HA Arch Flashcards
What are three different types of load balancers
Application
Network
Classic
You get a 504 error. What should you look at first
the application - web server or DB server
You need the IPv4 address of your end user. What do you need?
X-Forward-For header
How are Instances monitored by ELB?
Inservice, Outofservice
Your developer created an application and need the DNS name for the load balancer. Is that a problem
No, Load balancers only use their DNS name
What enables users to stick to the same instance when using a load balancer?
Sticky sessions
What would you enable to load balance across multiple availability zones?
cross zone load balancing
What enables you to direct traffic based on a URL contained request?
Path patterns
What AWS service allows you to script you cloud env?
Cloudformation
What can you use to quickly spin up a complex env?
Quick start
What load balancer should you use for production that will make intelligent routing decisions?
Application load balancers
What load balancer should you use when high performance is required?
Network
What load balancer should you use when cost is a concern.
Classic
