Hybrid Environments and Migration Flashcards
What is AWS VPN?
A VPN connection between a VPC and an on prem network
What two gateways are used in VPN connection?
Virtual Private Gateway and Customer Gateway
What is the main advantage of VPN?
It is quick to configure, can be done in hours
What are downsides of VPN?
Speed cap at ~1.25 GB/s and inconsistent latency
What is Direct Connect (DX)?
A physical private link connecting your business premises to AWS public and private services.
What is the main downside of provisioning direct connect?
It’s a cable that has to be manually connected to a direct connect location - this can take weeks or months.
What’s the upside to direct connect compared to VPN?
Much faster and more consistent latency
Direct connect is (unencrypted/encrypted) by default
Unencrypted.
What is AWS Transit Gateway?
A network transit hub enabling VPCs to connect to on prem networks
What is the main advantage of AWS Transit Gateway?
Reduces complexity that comes with scale. Can link together multiple VPCs, VPN, dX, etc.
What does AWS Storage Gateway offer?
An extension of file and volume storage into AWS
What are the three modes of Storage Gateway?
Tape, File, and Volume
What Storage Gateway mode is backed by S3 and EBS snapshots?
volume
What Storage Gateway mode uses NFS file sharing protocol?
File
What Storage Gateway mode is primarily used for backup data e.g. Glacier?
Tape
What two capacities are offered by Snowball?
50 TB and 80 TB
What snow device can be used where data processing or ingestion is needed?
Snowball Edge
At what data size does AWS Snowmobile become worth using?
> = 10 PB of data
Where does AWS Directory Service run?
Within a VPC
What is Simple AD mode?
Integrates with AWS services, but not designed to integrate with existing on prem directory service
What is AWS Managed Microsoft AD mode?
Supports apps that require specific Microsoft implementation.
When might you use AD connector?
You want a proxy to your on prem directory without storing any directory info on cloud
Why would you want to use AWS DataSync?
Transfer data to and from AWS
What is the max transfer speed of AWS DataSync (per agent and per day)?
10 GBps per agent, 100 TB per day.
What are the 3 components of DataSync?
Task, Agent, Location
A DataSync ____ defines what is being synced
task
A datasync ____ accepts values like S3, EFS, FSx
location
What software is used to read or write to on prem data stores using datasync?
Agent
