DEX IOT EXAMS 2026 COMPLETE QUESTIONS AND ANSWERS GRADE A

DEX IOT EXAMS 2026 COMPLETE QUESTIONS
AND ANSWERS GRADE A


◉ (True or False)


Gateways can be configured to perform pre-processing of the
collected data from thousands of sensors locally before transmitting
it to the next stage.


A. True


B. False. Answer: A


◉ IoT gateways perform several critical functions such as: (Which
one is wrong).


A. Device connectivity


B. Protocol translation


C. Improving networks

,D.Data filtering and processing, security. Answer: C


◉ An IoT gateway device bridges the communication gap between:
(Which one is wrong).


A. end users


B. IoT devices


C. Sensors


D. cloud. Answer: A


◉ Before purchasing one gateway device you should consider:
(Which one is wrong).


A. Network Security


B. Uptime


C. Power

,D. Downtime. Answer: B


◉ Which one isn't key core principles of security for IoT gateway.


A. Strategy


B. Confidentiality


C. integrity


D. authentication. Answer: A


◉ Which device is often to be attacked in IoT system.


A. Sensor


B.Actuator


C. Gateway


D. Cloud Server. Answer: C

, ◉ The maximum number of IPv4 address is:


A. 2^32


B. 2^64


C. 2^128


D. 2^256. Answer: A


◉ The maximum number of IPv6 address is:


A. 2^32


B. 2^64


C. 2^128


D. 2^256. Answer: C


◉ How many byte an IPv4 address has: