Out of the striping options available for the EBS volumes, which one has the following disadvantage : 'Doubles the amount of I/O required from the instance to EBS compared to RAID 0, because you're mirroring all writes to a pair of volumes, limiting how much you can stripe.' ?
Correct Answer:
C
Is Federated Storage Engine currently supported by Amazon RDS for MySQL?
Correct Answer:
B
An application on an Amazon EC2 instance routinely stops responding to requests and requires a reboot to recover. The application logs are already exported into Amazon CloudWatch, and you notice that the problem consistently follows the appearance of a specific message in the log. The application team is working to address the bug, but has not provided a date for the fix.
What workaround can you implement to automate recovery of the instance until the fix is deployed?
Correct Answer:
C
You have started a new role as a solutions architect for an architectural firm that designs large sky scrapers in the Middle East. Your company hosts large volumes of data and has about 250Tb of data on internal servers. They have decided to store this data on S3 due to the redundancy offered by it. The company currently has a telecoms line of 2Mbps connecting their head office to the internet. What method should they use to import this data on to S3 in the fastest manner possible.
Correct Answer:
D
In IAM, a policy has to include the information about who (user) is allowed to access the resource, known as the _____.
Correct Answer:
D
To specify resource-based permissions, you can attach a policy to the resource, such as an Amazon SNS topic, an Amazon S3 bucket, or an Amazon Glacier vault. In that case, the policy has to include information about who is allowed to access the resource, known as the principal. (For user-based policies, the principal is the IAM user that the policy is attached to, or the user who gets the policy from a group.)
http://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html