ITPEC IP April 2022 Question 34
ITPEC IP April 2022 — Question 34 of 100
LPWA provides long-range wireless communication with very low power consumption and relatively low data rates. Low Power Wide Area technologies are designed for small, infrequent IoT messages rather than high-speed media. Sensors can therefore operate on batteries for years while communicating over distances of several kilometers.
Answer (b)
Why not others:
- (a) describes machine learning
- (c) describes blockchain and its hash-linked ledger structure
- (d) describes a wireless LAN security method such as WPA rather than a wide-area IoT network
Key rule: LPWA trades communication speed for wide coverage, low power use, long battery life, and support for many IoT devices.
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