Which of the following monitors the performance of the major cloud-based services in real time in Cloud Commons?

cloudwatch
cloudsensor
cloudmetrics
all of the mentioned

The correct answer is D. all of the mentioned.

Cloudwatch, Cloudsensor, and Cloudmetrics are all cloud-based services that monitor the performance of other cloud-based services in real time. They provide detailed information about the performance of these services, such as CPU usage, memory usage, and network traffic. This information can be used to identify and troubleshoot performance problems, and to ensure that cloud-based services are meeting the needs of their users.

Cloudwatch is a monitoring service provided by Amazon Web Services (AWS). It allows users to monitor the performance of AWS resources, such as EC2 instances, RDS instances, and S3 buckets. Cloudwatch provides a variety of metrics, including CPU usage, memory usage, disk usage, and network traffic. Users can also create alarms based on these metrics, which will be triggered when a certain threshold is exceeded.

Cloudsensor is a monitoring service provided by Google Cloud Platform (GCP). It allows users to monitor the performance of GCP resources, such as Compute Engine instances, Cloud Storage buckets, and Cloud SQL instances. Cloudsensor provides a variety of metrics, including CPU usage, memory usage, disk usage, and network traffic. Users can also create alarms based on these metrics, which will be triggered when a certain threshold is exceeded.

Cloudmetrics is a monitoring service provided by Microsoft Azure. It allows users to monitor the performance of Azure resources, such as virtual machines, storage accounts, and databases. Cloudmetrics provides a variety of metrics, including CPU usage, memory usage, disk usage, and network traffic. Users can also create alarms based on these metrics, which will be triggered when a certain threshold is exceeded.

All of these services provide valuable information about the performance of cloud-based services. By monitoring these services, users can identify and troubleshoot performance problems, and ensure that cloud-based services are meeting the needs of their users.