IOT Practice Set 2

1. The standard ports of MQTT are __________.

SSL

I2C

TCP/IP

USART

2. How many messages will HTTP send per hour?

1,708

3,628

263,314

160,278

3. How many messages will HQTTP send in 1024?

256

240

514

All

4. How many types of message formats are there in the HTTP protocol?

4 types

5 types

3 types

2 types

5. Does HTTP have pipelining?

True

False

6. Which type of electronic document has public-key?

PAN

Digital Certificates

Biometrics

7. Which of the following is not the correct way to secure the communication layer?

Cloud initiated communication

TLS/SSL

IPS

Firewall

8. The ............ hack, is one of the most famous IoT security attacks?

Mirai botnet

Cipher

Stuxnet

None of the above

9. Common words and passwords that can be easily guessed such as "password" or "123456789" should be avoided.

True

False

10. Always use a strong encryption method like WPA2 when setting up Wi-Fi network access.

True

False

11. ARM7 has in-built debugging device?

True

False

12. The analog signal in is .

Continuous, frequency

Continuous, time

Discrete, frequency

Discrete, time

13. Sample and hold circuit is a _______ circuit.

Digital device

Analog device

Both analog and digital

Neither analog nor digital

14. To avoid aliasing we use a __________ filter.

Digital filter

Anti-aliasing filter

Aliasing filter

Analog filter

15. Does HomePod allow voice control?

True

False

16. Sonos is a system that uses ________ wireless speakers.

Wi-Fi

Bluetooth

Hifi

Zigbee

17. What is the standard port number of MQTT?

8883

1883

8888

8000

18. Which interface does the fingerprint sensor use?

CoAP interface

I2P interface

UART interface

SPI interface

19. Which of the following protocols is used by USART?

RS32

4RS85

RS232C

All of the these

20. What is the full form of HDLC?

Higher Data Level Communication

Higher Data Link Communication

High-level Data Link Control

High Data Level Control

21. What is another name for I2C?

Signal wire interface

UART

Two wire interfaces

USART

22. Secure digital card application uses which of the following protocols?

XMPP

HTTPS

MQTT

SPI

23. What does MOSI mean?

MOSI is a network line.

MOSI is a clock signal that sends the clock signals from master to slave.

MOSI is a data line that sends the data from master to slave.

None of the these

24. What is the range of z-wave?

30 to 100 m

300 to 1000 m

100 to 1000 m

Only 10 m

25. Which of the following topology is used for ZigBee Smart Energy?

Bus Topology

Ring Topology

Star Topology

Any Topology

IOT Practice Set 2

IOT Practice Set 2

1. The standard ports of MQTT are __________.

2. How many messages will HTTP send per hour?

3. How many messages will HQTTP send in 1024?

4. How many types of message formats are there in the HTTP protocol?

5. Does HTTP have pipelining?

6. Which type of electronic document has public-key?

7. Which of the following is not the correct way to secure the communication layer?

8. The ............ hack, is one of the most famous IoT security attacks?

9. Common words and passwords that can be easily guessed such as "password" or "123456789" should be avoided.

10. Always use a strong encryption method like WPA2 when setting up Wi-Fi network access.

11. ARM7 has in-built debugging device?

12. The analog signal in __________ is __________.

13. Sample and hold circuit is a _______ circuit.

14. To avoid aliasing we use a __________ filter.

15. Does HomePod allow voice control?

16. Sonos is a system that uses ________ wireless speakers.

17. What is the standard port number of MQTT?

18. Which interface does the fingerprint sensor use?

19. Which of the following protocols is used by USART?

20. What is the full form of HDLC?

21. What is another name for I2C?

22. Secure digital card application uses which of the following protocols?

23. What does MOSI mean?

24. What is the range of z-wave?

25. Which of the following topology is used for ZigBee Smart Energy?

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12. The analog signal in is .