In DynamoDB, "The data is eventually consistent" means that__________.
A
In DynamoDB, it takes time for the update to propagate to all copies. The data is eventually consistent, meaning that a read request immediately after a write operation might not show the latest change.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/APISummary.html
____________pricing offers significant savings over the normal price of DynamoDB provisioned throughput capacity.
B
Reserved Capacity pricing offers significant savings over the normal price of DynamoDB provisioned throughput capacity. When you buy Reserved Capacity, you pay a one-time upfront fee and commit to paying for a minimum usage level, at the hourly rates indicated above, for the duration of the Reserved Capacity term.
Reference:
http://aws.amazon.com/dynamodb/pricing/
In DynamoDB, which of the following operations is not possible by the console?
C
By using the console to manage DynamoDB, you can perform the following: adding an item, deleting an item, updating an item, and copying an item.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/AddUpdateDeleteItems.html
In order for a table write to succeed, the provisioned throughput settings for the table and global secondary indexes, in DynamoDB, must have__________; otherwise, the write to the table will be throttled.
A
In order for a table write to succeed in DynamoDB, the provisioned throughput settings for the table and global secondary indexes must have enough write capacity to accommodate the write; otherwise, the write will be throttled.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/GSI.html
In DynamoDB, to get a detailed listing of secondary indexes on a table, you can use the ______ action.
C
In DynamoDB, DescribeTable returns information about the table, including the current status of the table, when it was created, the primary key schema, and any indexes on the table.
Reference:
http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/SecondaryIndexes.html
In regard to DynamoDB, for which one of the following parameters does Amazon not charge you?
B
In DynamoDB, you will be charged for the storage and the throughput you use rather than for the I/O which has been used.
Reference:
http://aws.amazon.com/dynamodb/pricing/
Complete this statement: "When you load your table directly from an Amazon_____ table, you have the option to control the amount of provisioned throughput you consume."
C
When you load your table directly from an Amazon DynamoDB table, you have the option to control the amount of Amazon DynamoDB provisioned throughput you consume.
Reference:
http://docs.aws.amazon.com/redshift/latest/dg/t_Loading_tables_with_the_COPY_command.html
Which of the following does Amazon DynamoDB perform?
A
Amazon DynamoDB allows atomic increment and decrement operations on scalar values.
Reference:
http://aws.amazon.com/dynamodb/faqs/
A Provisioned IOPS volume must be at least __________ GB in size:
B
A Provisioned IOPS volume must be at least 10 GB in size
Reference:
http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/Storage.html
A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it?
A
With AWS EC2, when a user is launching an instance he can select the availability zone (AZ) at the time of launch. If the zone is not selected, AWS selects it on behalf of the user. Once the instance is launched, the user cannot change the zone of that instance unless he creates an AMI of that instance and launches a new instance from it.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html
