Explore pivotal concepts and current advancements in 6G wireless technology, IoT communication methods, and future trends in network infrastructures. This quiz helps you assess knowledge on emerging wireless standards, device integration, and connectivity innovations shaping the digital future.
Which of the following is a primary feature expected to distinguish 6G networks from 5G, particularly for applications such as holographic communication?
Explanation: Terahertz frequency utilization is a hallmark of 6G, enabling ultra-high data rates and low latency for sophisticated applications like holographic communication. Enhanced LTE fallback is a characteristic of earlier network generations focusing on reliability, not next-gen speeds. Bluetooth mesh expansion pertains to local device networks, not mobile infrastructure. Repeater-based augmentation is primarily a coverage solution, not a driver of breakthrough data speeds or revolutionary capabilities.
What is the main advantage of Low-Power Wide-Area Networks (LPWAN) like NB-IoT for large-scale IoT deployments, such as in agricultural smart sensors?
Explanation: LPWAN technologies like NB-IoT provide extended range and low energy usage, making them ideal for dispersed IoT sensors requiring long battery life, such as in agriculture. High-resolution video streaming requires more bandwidth than LPWAN offers. Immediate real-time feedback is limited by LPWAN's low data rates and higher latency. LPWANs do not require fiber optics and can operate over standard cellular or licensed spectrum.
In the context of future wireless networks, how will artificial intelligence (AI) most likely improve network management by 2030?
Explanation: Artificial intelligence is expected to provide dynamic, real-time optimization of network resources, adapting quickly to changing conditions for efficiency and stability. Manual adjustment of routing tables is a traditional approach, less suitable for complex future networks. Disabling all wireless signal handovers would reduce mobility and coverage. IPv6 is being adopted widely due to address limitations with IPv4, so exclusive IPv4 support does not represent AI-driven improvement.
Massive Machine-Type Communication (mMTC) is a critical component of future networks; which scenario best illustrates its use?
Explanation: mMTC handles enormous numbers of low-data devices, like thousands of smart meters sending short messages across a network. Streaming 8K video relates to high data rates, not massive device count. Basic voice calls involve only two endpoints, not mass connectivity. Connecting a PC via Ethernet is a wired solution and not relevant to wireless mMTC scenarios.
Which challenge is most significant for maintaining security in large-scale IoT networks with millions of connected devices?
Explanation: Managing secure authentication and ensuring timely firmware updates are vital to defend against vulnerabilities in expansive IoT networks. Display brightness and hard-drive storage are device-specific features that do not directly affect network security. Physical SIM card sizes are unrelated to cybersecurity threats or the scale at which IoT devices operate, as many use embedded or virtual SIMs.