The vision of a global network of interconnected computer networks, which would later give rise to IoT, was first proposed by ________.
- Alan Turing
- Bill Gates
- J.C.R. Licklider
- Nikola Tesla
The vision of a global network of interconnected computer networks, which laid the foundation for the Internet of Things (IoT), was first proposed by "J.C.R. Licklider." His ideas and contributions to the development of the ARPANET, a precursor to the internet, were instrumental in shaping the concept of IoT.
Which protocol is designed for scenarios where minimal code footprint is required and the network's bandwidth is limited?
- CoAP
- HTTP
- MQTT
- TCP
CoAP (Constrained Application Protocol) is designed specifically for IoT scenarios where resources like memory and bandwidth are limited. It's a lightweight and efficient protocol that is well-suited for IoT devices with constrained capabilities. Unlike HTTP and TCP, CoAP is tailored for these resource-constrained environments.
A major vulnerability in many IoT devices is:
- Energy-efficient design
- Frequent software updates
- Inexpensive hardware
- Weak or default passwords
A significant vulnerability in IoT devices is the use of weak or default passwords, which can be exploited by attackers to gain unauthorized access. It's essential to use strong, unique passwords to mitigate this risk.
An IoT startup wants to store data from wearable devices. This data will be structured, semi-structured, and unstructured. Which type of database should they consider?
- Graph Database
- NoSQL Database
- Relational Database
- SQL Database
IoT devices often generate diverse data types, including structured, semi-structured, and unstructured data. NoSQL databases are a suitable choice because they can handle various data types, provide flexibility, and scale horizontally to accommodate the growing data from wearable devices.
An organization implemented a system where an IoT device required both a password and a biometric scan to access. This is a form of:
- Encryption
- IoT Security
- Multi-Access Control
- Two-Factor Authentication
Requiring both a password and a biometric scan is a form of Two-Factor Authentication (2FA). It adds an extra layer of security beyond a simple password, making it harder for unauthorized users to gain access.
The deployment of 5G technology in IoT can significantly address which of the following challenges?
- Cost
- Interoperability
- Scalability
- Security
The integration of 5G technology in IoT can substantially improve interoperability, ensuring that various IoT devices can communicate effectively and efficiently. This is a challenge that 5G addresses in the IoT landscape.
For real-time IoT applications, which of the following programming languages might be considered the most suitable?
- C++
- Java
- Python
- Ruby
C++ is often considered the most suitable language for real-time IoT applications due to its efficiency and low-level control over hardware. It allows for precise resource management, which is crucial for real-time systems. While Python, Java, and Ruby have their merits, they may not be as well-suited for real-time IoT.
The process of ensuring that an IoT device operates within its intended purpose and network is called:
- Device lifecycle management
- Device reconfiguration
- Device synchronization
- IoT device programming
The process of ensuring that an IoT device operates within its intended purpose and network is called "Device lifecycle management." It involves activities like provisioning, configuration, monitoring, and maintenance to keep the device functioning as expected.
As IoT devices proliferate, the need for ________ in data storage becomes critical to ensure data integrity and quick retrieval.
- Compression
- Latency
- Scalability
- Security
As the number of IoT devices grows, ensuring data integrity and quick retrieval is crucial. Security measures become critical to protect the data from various threats and vulnerabilities.
Advanced visualization tools in IoT are crucial for:
- Reducing data storage costs.
- Enhancing the aesthetics of IoT dashboards.
- Gaining insights from complex data.
- Managing IoT device firmware.
Advanced visualization tools in IoT are crucial for gaining insights from complex data. With the enormous volume of data generated by IoT devices, visualizations help in presenting the data in a comprehensible manner. This is vital for analyzing trends, anomalies, and making informed decisions in IoT applications.