Networking Flashcards
Networking falls under this Pillar of AWS
Content Delivery
Allows you to define and provision an isolated network for your AWS resources
Amazon VPC
Service that connect VPCs and on-premise networks
AWS Transit Gateway
Provides private connectivity between VPCs and on-premise applications
AWS Private Link
Allows you to host your own managed DNS.
Route 53
Automatic distribution of network traffic across a pool of resources
Elastic Load Balancing
Directs traffic through the AWS global network to improve global application performance.
AWS Global Accelerator
Allows you to securely deliver data, videos, and applications to customers globally with low latency and high transfer speeds.
Amazon CloudFront
Bridge between your computer and the technology used to connect to other computers
Network Interface.
How do you configure a network
Set up an IP Address Range,
What analogy is good to use for an IP Address Range.
Gated Community
Computers can only talk to other computers in the same community
Typical local network gives us 4 sets of numbers 0 to 254 separated by a . (dot)
IP version 4
Service that converts words - acloud.guru into an IP address
DNS
A kind of database that IP addresses map to which domains
DNS
You need this when you create a record or mapping between IP address and domain names
Routing Policy
Determines where a user is directed when they try to access your website via the domain name.
Route 53 will reply with the IP address of your web server
Simple Routing Policy
Policy where you can provide multiple IP addresses to spread your load to.
Weighted
The weight determines h determines this
How much priority an IP address gets versus another.
How is the weight represented in numbers
between zero and 255
Zero weight
No traffic
If you have 3 IP addresses weighted at 100 each
Traffic will be spread evenly among them
Allows you to reply with a certain IP address depending on where in the world the request is coming from
Geolocation Policy
Replies with the IP address of AWS resource that have the lowest latency, or the fastest response time to the user,
Latency Policy
You have the ability to point traffic at a single IP address, say a server that hosts your website, but if that server goes offline
Failover policy
This will point your website somewhere else route 53 does the detection if primary is online or not and point users to this
Failover Target
Replies with multiple, healthy values for the domain that gets queried
Multivalue Answer policy
These numbers: 10, 172, dot 16 to 3`1 or 192 dot 68
For private networks
Allows you to create a virtual network for your AWS services to exist in a local IP address range, using a local network.
Virtual Private Cloud
You need this if you want your virtual machines to access the internet
NAT Gateway
You need this to access your EC2 instances via the internet
Internet Gateway
This controls which traffic is allowed into and out of your VPC network
Access Control Lists
ACL
Service that delivers data, videos, applications and websites to customers globally with low latency and high transfer speeds.
CloudFront
Locations around the word where they can serve your website with CloudFront
Edge Locations
How does CloudFront Work
When a client requests something from your website, it actually accesses CloudFront first and CloudFront automatically redirects the request of the file that you want to the nearest edge location.
How long are files stored at an edge location
For a period of time specified by you.
CloudFront feature that gives you the ability to run your Lambda code at these edge locations instead of back in the region you operate in.
Lambda at Egde
The advantage of Lambda at Edge
Reduces latency and improves performance massively keeping your compute closer to the users requesting it,
The pricing model of CloudFront
Pay as you go pricing with no minimum fees.
Amazon’s content delivery network that speeds up your website, secures it and protects it
Amazon CloudFront
