Q.1 What does IoT stand for?
Internet of Technology
Internet of Things
Interface of Things
Integration of Technology
Explanation - IoT stands for Internet of Things, which refers to interconnected devices that communicate over the internet.
Correct answer is: Internet of Things
Q.2 Which of the following best describes cloud computing?
Storing data on personal hard drives
On-demand availability of computing resources over the internet
Downloading apps from the internet
Using Bluetooth for communication
Explanation - Cloud computing provides resources like storage, processing power, and networking over the internet on-demand.
Correct answer is: On-demand availability of computing resources over the internet
Q.3 Which cloud model is owned and used by a single organization?
Public Cloud
Private Cloud
Hybrid Cloud
Community Cloud
Explanation - A private cloud is dedicated to a single organization for enhanced security and control.
Correct answer is: Private Cloud
Q.4 Which communication protocol is widely used in IoT for lightweight messaging?
HTTP
MQTT
SMTP
FTP
Explanation - MQTT (Message Queuing Telemetry Transport) is designed for lightweight, low-bandwidth IoT communications.
Correct answer is: MQTT
Q.5 What is the main benefit of integrating IoT with cloud computing?
Reduced internet speed
Centralized data storage and analysis
Increased device weight
Offline operation
Explanation - Cloud computing allows IoT devices to store and analyze large amounts of data centrally, improving efficiency.
Correct answer is: Centralized data storage and analysis
Q.6 Which of these is NOT an example of an IoT device?
Smartwatch
Smart Refrigerator
Cloud Server
Smart Light Bulb
Explanation - Cloud servers support IoT but are not themselves IoT devices; IoT devices are typically sensors and smart appliances.
Correct answer is: Cloud Server
Q.7 Which of the following is a Platform as a Service (PaaS) example?
Amazon EC2
Microsoft Azure App Service
Google Drive
Dropbox
Explanation - Azure App Service is a PaaS offering that allows developers to build and deploy applications without managing infrastructure.
Correct answer is: Microsoft Azure App Service
Q.8 In IoT, what is the function of sensors?
Store data
Transmit internet signals
Collect real-world data
Perform encryption
Explanation - Sensors in IoT devices collect environmental data like temperature, motion, or humidity.
Correct answer is: Collect real-world data
Q.9 Which cloud service model provides virtual machines and storage?
IaaS
PaaS
SaaS
FaaS
Explanation - Infrastructure as a Service (IaaS) provides virtualized computing resources like VMs, storage, and networking.
Correct answer is: IaaS
Q.10 Which of the following is a key challenge in IoT?
Low electricity cost
Data security and privacy
High storage availability
Fast internet access everywhere
Explanation - IoT generates massive amounts of sensitive data, making security and privacy a critical challenge.
Correct answer is: Data security and privacy
Q.11 Which layer of IoT architecture involves communication protocols?
Perception Layer
Network Layer
Application Layer
Business Layer
Explanation - The network layer in IoT ensures data transmission through communication protocols.
Correct answer is: Network Layer
Q.12 Which type of cloud is a combination of public and private cloud?
Community Cloud
Hybrid Cloud
Distributed Cloud
Dedicated Cloud
Explanation - A hybrid cloud combines both public and private clouds to balance flexibility and security.
Correct answer is: Hybrid Cloud
Q.13 Which IoT application is used in healthcare?
Smartwatch fitness tracking
Online shopping
Social media apps
Music streaming
Explanation - IoT in healthcare includes wearable devices like smartwatches that track health metrics.
Correct answer is: Smartwatch fitness tracking
Q.14 Which company provides AWS IoT services?
Google
Microsoft
Amazon
IBM
Explanation - AWS (Amazon Web Services) is Amazon’s cloud platform, which includes IoT services.
Correct answer is: Amazon
Q.15 Which IoT protocol is best for device-to-device short-range communication?
Zigbee
SMTP
POP3
IMAP
Explanation - Zigbee is a low-power, short-range communication protocol widely used in IoT.
Correct answer is: Zigbee
Q.16 Which type of service is Google Drive?
IaaS
PaaS
SaaS
FaaS
Explanation - Google Drive is Software as a Service (SaaS) since it provides storage and applications directly to end-users.
Correct answer is: SaaS
Q.17 What does 'scalability' in cloud computing mean?
Reducing application size
Adding more users automatically
Ability to increase or decrease resources as needed
Encrypting all data
Explanation - Scalability allows cloud systems to adjust resources according to demand.
Correct answer is: Ability to increase or decrease resources as needed
Q.18 Which IoT application is used in smart cities?
Traffic monitoring systems
Online gaming
File compression
Instant messaging
Explanation - IoT is used in smart cities to manage traffic with connected sensors and cameras.
Correct answer is: Traffic monitoring systems
Q.19 What type of cloud service is AWS Lambda?
SaaS
IaaS
FaaS
PaaS
Explanation - AWS Lambda is a Function as a Service (FaaS) that lets you run code without managing servers.
Correct answer is: FaaS
Q.20 What does latency mean in IoT and cloud systems?
Battery life of devices
Delay in data transmission
Amount of storage used
Data encryption strength
Explanation - Latency refers to the time delay in sending and receiving data over a network.
Correct answer is: Delay in data transmission
Q.21 Which layer in IoT architecture handles data interpretation for users?
Network Layer
Application Layer
Perception Layer
Business Layer
Explanation - The application layer provides user-oriented services such as health monitoring and smart homes.
Correct answer is: Application Layer
Q.22 Which of these is an example of SaaS in cloud computing?
Microsoft Word installed locally
Google Docs
Amazon EC2
Microsoft Azure Functions
Explanation - Google Docs is SaaS because it provides software access through the internet without installation.
Correct answer is: Google Docs
Q.23 What is the role of actuators in IoT?
Collect data
Send signals
Perform actions based on commands
Encrypt information
Explanation - Actuators carry out actions like turning on a motor or opening a valve based on IoT signals.
Correct answer is: Perform actions based on commands
Q.24 Which of the following is a benefit of cloud computing for IoT?
Limited data collection
Infinite device connectivity
Scalable data storage and processing
Manual system updates
Explanation - Cloud computing enables IoT devices to scale data handling and processing easily.
Correct answer is: Scalable data storage and processing
Q.25 Which cloud deployment model is shared among organizations with similar interests?
Public Cloud
Community Cloud
Hybrid Cloud
Private Cloud
Explanation - Community clouds are used by multiple organizations with shared goals, such as government agencies.
Correct answer is: Community Cloud