IoT Communication Layers Quiz

PHY Layer Responsibilities

• Responsible for data transmission in IoT; true statement.
• Functions as the physical medium for data transfer between devices.

Communication Medium Access

• Managed by the MAC (Media Access Control) layer, which regulates device communication over a network.

Common Technologies in PHY Layer

• Zigbee is frequently employed for wireless communication in the PHY layer, facilitating low-power, short-range data transmission.

Understanding MTC in IoT

• MTC stands for Machine-Type Communication, which involves devices communicating autonomously without human intervention.

MAC Layer Access Control Method

• CSMA (Carrier Sense Multiple Access) is an access control method used in the MAC layer to manage how devices access the communication medium.

Collision Prevention in MAC Layer

• The MAC layer helps avoid collisions, ensuring simultaneous data transmission does not lead to data loss.

Massive MTC (mMTC) Capabilities

• mMTC is designed to support large numbers of devices in the IoT ecosystem, making it crucial for scalability.

PHY Layer Challenges

• Key challenge includes signal interference, which can impact performance and reliability of wireless communications.

Role of Third-Party Protocols (3PP) in IoT

• Primarily used for interoperability, enabling seamless integration and communication between diverse systems and protocols.

MAC Layer Key Technologies

• TDMA (Time Division Multiple Access) is a significant technology associated with the MAC layer, allowing multiple users to share the same frequency channel by dividing the signal into time slots.