Question

why do iot devices pose a greater security risk than other computing devices on a network?
most iot devices do not receive frequent software updates
most iot devices do not require an internet connection and are unable to receive new updates
iot devices cannot function on an isolated network with only an internet connection
iot devices require unencrypted wireless connections

Explanation:

IoT devices often lack frequent software updates. This means security - vulnerabilities may not be patched in a timely manner, increasing the risk. Many IoT devices do require an internet connection (so the option about not needing it is wrong), can function on various network set - ups including those with internet connection, and not all require unencrypted wireless connections.

Answer:

Most IoT devices do not receive frequent software updates