Which of the following represents a major security vulnerability in unmanaged IoT smart devices?
Unmanaged IoT devices often suffer from default passwords, unencrypted channels, and unpatched firmware, making options A, B, and C all critical vulnerabilities (e.g., exposed in Mirai botnet attacks).
Which infamous IoT botnet launched massive DDoS attacks in 2016 by scanning for vulnerable IoT devices using factory default passwords?
The Mirai botnet compromised hundreds of thousands of weak IoT devices (IP cameras, routers) using hardcoded default logins to launch record-breaking Distributed Denial of Service (DDoS) attacks.
In the 3-layer basic IoT architecture, which layer includes protocols like Wi-Fi, 4G/5G, Zigbee, and Bluetooth for transmitting telemetry data?
The Network Layer transfers sensor data collected by the Perception Layer to central processing servers or cloud systems using wired/wireless communication technologies.
What is 'Lightweight Cryptography' (LWC) in IoT security?
Lightweight Cryptography (LWC) tailored algorithms (like NIST-selected ASCON, PRESENT) provide adequate security while fitting within strict resource limits of low-power IoT microcontrollers.
Which popular microcontroller development board based on the ATmega328P is widely used for prototyping basic IoT perception layer nodes?
Arduino Uno utilizes the ATmega328P 8-bit microcontroller and is a standard prototyping board for reading analog/digital sensor inputs.