A user is launching an EC2 instance in the US East region. Which of the below mentioned options is
recommended by AWS with respect to the selection of the availability zone?
A.
Always select the US-East-1-a zone for HA
B.
Do not select the AZ; instead let AWS select the AZ
C.
The user can never select the availability zone while launching an instance
D.
Always select the AZ while launching an instance
Explanation:
When launching an instance with EC2, AWS recommends not to select the availability zone (AZ.. AWS
specifies that the default Availability Zone should be accepted. This is because it enables AWS to select the
best Availability Zone based on the system health and available capacity. If the user launches additional
instances, only then an Availability Zone should be specified. This is to specify the same or different AZ from
the running instances.
The answer B is only correct if the question had said launch an initial EC2 instance. However, it is not mentioned if the EC2 instance is an initiate or there are already other EC2 instance, in that case it should be D. The question itself is confusing
B is correct ..
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html
B is correct
Agree with Kelvin, confusing, we cannot assume its the initial instance
B
When you launch an instance, you can optionally specify an Availability Zone in the region that you are using. If you do not specify an Availability Zone, we select one for you. When you launch your initial instances, we recommend that you accept the default Availability Zone, because this enables us to select the best Availability Zone for you based on system health and available capacity. If you launch additional instances, only specify an Availability Zone if your new instances must be close to, or separated from, your running instances.
b
B