WGU D337 - INTERNET OF THINGS AND
INFRASTRUCTURE EXAM QUESTIONS AND 100%
CORRECT ANSWERS (A+) 2025
Which building block is used to move collected IoT data to the central IoT
platform?
A) Edge compute
B) Application
C) Gateway
D) Smart device
C
What is the function of soil moisture sensors in a smart agriculture ecosystem?
A) Capturing soil moisture metrics
B) Processing soil moisture metrics
C) Activating sprinklers based on low-soil-moisture metrics
D) Transmitting soil moisture metrics to a central network
A
What moves data from IoT sensor devices to a central network?
A) Gateway
B) Actuator
C) Application server
D) Proxy server
A
Which computation method processes data captured at the sensor device before
sending it to a backhaul network?
A) Data analytics
B) Data access
C) Cloud computing
D) Edge computing
,D
Which building block of the IoT architecture is responsible for collecting raw data
generated by the monitored entity?
A) Actuator
B) Gateway
C) Processor
D) Sensor
D
Which feature characterizes a wireless local area network (WLAN) in an IoT
architecture?
A) Limit of battery life of one year
B) Limit of data rate of 1 KB
C) Support for FireWire protocol
D) Support for line-of-sight communication
D
What is the result of switching from the industrial, scientific, and medical (ISM)
frequency above 1 GHz to the ISM frequency below 1 GHz?
A) Lower cost
B) Longer range
C) Higher data rate
D) Shorter battery life
B
What is a short-range network technology that supports meshing?
A) Zigbee
B) Bluetooth
C) Sigfox
D) Weightless
,A
Which two components provide the connectivity for an IoT architecture?
Choose 2 answers.
1. Access network
2. Gateway
3. Sensor
4. Edge device
A) 1, 3
B) 2, 3
C) 1, 2
D) 2, 4
C
What is the function of the customer edge device in the four-node edge computing
model?
A) Provides limited local storage and processing capabilities
B) Performs data aggregation and reduces transmission costs
C) Performs measurements and provides telemetry
D) Provides powerful storage and processing capabilities
A
Which two processor architectures are used by Customer Premises Edge Compute
(C-PEC) devices?
Choose 2 answers.
1. x86
2. MIPS
3. ARM
4. Itanium
A) 1, 3
B) 1, 2
, C) 2, 3
D) 3, 4
A
Which module in the edge computing framework is used to store IoT data received
from sensors or from the cloud?
A) Protocol adapter
B) Information broker
C) Rules engine
D) Case specific
B
A university is testing a smart energy solution and requires a system to monitor the
following parameters of power used by its buildings:
- voltage
- phase
- apparent power
- power factor
- frequency
Which device should be used to perform these readings?
A) Intelligent energy device (IED)
B) Smart meter (SM)
C) Power measurement and control (PMC)
D) Phasor measurement unit (PMU)
C
A university is deploying a smart energy solution to its student dormitories and
needs to collect power usage data for billing purposes.
Which device should this university use?
A) Power measurement and control (PMC)
INFRASTRUCTURE EXAM QUESTIONS AND 100%
CORRECT ANSWERS (A+) 2025
Which building block is used to move collected IoT data to the central IoT
platform?
A) Edge compute
B) Application
C) Gateway
D) Smart device
C
What is the function of soil moisture sensors in a smart agriculture ecosystem?
A) Capturing soil moisture metrics
B) Processing soil moisture metrics
C) Activating sprinklers based on low-soil-moisture metrics
D) Transmitting soil moisture metrics to a central network
A
What moves data from IoT sensor devices to a central network?
A) Gateway
B) Actuator
C) Application server
D) Proxy server
A
Which computation method processes data captured at the sensor device before
sending it to a backhaul network?
A) Data analytics
B) Data access
C) Cloud computing
D) Edge computing
,D
Which building block of the IoT architecture is responsible for collecting raw data
generated by the monitored entity?
A) Actuator
B) Gateway
C) Processor
D) Sensor
D
Which feature characterizes a wireless local area network (WLAN) in an IoT
architecture?
A) Limit of battery life of one year
B) Limit of data rate of 1 KB
C) Support for FireWire protocol
D) Support for line-of-sight communication
D
What is the result of switching from the industrial, scientific, and medical (ISM)
frequency above 1 GHz to the ISM frequency below 1 GHz?
A) Lower cost
B) Longer range
C) Higher data rate
D) Shorter battery life
B
What is a short-range network technology that supports meshing?
A) Zigbee
B) Bluetooth
C) Sigfox
D) Weightless
,A
Which two components provide the connectivity for an IoT architecture?
Choose 2 answers.
1. Access network
2. Gateway
3. Sensor
4. Edge device
A) 1, 3
B) 2, 3
C) 1, 2
D) 2, 4
C
What is the function of the customer edge device in the four-node edge computing
model?
A) Provides limited local storage and processing capabilities
B) Performs data aggregation and reduces transmission costs
C) Performs measurements and provides telemetry
D) Provides powerful storage and processing capabilities
A
Which two processor architectures are used by Customer Premises Edge Compute
(C-PEC) devices?
Choose 2 answers.
1. x86
2. MIPS
3. ARM
4. Itanium
A) 1, 3
B) 1, 2
, C) 2, 3
D) 3, 4
A
Which module in the edge computing framework is used to store IoT data received
from sensors or from the cloud?
A) Protocol adapter
B) Information broker
C) Rules engine
D) Case specific
B
A university is testing a smart energy solution and requires a system to monitor the
following parameters of power used by its buildings:
- voltage
- phase
- apparent power
- power factor
- frequency
Which device should be used to perform these readings?
A) Intelligent energy device (IED)
B) Smart meter (SM)
C) Power measurement and control (PMC)
D) Phasor measurement unit (PMU)
C
A university is deploying a smart energy solution to its student dormitories and
needs to collect power usage data for billing purposes.
Which device should this university use?
A) Power measurement and control (PMC)
