Near field communication (NFC)
Proprietary home automation networking • Internet of Things (IoT) • Control lights, locks, garage doors, etc. Wireless mesh networking • Nodes can hop through other nodes on the way to the destination Uses the ISM band • Industrial, Scientific, and Medical • 900 MHz frequencies in the US • No conflicts with 802.11
Alternate answers seen on other CBTs
The same question shows up worded slightly differently across CBT versions. Here are the other answer variants we've indexed.
Provide communication over a short distance that is intended for use with devices that are owned and operated by a single user
Comptia A+ Core 1 Study Guide →A set of standards primarily for smartphones and smart cards that can be used to establish communication between devices in close proximity.
Comptia Exam Objectives Security+ →A short‐range communication technology that lets users hold their phone next to someone else's and transfer data or bump their phone to a receiver at a store to pay for a purchase.
Comptia Fundamentals Study Guide →A 24-bit value used in WEP that changes each time a packet is encrypted.
Comptia Sec Plus Objectives →Confirm the authenticity of data. Digital signature provides both integrity and non-repudiation.
Comptia Sec+ 601 Exam Objectives →