Network

Question 1

CloudFront

Answer 1

CDN. System of distributed servers that delivers webpages and other web content to a user based on geographic location, origin of webpage and delivery server.
Can be used to deliver entire website including dynamic, static, streaming, interactive content using edge locations.

Question 2

CloudFront parts

Answer 2

• Origin: is origin of file that CDN will distribute (S3 bucket, EC2 instance, ELB, or Route 53).
  
  • Edge Location: where content will be cached separate to Region/AZ
  • Distribution: Name given to CDN which consists of a collection of edge locations

Question 3

CloudFront Distribution

Answer 3

Web distribution - websites
RTMP - media streaming
Link between an origin server (such as an Amazon S3 bucket) and a registered domain name (such as Amazon Route 53 or a different registrar). Through this link, CloudFront identifies the object you have stored in your origin server.

Question 4

CloudFront Pricing

Answer 4

1. Traffic Distribution
2. Requests
3. Data transfer out

Question 5

CloudFront signed URL

Answer 5

For content behind paid access. 
Use a signed URL or signed Cookie
1 signed file = 1 url
multiple files = 1 cookie
CloudFront signed URL connected to backend S3, EC2, ELB.

Question 6

AWS Snow

Answer 6

AWS SnowCone: Holds 8TB data and contain edge computing options like EC2 or IOT Greengrass. Order via AWS management console. Get it shipped to you. Migrate your data. Ship it back. Then copy data to AWS account (usually S3 bucket).
When direct connection is too slow because of bandwidth limitations.

Question 7

AWS Snowmobile

Answer 7

45 foot shipping container dropped off by truck. Houses 100 PB. Large migrations and data center shut downs. Appears as network attached storage device. Tamper resistant, waterproof, temp controlled, fire resistance, video tracking, security. Secure and tamper resistance onsite and on transit. All data encrypted using encryption keys. Can even use AWS KMS.

Question 8

High Performance Computing

Answer 8

Can create large amount of resources and only pay for resources used and once finished can destroy resources.
Used in econ, ML, finance, autonomous driving.
Difference services to achieve HPC on AWS:
Data Transfer: snowball, snow-mobile, DataSync, Direct connect
Compute/networking: EC2 that are GPU/CPU optimized, EC2 fleets, placement groups, enhanced networking
Storage: Instance attached storage (EBS upto 64K/provisioned IOPS) or instance store; network storage (S3, EFS, FSx)
Orchestration and Automation: AWS Batch (run loads of batch computing jobs using EC2, AWS Parallel cluster

Question 9

AWS Direct Connect

Answer 9

Can make “magic doorway” directly from office to coffee shop with lowest latency, highest security, using AWS Direct Connect (dedicated private connection from center to AWS).
This provides a physical line.
• Cloud service to establish dedicated network connection from premises to AWS
• Private connectivity
• Dedicated Line
• Reduce network cost,
• increase BW throughput
• provide more consistent network experience.
Good for high throughput.

Question 10

AWS DataSync

Answer 10

Online data transfer service that simplifies, automates, accelerates copying large amounts of data between on-premise storage systems and AWS storage services as well as between AWS storage services.

Question 11

AWS DataSync Supports

Answer 11

DataSync can copy data between Network File System (NFS), Server Message Block (SMB) file servers, self-managed object storage, AWS Snowcone, Amazon Simple Storage Service (Amazon S3) buckets, Amazon Elastic File System (Amazon EFS) file systems, and Amazon FSx for Windows File Server file systems.