WGU D337 ACTUAL EXAM 2023 INTERNET OF THINGS AND
INFRASTRUCTURE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT) |ALREADY GRADED A+
Hardware breakthrough that aimed to connect everyday objects to a network - (correct answer)
1st wave of IoT
Developing new types of sensors and new technologies and protocols to support their deployment
- (correct answer) 2nd wave of IoT
Data collection, processing, and security - (correct answer) 3rd wave of IoT
Set of stakeholders that participate in the deployment of IoT technology and the relationship
between them - (correct answer) IoT ecosystem
Owners of sensor deployments.
Collects and makes data available to others without giving up ownership rights of the information.
They also build dedicated services or applications. - (correct answer) Information provider
Provides computing and storage infrastructure, analytics as well as AI capabilities - (correct
answer) Platform provider
Produce applications that process the available data within a specific context to produce
actionable insight for end users. - (correct answer) Application developers
Private persons or institutional decision makers that use information and applications provided by
other stakeholders - (correct answer) End users
Practice of protecting information systems, networks, data and programs - (correct answer)
Cybersecurity
Network of hundreds of thousands of interconnected computers, servers, routers, switches and
fiber optic cables that allow vital infrastructures to work - (correct answer) Cyberspace
Technologies that generate, store and process data as fixed numbers; binary digits or bits in the
form of 0's and 1's - (correct answer) Digital
Combinations of hardware, software and networks that are integrated together to collect, process,
store and distribute data - (correct answer) Information systems
Module used to store IoT data received from sensors or from the cloud - (correct answer)
Information broker
,Global network of wired and wireless networks - (correct answer) Internet
Information space consisting of a number of public resources that are linked together and made
accessible via the internet - (correct answer) Web
Uses cyberspace to disrupt critical infrastructures to elicit widespread panic and loss of public
confidence in the ability of government to function effectively, such as by interrupting critical
infrastructure - (correct answer) Cyber terrorists
All the user's networks around their personal and home devices - (correct answer) Consumer
IoT
Machines, computers and people enabling intelligent industrial operations using advanced data
analytics for transformation business outcomes - (correct answer) Industrial IoT
Connected devices that monitor the human body, collect physiological, biometric, or behavioral
data and exchange information of a wireless or hybrid network. Can be implanted, swallowed or
worn. - (correct answer) Internet of Bodies (IoB)
Short-distance network that allows multiple devices within a small area to connect to each other.
Examples of a WPAN are Bluetooth and Zigbee. - (correct answer) Wireless Personal Area
Network (WPAN)
Devices that respond to inputs from the physical environment and use those inputs for decision-
making by displaying the inputs, transmitting them for additional processing, or using them in
conjunction with artificial intelligence - (correct answer) Sensors
Measurements of some physical property. Data has values, a time and location. There are fixed
and mobile sensors. - (correct answer) Sensor data
Device that converts an electrical signal into a corresponding physical quantity such as movement,
force, or sound - (correct answer) Actuator
Simple networked devices such as sensors and actuators that are installed close to the data
source or control interfaces. Usually connected via 3G, 4G, 5G, Wi-Fi, PCIe, USB or Ethernet within
an edge computing application scenario. - (correct answer) IoT devices
A process of data aggregation, manipulation, bandwidth reduction, and other logic directly on an
IoT sensor or device - (correct answer) Edge processing
Part of a network which is concerned with moving data to and from a sensor or edge device to a
backhaul network - (correct answer) Access network
, Building block used to move collected data (from sensors) to the central IoT platform. - (correct
answer) Gateway
Lower than 1 GHz, 868 MHz in EU called ISM (Industrial, Scientific, and Medicine) band,
USA 915 MHz
Several techs that use this band are Sigfox, LoRaWAN, and Weightless
LPWANs have lower data rates compared to normal cellular ones - (correct answer) LPWAN
(Low Power Wireless Area Network )
Group of collocated computers or other devices that form a network based on radio transmissions
rather than wired connections - (correct answer) WLAN (Wireless Local Area Network)
Data rate, power availability, range, cost - (correct answer) What are the 4 things to consider
when choosing IoT connectivity?
Devices that receive data from and send commands to IoT devices. - (correct answer) Customer
Edge Device
Computer node that focuses on data aggregation, compression and transformation. The ___ server
may suffer from resource limitation. - (correct answer) Mobile Edge Computing (MEC)
Powerful central storage and processing capability for IoT use cases such as data interoperability
and uniform data access. Handles management of IoT devices for remote management. -
(correct answer) Centralized IoT platform
Systems transmit the signal in a small amount of spectrum, usually less than 1 kHz, and are
particularly suitable for small amounts of data - (correct answer) UNB (Ultra-Narrow Band)
Technique in which the signal is transmitted on a bandwidth that is much bigger than the original
frequency to decrease interference and increase security - (correct answer) Spread spectrum
based on LoRa protocol from Semtech.
is asynchronous and uses Spread spectrum.
Suitable for dense deployments such as buildings or cities. - (correct answer) LoRaWAN
Short-ranged network with meshing - (correct answer) Zigbee
Named for company that owns it.
