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Answer: Connect an IoT gateway to Cloud Pub/Sub and use Cloud Dataflow to process the messages
The recommended Google Cloud architecture for this scenario is to connect an IoT gateway to Cloud Pub/Sub and use Cloud Dataflow to process the messages (Option C). This approach allows the IoT gateway to batch messages from devices and send them to Cloud Pub/Sub, which can scale to handle varying loads. Cloud Dataflow then processes these messages, offering a scalable and managed solution. Option A suggests virtualizing a Kafka cluster on Compute Engine, which may not be as scalable or cost-effective. Option B, using Edge TPUs, is not ideal for long-term scalability. Option D, connecting Cloud Dataflow directly to the Kafka cluster, does not address the root issue of message volume spikes.
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You are managing a system that processes messages from IoT devices worldwide. Currently, a single on-premises Kafka cluster in the us-east region handles all messages, but managing sporadic spikes in message volume has become challenging and costly. What Google Cloud architecture would you recommend for this scenario?
A
Virtualize a Kafka cluster on Compute Engine in us-east and use Cloud Load Balancing to connect with IoT devices globally
B
Use Edge TPUs as sensor devices for storing and transmitting messages
C
Connect an IoT gateway to Cloud Pub/Sub and use Cloud Dataflow to process the messages
D
Connect Cloud Dataflow to the Kafka cluster to scale message processing
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