device and communicates with the network to authenticate the subscriber and establish a secure connection. The SIM also stores the subscriber's contacts, messages, and preferences. The SIM provides security by preventing unauthorized access to the subscriber's account and data, and by allowing the subscriber to easily switch devices without losing their

Topics

#GSM security#SIM authentication#mobile security#cellular technology

Community Discussion

No community discussion yet for this question.

Full CISSP Practice