Class 12 Computer Science · Chapter 8 · Test 2
IoT Cloud and Blockchain
40 MCQs
40 questions · 35 min · 40 marks
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Sample questions
The first 5 of 40. Try each one, then tap to see the answer.
Question 1
The Internet of Things refers to physical devices connected through the internet that can:
- ADisplay data on screens
- BShare and act on data
- CStore files offline
- DReplace servers
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Answer: B
IoT devices share and act on data.
Question 2
The Internet of Things (IoT) is mainly used to:
- AAllow devices to communicate automatically
- BStore documents securely
- CManage Internet connections
- DCreate digital art
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Answer: A
IoT lets connected devices communicate and act automatically.
Question 3
IoT devices often include:
- APrinters and scanners
- BKeyboards and monitors
- CSensors and processors and communication hardware
- DRouters and modems
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Answer: C
IoT devices contain sensors and processors and communication hardware.
Question 4
IoT connects everyday objects such as lights and thermostats so they can be:
- APrinted
- BRecycled
- CReplaced
- DMonitored and controlled remotely
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Answer: D
Objects can be monitored and controlled remotely.
Question 5
IoT devices communicate through:
- AUSB and HDMI
- BWi-Fi and Bluetooth and cellular networks
- CCoaxial and parallel cables
- DInfrared and serial ports
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Answer: B
IoT uses Wi-Fi and Bluetooth and cellular networks.
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