Used in Narrowband (200 kHz)
Suitable for dense deployments such as buildings or cities. - (correct answer) SigFox
Consists of three protocols, works on 2.4 - (correct answer) Weightless
INFRASTRUCTURE 200 QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT) |ALREADY GRADED A+
Hardware breakthrough that aimed to connect everyday objects to a network - (correct answer)
1st wave of IoT
Developing new types of sensors and new technologies and protocols to support their deployment
- (correct answer) 2nd wave of IoT
Data collection, processing, and security - (correct answer) 3rd wave of IoT
Set of stakeholders that participate in the deployment of IoT technology and the relationship
between them - (correct answer) IoT ecosystem
Owners of sensor deployments.
Collects and makes data available to others without giving up ownership rights of the information.
They also build dedicated services or applications. - (correct answer) Information provider
Provides computing and storage infrastructure, analytics as well as AI capabilities - (correct
answer) Platform provider
Produce applications that process the available data within a specific context to produce
actionable insight for end users. - (correct answer) Application developers
Private persons or institutional decision makers that use information and applications provided by
other stakeholders - (correct answer) End users
Practice of protecting information systems, networks, data and programs - (correct answer)
Cybersecurity
Network of hundreds of thousands of interconnected computers, servers, routers, switches and
fiber optic cables that allow vital infrastructures to work - (correct answer) Cyberspace
Technologies that generate, store and process data as fixed numbers; binary digits or bits in the
form of 0's and 1's - (correct answer) Digital
Combinations of hardware, software and networks that are integrated together to collect, process,
store and distribute data - (correct answer) Information systems
Module used to store IoT data received from sensors or from the cloud - (correct answer)
Information broker
,Global network of wired and wireless networks - (correct answer) Internet
Information space consisting of a number of public resources that are linked together and made
accessible via the internet - (correct answer) Web
Uses cyberspace to disrupt critical infrastructures to elicit widespread panic and loss of public
confidence in the ability of government to function effectively, such as by interrupting critical
infrastructure - (correct answer) Cyber terrorists
All the user's networks around their personal and home devices - (correct answer) Consumer
IoT
Machines, computers and people enabling intelligent industrial operations using advanced data
analytics for transformation business outcomes - (correct answer) Industrial IoT
Connected devices that monitor the human body, collect physiological, biometric, or behavioral
data and exchange information of a wireless or hybrid network. Can be implanted, swallowed or
worn. - (correct answer) Internet of Bodies (IoB)
Short-distance network that allows multiple devices within a small area to connect to each other.
Examples of a WPAN are Bluetooth and Zigbee. - (correct answer) Wireless Personal Area
Network (WPAN)
Devices that respond to inputs from the physical environment and use those inputs for decision-
making by displaying the inputs, transmitting them for additional processing, or using them in
conjunction with artificial intelligence - (correct answer) Sensors
Measurements of some physical property. Data has values, a time and location. There are fixed
and mobile sensors. - (correct answer) Sensor data
Device that converts an electrical signal into a corresponding physical quantity such as movement,
force, or sound - (correct answer) Actuator
Simple networked devices such as sensors and actuators that are installed close to the data
source or control interfaces. Usually connected via 3G, 4G, 5G, Wi-Fi, PCIe, USB or Ethernet within
an edge computing application scenario. - (correct answer) IoT devices
A process of data aggregation, manipulation, bandwidth reduction, and other logic directly on an
IoT sensor or device - (correct answer) Edge processing
Part of a network which is concerned with moving data to and from a sensor or edge device to a
backhaul network - (correct answer) Access network
, Building block used to move collected data (from sensors) to the central IoT platform. - (correct
answer) Gateway
Lower than 1 GHz, 868 MHz in EU called ISM (Industrial, Scientific, and Medicine) band,
USA 915 MHz
Several techs that use this band are Sigfox, LoRaWAN, and Weightless
LPWANs have lower data rates compared to normal cellular ones - (correct answer) LPWAN
(Low Power Wireless Area Network )
Group of collocated computers or other devices that form a network based on radio transmissions
rather than wired connections - (correct answer) WLAN (Wireless Local Area Network)
Data rate, power availability, range, cost - (correct answer) What are the 4 things to consider
when choosing IoT connectivity?
Devices that receive data from and send commands to IoT devices. - (correct answer) Customer
Edge Device
Computer node that focuses on data aggregation, compression and transformation. The ___ server
may suffer from resource limitation. - (correct answer) Mobile Edge Computing (MEC)
Powerful central storage and processing capability for IoT use cases such as data interoperability
and uniform data access. Handles management of IoT devices for remote management. -
(correct answer) Centralized IoT platform
Systems transmit the signal in a small amount of spectrum, usually less than 1 kHz, and are
particularly suitable for small amounts of data - (correct answer) UNB (Ultra-Narrow Band)
Technique in which the signal is transmitted on a bandwidth that is much bigger than the original
frequency to decrease interference and increase security - (correct answer) Spread spectrum
based on LoRa protocol from Semtech.
is asynchronous and uses Spread spectrum.
Suitable for dense deployments such as buildings or cities. - (correct answer) LoRaWAN
Short-ranged network with meshing - (correct answer) Zigbee
Named for company that owns it.
Used in Narrowband (200 kHz)
Suitable for dense deployments such as buildings or cities. - (correct answer) SigFox
Consists of three protocols, works on 2.4 - (correct answer) Weightless
