- web.groovymark@gmail.com
- November 30, 2024
Question 01
Which building block is primarily responsible for connecting IoT devices to the internet?
a) Edge compute
b) Application
c) Gateway
d) Sensor
Correct Answer: c) Gateway
Explanation: The gateway serves as a bridge that facilitates communication between IoT devices and the internet.
Question 02
What technology is used to determine soil moisture levels in agriculture?
a) Temperature sensors
b) Soil moisture sensors
c) Pressure sensors
d) Light sensors
Correct Answer: b) Soil moisture sensors
Explanation: Soil moisture sensors specifically measure the moisture content in the soil to optimize irrigation.
Question 03
Which device is used to process data before it is sent to the cloud in an IoT system?
a) Actuator
b) Edge device
c) Proxy server
d) Sensor
Correct Answer: b) Edge device
Explanation: Edge devices process data locally, reducing latency and bandwidth usage before sending it to the cloud.
Question 04
In IoT architecture, which component collects raw data from the monitored entity?
a) Processor
b) Actuator
c) Gateway
d) Sensor
Correct Answer: d) Sensor
Explanation: Sensors are responsible for gathering raw data from their environment for further processing.
Question 05
What is a key characteristic of wireless local area networks (WLAN) in IoT?
a) One-year battery life
b) Supports low data rates
c) Uses FireWire protocol
d) Allows for line-of-sight communication
Correct Answer: d) Allows for line-of-sight communication
Explanation: WLAN technology can support communication that requires direct line-of-sight between devices.
Question 06
What is a major advantage of using the ISM frequency below 1 GHz in IoT applications?
a) Higher data rates
b) Lower costs
c) Shorter battery life
d) Greater range
Correct Answer: d) Greater range
Explanation: Lower ISM frequencies typically offer longer communication ranges, making them ideal for IoT applications.
Question 07
Which IoT technology is known for supporting mesh networking?
a) Bluetooth
b) Zigbee
c) Wi-Fi
d) Sigfox
Correct Answer: b) Zigbee
Explanation: Zigbee supports mesh networking, allowing devices to communicate over greater distances by relaying signals.
Question 08
What does the customer edge device primarily provide in the IoT architecture?
a) Advanced data processing
b) Telemetry and measurements
c) Local storage and processing capabilities
d) Cloud integration
Correct Answer: c) Local storage and processing capabilities
Explanation: Customer edge devices offer limited local storage and processing to handle data before it reaches the cloud.
Question 09
What are two common processor architectures used in Customer Premises Edge Compute (C-PEC) devices? Choose 2 answers.
- ARM
- MIPS
- x86
4. Itanium
a) 1, 2
b) 1, 3
c) 2, 3
d) 3, 4
Correct Answer: b) 1, 3
Explanation: ARM and x86 architectures are commonly found in edge computing devices for their performance and efficiency.
Question 10
In edge computing, which module is responsible for storing IoT data received from sensors?
a) Information broker
b) Protocol adapter
c) Rules engine
d) Case specific
Correct Answer: a) Information broker
Explanation: The information broker serves as a storage component for data collected from IoT sensors.
Question 11
Which device should a university use to measure power consumption in its buildings?
a) Smart meter (SM)
b) Intelligent energy device (IED)
c) Phasor measurement unit (PMU)
d) Power measurement and control (PMC)
Correct Answer: d) Power measurement and control (PMC)
Explanation: A PMC is specifically designed for measuring various electrical parameters accurately.
Question 12
What type of device should the university implement for billing purposes in dormitories?
a) Smart meter (SM)
b) Phasor measurement unit (PMU)
c) Intelligent energy device (IED)
d) Power measurement and control (PMC)
Correct Answer: a) Smart meter (SM)
Explanation: Smart meters are essential for monitoring and billing electricity usage accurately in residential settings.
Question 13
Which two components are essential for gathering data in an Intelligent Transport System (ITS)? Choose 2 answers.
- Smart CCTV cameras
- GPS devices
- Smart meters
4. Proximity sensors
a) 1, 2
b) 1, 3
c) 2, 3
d) 3, 4
Correct Answer: a) 1, 2
Explanation: Smart CCTV cameras and GPS devices are critical for collecting data about traffic conditions and public transport.
Question 14
What solution will improve the speed and accuracy of data collection for utility companies?
a) Moving meters to the front of buildings
b) Installing sensors on meters for remote transmission
c) Verifying data manually
d) Switching to digital meters
Correct Answer: b) Installing sensors on meters for remote transmission
Explanation: Adding sensors enables real-time data collection without manual intervention, enhancing efficiency.
Question 15
What type of IoT device helps to determine room occupancy in smart buildings?
a) Smart light
b) Thermo device
c) Humidity sensor
d) Smart speaker
Correct Answer: a) Smart light
Explanation: Smart lights can detect occupancy through motion sensing, indicating when rooms are in use.
Question 16
Which IoT device assists emergency services by monitoring a user’s activities at home?
a) Camera
b) Companion robot
c) Air tag
d) Pressure sensor
Correct Answer: b) Companion robot
Explanation: Companion robots can monitor user activities and provide alerts for emergency situations.
Question 17
What type of detection sensor built into light bulbs reduces energy consumption?
a) Humidity sensor
b) Light sensor
c) Motion sensor
d) Vibration sensor
Correct Answer: c) Motion sensor
Explanation: Motion sensors in light bulbs detect presence and adjust energy use accordingly to save power.
Question 18
What are two considerations a company should address when adopting IoT to protect PII? Choose 2 answers.
- Privacy
- Governance
- Security
4. Standardization
a) 1, 2
b) 1, 3
c) 2, 3
d) 3, 4
Correct Answer: b) 1, 3
Explanation: Privacy and security are crucial when managing personally identifiable information in IoT systems.
Question 19
Which two areas affect the networking requirements within the IoT landscape? Choose 2 answers.
- Smart home
- Smart roads
- Medical imaging
4. Wearable devices
a) 1, 2
b) 2, 3
c) 1, 3
d) 2, 4
Correct Answer: a) 1, 2
Explanation: The smart home and smart roads significantly influence networking needs due to their connectivity demands.
Question 20
What changes occur in IoT data processing when transitioning from Lambda to Kappa architecture?
a) The batch layer is removed.
b) The streaming layer is removed.
c) The batch layer replaces the serving layer.
d) The streaming layer replaces the serving layer.
Correct Answer: a) The batch layer is removed.
Explanation: Kappa architecture simplifies the data processing pipeline by eliminating the batch layer entirely.