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Introduction to Internet Basics

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Questions and Answers

What is the Internet?

A system of interconnected computer networks using TCP/IP. (correct)
A network of private networks only.
A telephone-based communication system.
A network without any wireless technologies.

What is the main idea behind IoT?

To transform traditional objects into smart objects that can interact with each other. (correct)
To establish a network of non-communicating devices.
To limit the functionality of everyday objects.
To increase the complexity of traditional objects.

What are the challenges faced by IoT?

Reducing the inter-operability of devices.
Neglecting trust, security, and privacy concerns.
Ensuring low energy consumption and limited computation power. (correct)
Ensuring objects are not connected to the internet.

What are examples of IoT elements related to communication?

NFC and RFID technologies. (D) Signup and view all the answers

What are services associated with IoT?

Identity-related services and Information Aggregation Services. (C) Signup and view all the answers

What is the purpose of RFID in IoT?

To collect information about objects using radio frequencies. (B) Signup and view all the answers

What is the main purpose of an RFID device?

To provide a unique identifier for objects (A) Signup and view all the answers

How much data can the chip of an RFID device typically carry?

2,000 bytes (D) Signup and view all the answers

What are the two main components of an RFID system?

Readers and RFID tags (C) Signup and view all the answers

Which type of RFID tags require a battery for operation?

Active tags (D) Signup and view all the answers

In which way do RFID devices and barcodes differ in information retrieval?

RFID devices need to be scanned to get the information (B) Signup and view all the answers

What role do sensor networks play in relation to RFID systems?

They cooperate with RFID systems to better track objects (A) Signup and view all the answers

What is the main function of sink nodes in a sensor network connected to the Internet of Things (IoT)?

Send data to a low-end computational device (D) Signup and view all the answers

In terms of software layers, how does a sensor network differ from IoT?

IoT has a thin layer of software compared to sensor networks. (C) Signup and view all the answers

What distinguishes sensor networks from IoT in terms of application focus?

Sensor networks are focused on specific applications like monitoring. (B) Signup and view all the answers

What is an example of a difference between sensor networks and IoT provided in the text?

IoT focuses on generic services, whereas sensor networks are application-specific. (C) Signup and view all the answers

What is a characteristic of the architecture of the Internet of Things (IoT) as described in the text?

It uses event-driven sensors like door sensors. (C) Signup and view all the answers

In what aspect do sensor networks and IoT differ according to the text?

IoT is focused on context detection, whereas sensor networks are not. (C) Signup and view all the answers

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