Question : When an instance is in a stopped state, you can ________ Amazon EBS volumes. 1. Attache 2. Detach 3. not either attach or detach 4. either attach or detach
Correct Answer : 4
Explanation: When an instance is stopped, the instance performs a normal shutdown, and then transitions to a stopped state. All of its Amazon EBS volumes remain attached, and you can start the instance again at a later time.
You are not charged for additional instance hours while the instance is in a stopped state. A full instance hour will be charged for every transition from a stopped state to a running state, even if this happens multiple times within a single hour. If the instance type was changed while the instance was stopped, you will be charged the rate for the new instance type after the instance is started. All of the associated Amazon EBS usage of your instance, including root device usage, is billed using typical Amazon EBS prices.
When an instance is in a stopped state, you can attach or detach Amazon EBS volumes. You can also create an AMI from the instance, and you can change the kernel, RAM disk, and instance type.
Question : When an instance is terminated, the instance performs a normal shutdown, then the attached Amazon EBS volumes are ________
1. deleted 2. will not be deleted 3. corrupted 4. None of the above
Correct Answer : 1 When an instance is terminated, the instance performs a normal shutdown, then the attached Amazon EBS volumes are deleted unless the volume's deleteOnTermination attribute is set to false. The instance itself is also deleted, and you can't start the instance again at a later time.
To prevent accidental termination, you can disable instance termination. If you do so, ensure that the disableApiTermination attribute is set to true for the instance. To control the behavior of an instance shutdown, such as shutdown -h in Linux or shutdown in Windows, set the instanceInitiatedShutdownBehavior instance attribute to stop or terminate as desired. Instances with Amazon EBS volumes for the root device default to stop, and instances with instance-store root devices are always terminated as the result of an instance shutdown.
Question :
Select the correct statement ?
1. Each region has multiple, isolated locations known as Availability Zones. 2. Each Availability Zones has multiple, isolated locations known as region . 3. Each Availability Zones is a separate geographic area 4. 1 and 3 5. 2 and 3
Correct Answer : 1
Explanation: Amazon EC2 is hosted in multiple locations world-wide. These locations are composed of regions and Availability Zones. Each region is a separate geographic area. Each region has multiple, isolated locations known as Availability Zones. Amazon EC2 provides you the ability to place resources, such as instances, and data in multiple locations. Resources aren't replicated across regions unless you do so specifically.
Amazon operates state-of-the-art, highly-available data centers. Although rare, failures can occur that affect the availability of instances that are in the same location. If you host all your instances in a single location that is affected by such a failure, none of your instances would be available.