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Flashcards in HA Arch Deck (13)
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1
Q

What are three different types of load balancers

A

Application
Network
Classic

2
Q

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

A

the application - web server or DB server

3
Q

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

A

X-Forward-For header

4
Q

How are Instances monitored by ELB?

A

Inservice, Outofservice

5
Q

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

A

No, Load balancers only use their DNS name

6
Q

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

A

Sticky sessions

7
Q

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

A

cross zone load balancing

8
Q

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

A

Path patterns

9
Q

What AWS service allows you to script you cloud env?

A

Cloudformation

10
Q

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

A

Quick start

11
Q

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

A

Application load balancers

12
Q

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

A

Network

13
Q

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

A

Classic