IoT MAC Protocols Quiz

Which MAC protocol is best suited for low-power IoT networks?

• CSMA/CD

• TDMA

• Slotted ALOHA

• CSMA/CA

What is the primary challenge of using CSMA/CA in dense IoT networks?

• High energy efficiency

• High data rate

• Increased collisions due to hidden nodes

• Lack of encryption

Zigbee operates using which IEEE standard?

• 802.11

• 802.15.1

• 802.15.4

• 802.3

Which of the following MAC mechanisms is used in LoRaWAN?

• TDMA

• FDMA

• Pure ALOHA

• CSMA/CA

Which protocol ensures devices take turns accessing the medium in defined time slots?

• FDMA

• CSMA/CD

• TDMA

• Slotted ALOHA

In wireless IoT networks, energy-efficient MAC protocols are critical due to limited power sources.

CSMA/CD is widely used in wireless IoT networks.

TDMA can prevent collisions by assigning time slots to devices.

__________ is a technique where devices listen before transmitting to avoid collisions.

In Zigbee networks, the MAC layer is designed for low __________ consumption.