Elastic Load Balancing

Question 1

What happens when cross-zone load balancing is enabled?

Answer 1

Each load balancer node distributes traffic across registered targets in all enabled Availability Zones

Question 2

What happens when cross-zone load balancing is disabled?

Answer 2

• Each load balancer node distributes traffic only across registered targets in Availability Zone.
• W/ Application Load Balancers, cross-zone load balancing is always enabled
• W/ Network Load Balancers & Gateway Load Balancers, disabled by default

Question 3

What are Sticky Sessions?

Answer 3

Makes sure all user requests during session are directed to same server.