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WorksheetsInternet of Things
Total questions: 81
Worksheet time: 1hrs 11mins
What is the wavelength of Very High Frequency (VHF)
1 mm - 10mm
10mm-100mm
1m - 10m
1km - 10km
Which letter represents the wavelength?
A
B
C
D
What does letter B represent?
Wavelength
Amplitude
Frequency
What type of antenna is used on most mobile IoT devices?
Tripole
Dipole
Omnipole
Unipole
What is considered optimum total antenna length for mobile wireless devices?
1/4 Wavelength
2x Wavelength
1x Wavelength
1/2 Wavelength
Which of the following antenna will provide the greatest range at line of sight?
Omnidirectional
Bidirectional
Directional
Which of the following has the highest frequency in the electromagnetic spectrum?
Infra-red
X-Rays
Radio Waves
Microwaves
Which of the following statements of Duplex M2M communication is true?
Must alternate between sending and receiving communications
Can send and receive simultaneously in parallel
Which commonly used battery technology is considered to have the highest gravimetric energy density and volumetric energy density?
Lead Acid
Li-ion
Ni-MH
Ni-Cd
Which commonly used battery technology is the most liable to the “memory effect”?
Lead Acid
Li-ion
Ni-MH
Ni-Cd
Which of the following is a commonly used IoT protocol suitable for local range M2M communication?
Bluetooth
Wifi
LoRa
GPS
What does GDPR stand for?
General Data Protection Regulation
Global Data Protection Regulation
Global Data Planetary Regulators
General Data Protection Resources
IoT Networks with a range of 10km covering built up areas are usually categorised as...
PAN
WAN
LAN
MAN
Where do most general purpose wireless LAN networks reside on the wireless spectrum?
2.4Ghz-5Ghz
800Mhz – 4Ghz
350Mhz-575Mhz
7Ghz-14Ghz
_______ are devices that detect and respond to changes in an environment. They’re embedded in smart phones and an integral part of the Internet of Things (IoT).
ZigBee
Wi-Fi
Barcode
RFID
Sensors
What does the Internet of Things platform do?
Deletes the data coming from various devices.
Integrates the data coming from various devices.
Sorts the data coming from various devices.
Internet of Things combines
computer capabilities and data analytics
computer portability and data sorting
computer specifications and data retrieval
What technologies have made IOT possible ?
Connectivity
Artificial Intelligence (AI)
Machine learning
Low cost sensors
IOT stands for?
Internet Of Threats
Internet Of Things
InteroperabilityTest
Inductive Output Tube
Information Operations Team
IoT is built on:
Cloud computing
Networks of data gathering sensors
Both
None
An Internet of Things platform:
provides services for accessing, using, or participating in the Internet
allows for devices and apps to communicate with each other
allows individuals and organizations to make their website accessible
DHT22 is sensor that used to detect temperature and humidity in the environment. DHT22 belongs to ... layer in IoT architecture.
Business
Perception
Analytics
Middleware
Transmission
What is most likely sensor that used by online transportation business (e. g. Gojek, Grab, Uber)?
GPS Module
Temperature and Humidity Sensor
RFID Tag
Barcode Scanner
Passive Infrared Sensor
Are smartphones classed as IoT
True
False
---------------- is a computer system that has computer hardware and software embedded to perform specific tasks
Embryoid system
Embedded system
Environment system
SaaS
software as a program
Software-system
Software
Software-as-a-Service
Network
Which signal goes furthest from the mast?
2G 800Mhz
3G 1800Mz
4G 2100 Mhz
5G 3.3GHz
The I2C protocol belongs to
I/O Interface
Memory Interface
Connectivity
Storage Interface
RJ45 belongs to
I/O interface
Storage Interface
Connectivity
Memory Interface
In order to work, IoTP needs to collect ____________ from the connected devices.
friend requests
data
likes
True or False: Zigbee helps your smart devices communicate with each other.
True
False
When compared to Wi-Fi, Zigbee has:
a LONGER range than Wi-Fi.
a SHORTER range than Wi-Fi.
the same range as Wi-Fi.
Which type of network does Zigbee use?
Mesh Network
Star Network
Moon Network
True or False: Mesh Networks are self-healing.
True
False
Which of the following applies to Zigbee?
Helps create stable networks.
Power-Efficient
Supports multiple devices.
All of the above.
Bluetooth devices are able to transmit signals at ….
Less than 30m
over 30m
Less than 50
Over 50
A similarity between Bluetooth and WiFi is that they both connect devices using radio waves.
True
False
Another name for Bluetooth network is know as ....
Wireless Area Network
Wireless Point Area Network
Wireless Personal Area Network
Wireless Local Area Network
Wireless routers can broadcast radio waves between a range of…
50m – 100m
10m – 30m
30m – 50m
10m – 120m
An area where devices can access the internet using WiFi is called....
