HA Arch

Question 1

What are three different types of load balancers

Answer 1

Application
Network
Classic

Question 2

You get a 504 error. What should you look at first

Answer 2

The application - web server or DB server

Question 3

You need the IPv4 address of your end user. What do you need?

Answer 3

X-Forwarded-For header

Question 4

How are Instances marked when monitored by ELB?

Answer 4

Inservice, Outofservice

Question 5

Your developer created an application and need the DNS name for the load balancer. Is that a problem?

Answer 5

No, Load balancers only use their DNS name

Question 6

What enables users to stick to the same instance when using a load balancer?

Answer 6

Sticky sessions

Question 7

What would you enable to load balance across multiple availability zones?

Answer 7

Cross-zone load balancing

Question 8

What enables you to direct traffic based on a URL contained request?

Answer 8

Path patterns

Question 9

What AWS service allows you to script you cloud env?

Answer 9

Cloudformation

Question 10

What can you use to quickly spin up a complex env?

Answer 10

Quick start

Question 11

What load balancer should you use for production that will make intelligent routing decisions?

Answer 11

Application load balancers

Question 12

What load balancer should you use when high performance is required?

Answer 12

Network

Question 13

What load balancer should you use when cost is a concern.

Answer 13

Classic