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IOT Practice Set 2
IOT Practice Set 1
IOT Practice Set 2
IOT Practice Set 3
IOT Practice Set 4
IOT Practice Set 5
IOT Practice Set 6
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?
Pin
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
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