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24 Cards in this Set
- Front
- Back
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How many RDS instances allowed?
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40
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How long is RDS backup retention?
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35 days
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How long is the weekly RDS maintenance window?
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30 minutes
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What happens when you backup RDS?
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backups to S3, need to suspend I/O
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How many copies of Aurora are there by default?
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6 (2 in each of 3 AZ)
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What is the min / max size of SQL Server Express?
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20 GB, 300 GB
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What is the min / max size of SQL Server?
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200 GB, 4 TB
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What is default number of RDS Availability Zones?
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1 AZ
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What port is MySQL on?
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3306
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What is the replication for Dynamo DB?
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3 AZ by default
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How long is RedShift backup retention?
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35 days, to S3
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How do you encrypt RedShift?
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AES-256 encryption
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What are the limits on Kinesis?
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no limit on data, no limit on sources
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What is replication for Kinesis?
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3 facilities
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Where does Kinesis go?
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consumes, sends on (to RedShift, Elastic MapReduce, etc)
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Can you encrypt for Elastic MapReduce?
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yes, but you need to add a decryption step in your job
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How is Elastic MapReduce managed?
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it's a managed service, you can do it in a VPC
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What gets shut down first in Auto Scaling? |
AZ with most instances, then with oldest launch configuration, then closest to next billing hour, then random |
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What are the DynamoDB header attributes to use with POST? |
host, x-amz-date, x-amz-target, content-type |
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What are the two consistency types for DynamoDB? |
Strongly Consistent and Eventually Consistent |
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What are the drawbacks of choosing Strongly Consistent reads in DynamoDB? |
The cost is twice as much per read and it may be slower |
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What are the size limits of a DynamoDB object? |
400KB, including name and value |
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What data types are stored in DynamoDB? |
string, number, binary |
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How is DynamoDB partitioned? |
It happens automatically |
