Topical Cards from Digital Cloud AWS Cert Exam Flashcards Preview

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Flashcards in Topical Cards from Digital Cloud AWS Cert Exam Deck (48)
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Securty Groups

-Stateful, operate at ec2 level


Site to Site VPN

-connect datacenter to vpc over public internet, set up a virtual private gateway on vpn, customer gateway on the DC


AWS DataSync

-Used to move large amounts of data online between on-premises storage and Amazon S3 or Amazon Elastic File System (Amazon EFS
-source datastore can be Server Message Block (SMB) file servers


S3 Standard-IA

-objects are available for millisecond access
-charges a retrieval fee for these objects
-stores the object data redundantly across multiple geographically separated Availability Zone
-resilient to the loss of an Availability Zone


S3 One Zone-IA

-objects are available for millisecond access
-charges a retrieval fee for these objects
-object data in only one Availability Zone
-data is not resilient to the physical loss of the Availability Zone resulting from disasters


Service Control Policy (SCP)

-used to apply restrictions across multiple member accounts in an OU
-use deny rule to block a resource type (ec2 instance type for example) in member accounts


Global Accelerator

- improves the availability and performance of your applications with local or global users
-uses the congestion-free AWS global network to route TCP and UDP traffic to a healthy application endpoint in the closest AWS Region to the user.
-provides static IP addresses that act as a fixed entry point to your application endpoints in a single or multiple AWS Regions to your ALB or NLB


FSx for Windows File Server

-provides fully managed, highly reliable file storage accessible over SMB protocol
-provides a rich set of administrative features that include end-user file restore, user quotas, and Access Control Lists
-supports Distributed File System Replication (DFSR) in both Single-AZ and Multi-AZ deployments



-file storage for EC2 instances
-only available for Linux instances


Target Tracking AutoScaling

-allows you to specify a target value for a metric to scale off of (CPU for instances)



-columnar data warehouse DB that is ideal for running long complex queries.
-RedShift can also improve performance for repeat queries by caching the result and returning the cached result when queries are re-run.


AWS Batch Multi-node parallel jobs

-enable you to run single jobs that span multiple Amazon EC2 instances (model training)
-does not require you to launch, configure, and manage Amazon EC2 resources directly
-supports IP-based, internode communication, such as Apache MXNet, TensorFlow, Caffe2, or Message Passing Interface (MPI)


Scaling Process

-There are two primary process types: Launch and Terminate
-other process are Scheduled Actions, Replace Unhealthy, AZ Rebalance, ect.
-Autoscaling groups can have multiple scaling processes
-Process can be suspened and resumed


EC2 Standby State AutoScaling

-used for performing updates/changes/troubleshooting etc. without health checks being performed or replacement instances being launched
-instance still managed by Auto Scaling
-do not count towards available EC2 instance for workload/application
-health checks are not performe


Aazon DynamoDB Streams

-captures a time-ordered sequence of item-level modifications in DynamoDB table
-stores this information in a log for up to 24 hours
-logs can be accessed in near-real time


Troubleshooting ECS Containers

-Verify that the Docker daemon is running on the container instance.
-Verify that the Docker Container daemon is running on the container instance.
-Verify that the container agent is running on the container instance.
-Verify that the IAM instance profile has the necessary permissions.


Cognito Identity Pools

-provide temporary AWS credentials for users who are guests (unauthenticated) and for users who have been authenticated and received a token.
-used to obtain temporary AWS credentials to access AWS services, such as Amazon S3 and DynamoDB.


Cognito User Pools

-A user pool is a user directory in Amazon Cognito
-Used to provide access to an application (think web app log in via facebook)