docs: add Terraform certification notes and tasks

terraform/011/main.tf

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+# terraform {
+#   required_providers {
+#     aws = {
+#       source  = "hashicorp/aws"
+#       version = "~> 6.0"
+#     }
+#   }
+# }
+
+# provider "aws" {
+#   region = "us-east-1"
+# }
+
+resource "aws_cloudwatch_metric_alarm" "datacenter_alarm" {
+  alarm_name          = "datacenter-alarm"
+  namespace           = "AWS/EC2"
+  metric_name         = "CPUUtilization"
+  statistic           = "Average"
+  comparison_operator = "GreaterThanThreshold"
+  threshold           = 80
+  period              = 300
+  evaluation_periods  = 1
+  alarm_description   = "Alarm when EC2 CPU utilization exceeds 80%"
+}

terraform/011/task-11.md

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+The Nautilus DevOps team is setting up monitoring in their AWS account. As part of this, they need to create a CloudWatch alarm.
+
+Using Terraform, perform the following:
+
+Task Details:
+Create a CloudWatch alarm named datacenter-alarm.
+The alarm should monitor CPU utilization of an EC2 instance.
+Trigger the alarm when CPU utilization exceeds 80%.
+Set the evaluation period to 5 minutes.
+Use a single evaluation period.
+Ensure that the entire configuration is implemented using Terraform. The Terraform working directory is /home/bob/terraform. Create the main.tf file (do not create a different .tf file) to accomplish this task.
+
+Note: Right-click under the EXPLORER section in VS Code and select Open in Integrated Terminal to launch the terminal.