1. Right Answer: B
Explanation: In general, roads AWS ELB each application in an area with the minimum load. The Elastic Load Balancer provides a feature called sticky session that binds wear Ys ¬ session with a specific instance of EC2. If the sticky session enabled, the first user request is redirected to an EC2 instances. But now, all requests from the same user will be redirected to the same EC2 instance. This ensures that all requests from the user during the session will be sent to the same application instance.
2. Right Answer: C
Explanation: A user can stop / start or restart an EC2 instance using the AWS console, Amazon EC2 the CLI or the Amazon EC2 API. The instance is equivalent to a restart of the operating system restart. When the instance is restarted AWS does not charge the user for overtime. If the user stops the instance, AWS does not charge the cost of operating costs but the EBS storage cost. If the start of the user and stops the instance several times in a single hour, AWS will charge the user for each start and stop. In this case, since the instance was restarted twice, it will cost the user for 3 hours instance.
3. Right Answer: D
Explanation: Cloud Watch is used to monitor AWS and personalized services it provides is the basis of monitoring or detailed for products supported by AWS. In the basic monitoring, cloud service sends data points watch every five minutes, while the detailed monitoring of a cloud service sends data points shows every minute. Last automatic scaling includes 7 metric and one dimension, and sends data Cloud See all 5 minutes by default. The user can activate detailed automatic scaling monitoring, which sends data shows cloud every minute. However, this will have supplémentaires- costs.
4. Right Answer: C
Explanation: When the user configures the launch configuration and Auto Scaling group, the Auto Scaling group starts instances by running the minimum number (or the desired number, if specified. From EC2 case. If there is not other conditions of scaling related to setting auto scale group, it will maintain the minimum number of running instances at any time.
5. Right Answer: C
Explanation: When the user removes the Elastic Load Balancer, any recorded instances will be delisted. However, they continue to work. The user will incur charges if he takes no action on these cases.
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