WGU D337 PRE ASSESSMENT INTERNET OF THINGS AND
INFRASTRUCTURE NEWEST 2024 QUESTIONS AND CORRECT
DETAILED ANSWERS |ALREADY GRADED A+
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 - (correct answer) 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 - (correct answer) A
What moves data from IoT sensor devices to a central network?
A) Gateway
B) Actuator
C) Application server
D) Proxy server - (correct answer) 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 - (correct answer) 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 - (correct answer) 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 - (correct answer) 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 - (correct answer) B
What is a short-range network technology that supports meshing?
A) Zigbee
B) Bluetooth
C) Sigfox
D) Weightless - (correct answer) A
Which two components provide the connectivity for an IoT architecture?
Choose 2 answers.
A) 1, 3
B) 2, 3
C) 1, 2
D) 2, 4 - (correct answer) 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 - (correct answer) 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 - (correct answer) 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 - (correct answer) 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) - (correct answer) 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)
B) Smart meter (SM)
C) Intelligent energy device (IED)
D) Phasor measurement unit (PMU) - (correct answer) B
A city plans for an Intelligent Transport System (ITS) that monitors public transport
locations, as well as accidents and congestions, to control traffic lights effectively.
Which two items should be used to gather information for the system?
A) 1, 2
B) 1, 3
C) 2, 3
D) 3, 4 - (correct answer) A
An electric utility company needs to increase the speed of the collection and improve
the accuracy of the information it manually collects from its meters. The meters are
located in the back of residential dwellings.
Which solution meets both requirements?
A) Move meters to the front of every building
B) Have another person verify the data from the meters
C) Install a sensor on meters that can transmit data to a receiver
D) Change the analog meters to a digital display - (correct answer) C
Which IoT device is used in a smart building to determine when rooms are in use?
A) Humidity device
B) Thermo device
C) Smart speaker
D) Smart light - (correct answer) D
Which IoT device can improve emergency responses by monitoring a user's activities at
home?
A) Camera
B) Companion robot
C) Air tag
D) Compressor - (correct answer) B
Which type of IoT detection sensor built into electric bulbs minimizes energy usage?
A) Humidity
B) Light
C) Vibration
D) Motion - (correct answer) D
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