-
web.groovymark@gmail.com
- November 30, 2024
Question 01
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) Gateway
Explanation: The gateway acts as a bridge that facilitates the transfer of data from IoT devices to the central IoT platform.
Question 02
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) Capturing soil moisture metrics
Explanation: Soil moisture sensors are designed to capture and provide data on the moisture levels in the soil to inform irrigation decisions.
Question 03
What moves data from IoT sensor devices to a central network?
a) Gateway
b) Actuator
c) Application server
d) Proxy server
Correct Answer: a) Gateway
Explanation: The gateway is responsible for transmitting data collected by IoT sensors to the central network for further processing.
Question 04
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) Edge computing
Explanation: Edge computing allows data to be processed near the source, reducing latency and bandwidth usage before it is sent to the cloud.
Question 05
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) Sensor
Explanation: Sensors are the fundamental components that collect raw data from the environment for IoT applications.
Question 06
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) Support for line-of-sight communication
Explanation: WLANs typically require line-of-sight communication for optimal performance, as is common with wireless technologies.
Question 07
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) Longer range
Explanation: Lower frequencies generally allow for longer transmission distances compared to higher frequencies.
Question 08
What is a short-range network technology that supports meshing?
a) Zigbee
b) Bluetooth
c) Sigfox
d) Weightless
Correct Answer: a) Zigbee
Explanation: Zigbee is designed for short-range communication and supports mesh networking, allowing devices to communicate with each other.
Question 09
Which two components provide the connectivity for an IoT architecture? Choose 2 answers.
- Access network
- Gateway
- Sensor
4. Edge device
a) 1, 3
b) 2, 3
c) 1, 2
d) 2, 4
Correct Answer: c) 1, 2
Explanation: The access network and gateway are essential components for enabling connectivity in IoT systems.
Question 10
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) Provides limited local storage and processing capabilities
Explanation: The customer edge device typically has constrained resources and is used for basic data handling at the edge.
Question 11
Which two processor architectures are used by Customer Premises Edge Compute (C-PEC) devices? Choose 2 answers.
- x86
- MIPS
- ARM
4. Itanium
a) 1, 3
b) 1, 2
c) 2, 3
d) 3, 4
Correct Answer: a) 1, 3
Explanation: x86 and ARM architectures are commonly found in edge computing devices for their performance and efficiency.
Question 12
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) Information broker
Explanation: The information broker module is responsible for managing data flow and storage within the edge computing framework.
Question 13
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) Power measurement and control (PMC)
Explanation: The PMC is capable of measuring various electrical parameters crucial for monitoring power quality and efficiency.
Question 14
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) Smart meter (SM)
Explanation: Smart meters are specifically designed for monitoring and billing energy consumption.
Question 15
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? Choose 2 answers.
- GPS devices
- Smart CCTV cameras
- Smart meters
4. Intraocular devices
a) 1, 2
b) 1, 3
c) 2, 3
d) 3, 4
Correct Answer: a) 1, 2
Explanation: GPS devices and smart CCTV cameras are integral for tracking vehicle movements and monitoring traffic conditions.
Question 16
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) Install a sensor on meters that can transmit data to a receiver
Explanation: Installing sensors allows for automated data transmission, enhancing speed and accuracy.
Question 17
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) Smart light
Explanation: Smart lights often include occupancy sensors that detect room usage based on movement.
Question 18
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) Companion robot
Explanation: Companion robots can monitor activities and alert emergency services in case of unusual behavior or emergencies.
Question 19
Which type of IoT detection sensor built into electric bulbs minimizes energy usage?
a) Humidity
b) Light
c) Vibration
d) Motion
Correct Answer: d) Motion
Explanation: Motion sensors in electric bulbs enable lights to turn on and off based on occupancy, reducing energy waste.
Question 20
A company plans to adopt IoT into its business operations and then go public. The company is concerned about the financial and reputational impact of increasing the volume of personally identifiable information (PII) that might inadvertently be exposed, which would affect the value of its stock. Which two considerations should be addressed as part of the adoption strategy? Choose 2 answers.
- Governance
- Privacy
- Security
4. Standardization
a) 1, 2
b) 1, 3
c) 2, 3
d) 3, 4
Correct Answer: c) 2, 3
Explanation: Privacy and security are critical for protecting PII and maintaining customer trust.
