200-901 Question 180
Select 4A development team is deploying a new IoT application and needs to ensure that multiple devices in remote locations can securely send data to a cloud-based application. The team decides to use an IoT gateway to handle the communication. Which of the following are key responsibilities of the IoT gateway in this scenario?
- A
Aggregate and preprocess data from IoT devices before sending it to the cloud
- B
Directly store all IoT device data permanently without using the cloud
- C
Provide protocol translation to enable communication between IoT devices and the cloud application
- D
Secure the communication between IoT devices and the cloud using encryption
- E
Replace the need for IoT devices to connect to the cloud directly by acting as an intermediary
Show answer and explanation
Correct answers: A, C, D, E
Explanation
IoT gateways play a critical role in connecting IoT devices to cloud applications by aggregating and preprocessing data, translating protocols, securing communication, and acting as intermediaries. These features ensure efficient and secure data transmission while addressing the limitations of many IoT devices, such as low processing power and limited connectivity options.
- A. Correct.
Correct. IoT gateways often aggregate data from devices and preprocess it (e.g., filtering or compressing) to optimize data transmission to the cloud.
- B. Incorrect.
Incorrect. IoT gateways are not designed to be permanent data stores. They are typically used for data transfer and preprocessing, not long-term storage.
- C. Correct.
Correct. Protocol translation is a key feature of IoT gateways, enabling devices using different communication protocols to interact with cloud services.
- D. Correct.
Correct. IoT gateways often handle encryption or other security measures to ensure data is securely transmitted to the cloud.
- E. Correct.
Correct. The gateway acts as an intermediary, reducing the need for IoT devices to directly communicate with the cloud and managing connectivity on their behalf.