WiFi
Hotspot
Hotpoint
Access Point
How many channels available for 2.4Ghz band?
9 channels
10 channels
11 channels
12 channels
How many channels available for a 5GHz band?
25 channels
26 channels
27 channels
28 channels
Which of the following types of wireless protocol would be appropriate for item tracking?
Wi-Fi
Bluetooth
RFID
Z-Wave
My watch displays the current weather downloaded from the internet. My watch is an IOT device.
True
False
An IOT device can most easily be differentiated from a standard computer based on
Computational Performance
Memory Capacity
Interface with the user and the world
Weight/Size
The following trend is NOT related to the growth in IOT technology
Increase in computer monitor size over time
Increase in computer performance over time
Decrease in computer size over time
Decrease in computer cost over time
IOT devices are likely to be more vulnerable to cyber attacks than standard computers
True
False
Which of these security approaches is feasible for most IOT devices?
Use of antivirus software
Use of internal firewall
Regular installation of product firmware updates
Complete separation of the device from the internet
IOT devices gather private information about users. Which statement is most true about the security of that data?
User can ensure security of collected data by encrypting it manually
Users must rely on data collecting agencies to securely store and transmit their data
User can sue data collecting agencies if their data is not held securely
Most data gathered by IOT devices is safe because IOT devices are not a target of hackers
Although people are aware of the dangers of cyber attack, they often do not understand the risks to IOT device
True
False
Identify which is not part of the features of Internet of things technology.
Artificial Intelligence
Architecture
Geo-Location
Size Consideration
Which of the following is false about IoT devices?
IoT devices use the internet for collecting and sharing data
IoT devices need microcontrollers
IoT devices use wireless technology
IoT devices are completely safe
Which of the following is not a fundamental component of an IoT system?
Sensors
Connectivity and data processing
User interface
Transformer
A method of representing data in a visual, machine-readable form
Is an IEEE 802.15.4-based specification for a suite of high-level communication protocols used to create personal area mesh networks with small, low-power digital radios, such as for home automation, medical device data collection, and other low-power low-bandwidth needs, designed for small scale projects which need wireless connection. Low cost, easy to deploy and has very long battery life.
In order to work, IoTP needs to collect ____________ from the connected devices.
friend requests
data
likes
A car is example of an object that can be part of the Internet of Things. True or False?
True
False
The car's manufacturer can use the data received to improve the car's design. True or False?
False
True
With the use of Internet of Things, ... (Choose 2 answers)
a manufacturer cannot repair more than 3 faults at one go.
a manufacturer can order the required parts to be used to make the repairs.
a manufacturer can set up an appointment to repair the fault.
The IoT things can help a manufacturer... (Choose 2 answers)
identify a faulty part from the data gathered.
dispose of a faulty part.
gather data on the type of usage of the device.
Internet of Things combines
computer capabilities and data analytics
computer portability and data sorting
computer specifications and data retrieval
Key component for Embedded systems?
Web service
Controller service
Micro controller
IOT
What is the real example of a smart grid device in IoT?
Smart speakers
Smart meters
Mobile phone
Television
SPI full form
System Peripheral Interface
Serial Peripheral Interface
Speed Peripheral Interface
Software Peripheral Interface
Which of the following touch sensor used in cell phone?
proximity touch sensor
follow touch sensor
human touch sensor
capacitive touch sensor
What is the Arduino UNO?
software
hardware
network
both a&b
What type of chip does an Arduino Uno run on?
McCains
ATmega328p
ARM Cortex-A7
Intel 4004
What wireless communication technology is commonly used for short-range, low-power IoT devices?
Wi-Fi
Zigbee
LoRaWAN
Cellular
Which of the following is a common vulnerability in IoT devices that hackers exploit for unauthorized access?
Strong encryption
Regular firmware updates
Default or weak passwords
Two-factor authentication
How are IoT devices commonly utilized in healthcare applications?
Patient monitoring
Crop yield prediction
Warehouse inventory management
Weather forecasting
What type of sensor is commonly used in IoT devices for air quality monitoring?
Accelerometer
Gas sensor
Temperature sensor
Proximity sensor
What is the primary benefit of using IoT devices in precision agriculture?
Maximize water usage
Minimize crop yield
Optimize resource efficiency
Promote soil erosion
Which IoT technology is often used for tracking and monitoring goods in transit?
RFID
GPS
Zigbee
NFC
What is a common privacy concern associated with IoT devices?
Unauthorized data access
Frequent firmware updates
Lack of connectivity
Energy efficiency
Which communication protocol is commonly used for IoT devices in industrial applications?
MQTT
HTTP
CoAP
XMPP
