Certified Information Systems Security Professional (CISSP) Practice Exam

What is a common use case for Bluetooth technology?

1. Connecting wired networks

2. Establishing PANs for short-range communication

3. Setting up broadband connections

4. Managing wide-area networks

The correct answer is: Establishing PANs for short-range communication

Bluetooth technology is commonly used for establishing Personal Area Networks (PANs) for short-range communication. It is designed to facilitate wireless communication between devices over short distances, typically up to 100 meters, depending on the Bluetooth class. The primary applications of Bluetooth include connecting devices such as headphones, smartphones, keyboards, mice, and various IoT (Internet of Things) devices. Establishing a PAN allows devices to communicate and share data seamlessly without the need for a wired connection, which enhances convenience and mobility for users. This short-range capability is ideal for scenarios where devices need to interact closely, such as pairing a smartphone with a wireless speaker for audio playback or connecting fitness trackers to mobile apps for tracking health data. In contrast, the other options relate to network types or technologies that Bluetooth does not address. Connecting wired networks involves Ethernet cables, while broadband connections typically utilize technologies like DSL or fiber optics. Managing wide-area networks usually relies on different protocols and setups that accommodate long-distance communication, which falls outside the scope of Bluetooth's intended use.