IOT online test focuses on “Communication with IOT Devices with Thoughts”.
1. API’s are the inter connector.
a) True
b) False
Answer: a
Clarification: API’s are inter connectors which provide the interface between the global network and the things.
2. Without ___________ IoT devices can easily lead to catastrophe.
a) Software
b) Management system
c) Cloud
d) Devices
Answer: b
Clarification: API’s are the fundamental enabler of the Internet of Things but without management system, IoT devices can easily lead to catastrophe.
3. Management is set of _________
a) Technologies
b) Processes
c) Devices
d) Technologies and Processes
Answer: d
Clarification: Management is a set of technologies and processes fpr creating, managing, securing, analyzing and scaling the API’s from IoT connected devices.
4. Does the API allow the devices to talk.
a) True
b) False
Answer: a
Clarification: The API’s allow devices to talk to each other in a consistent and structured way that makes it really easy to get them to communicate.
5. API management system creates __________ identity.
a) Secure
b) Friendly
c) Robust
d) Secure and friendly
Answer: d
Clarification: API management system creates a secure user friendly identity. It ensures secure connection to devices across mobile and IoT environment.
6. Web applications support ___________ API.
a) RESTful
b) RESful
c) Class
d) Lua
Answer: a
Clarification: Most web applications support RESTful API which relay in HTTP method. The open source swagger framework helps to design and maintain API’s.
7. _________ helps in design and maintain of API.
a) Lua
b) Open source swagger
c) HTTP
d) Lua and HTTP
Answer: b
Clarification: Most web applications support RESTful API which relay in HTTP method. The open source swagger framework helps to design and maintain API’s.
8. WiFi uses how much frequency?
a) 2.2GHz
b) 3GHz
c) 3.5GHz
d) 2.4GHz
Answer: d
Clarification: WiFi is a local wireless technology that uses 2.4GHz ultra high frequency or 5 GHz super high frequency radio waves.
9. Bluetooth will transmit the data over the frequency band _________
a) 2.4 to 2.7 GHz
b) 2.4 to 3 GHz
c) 2.4 to 2.485 GHz
d) 2.4 to 2.6 GHz
Answer: c
Clarification: Bluetooth technology allows for personal data networks. It transmits data over the frequency band between 2.4 and 2.485 GHz.
10. Bluetooth operates at short distances.
a) True
b) False
Answer: a
Clarification: Bluetooth operates over short distances than WiFi and requires less power to operate. We can pair devices like phone, smart watches, headsets, speakers, etc.,.
11. Bluetooth will drain battery life.
a) True
b) False
Answer: a
Clarification: Even with limited range, early Bluetooth implementations were a big drain on battery life.
12. Which bluetooth version enables low energy?
a) Bluetooth 3.0
b) Bluetooth 4.0
c) Bluetooth 2.0
d) Bluetooth 1.0
Answer: c
Clarification: With the development of bluetooth 4.0 became the ability to implement low energy features that conserve power more effectively.
13. __________ is the brainchild of ARM.
a) Zigbee
b) WiFi
c) Bluetooth
d) Thread
Answer: d
Clarification: The brainchild of an alliance between Nest, Samsung, ARM and a few other companies is Thread. Thread aims to anticipate the needs of the Internet pf Things.
14. Thread would be able to support __________ devices.
a) 256 Devices
b) 300 Devices
c) 125 Devices
d) 250 Devices
Answer: d
Clarification: Based on the current specification, thread would be able to support a network of up to 250 devices. Every house could be its own network, meaning your home could have up to 250 integrated devices interacting with you on a daily basis.
15. Thread would allow _________ networks.
a) Mesh
b) Node
c) Mesh and node
d) Either mesh or node
Answer: a
Clarification: Thread would allow for mesh networks. All those devices would be capable of relaying data. Thread hopes to avoid the Zigbee problem.