SA Professional Exam Flashcards
How long does it take to get data out of Glacier?
It can take AT LEAST 3 hours
What storage type provides the ability to create point-in-time snapshots of data volumes?
EBs
Which three services have automated backups?
RDS
Elasticache (Redis only)
Redshift
Which service does not have automated backups?
EC2
In Read Replicas vs Multi-AZ;
Which is used for scaling?
Read Replicas
In Read Replicas vs Multi-AZ;
Which is used for DR/MultiAZ?
Multi-AZ
How many read replicas can you have?
Up to 5
Can you have read replicas in different regions?
Yes - With the exception of SQL Server and Oracle
Are read replicas synchronous or asynchronous?
Asynchronous
[T/F] Read Replicas can be made off of Multi-AZ’s database
True
[T/F] Read Replicas can be in Multi-AZ.
True
Can you have a read replica of a read replica? Will this increase latency?
Yes, but only for MySQL and this will increase latency
DB Snapshots and Automated backups [can/cannot] be taken of read replicas.
Can - but are not enabled by default
If you application does not require transaction support, Atomicity, Consistency, Isolation, Durability (ACID) compliance, joins & SQL… What should you consider using instead of RDS?
DynamoDB
What are the 4 different Storage Gateway Types?
File Gateway
Gateway-Cached Volumes
Gateway-Stored Volumes
Gateway-Virtual Tape Library
How long does it take to access virtual tapes in your virtual tape library?
Instantaneous
How long does it take to access your virtual tapes from your virtual tape shelf?
It can take 24 hours
How is Storage Gateway encrypted?
Encrypted using SSL for transit
Encrypted at rest in S3 using AES-256
How are Gateway-Stored Volumes stored?
Stored data as Amazon EBS Snapshots in S3.
Gateway Storage snapshots [can/cannot] be scheduled.
Gateway Storage Volumes can be scheduled.
Gateway Storage bandwidth [can/cannot] be throttled.
Gateway storage can be throttled - which is great for remote sites
AWS Snowball _______ and _________ from S3.
Import; Export
AWS Import Export can only _______ to S3.
Import
_______ make it easy to group your resources using the tags that are assigned to them. You can group resources that share one or more tags.
Resource groups
_________ allows you to get volume discounts on all your accounts.
Consolidated billing
With consolidated billing, _____ is on a per account and per region basis but can be aggregated into a single bucket in the paying account.
CloudTrail
The contract length for Reserved Instances is between __ and __ years.
1 & 3
What are the 3 types of RIs?
Standard, Convertible, Scheduled
Which of the RIs offers the largest discount?
All Upfront RIs
Standard RIs for EC2 can be modified, but only if they are in the same _______ and only if the ______ factors are equal and only for the Linux operating system.
Family; Normalization;
You can switch EC2 RIs between ______, but not between ______.
AZs; Regions
EC2 RIs [can/cannot] be sold on the marketplace.
can
Can you have reserved RDS instances?
Yes
With RDS reserved instances, you can move ______ but not _______.
AZ’s but not regions.
Elastic Beanstalk [can/cannot] provision RDS instances.
can
Elastic Beanstalk [does/does not] support IAM.
does
You have ___ access to the resources under Elastic Beanstalk.
full
Elastic Beanstalk code is stored in ___.
S3