AWS Elastic Load Balancer Flashcards
___________ allows the incoming traffic to be distributed automatically across multiple healthy EC2 instances.
Elastic Load Balancing
ELB serves as a ______ point of contact to the client
single
ELB can offload the work of ______ and ______ (SSL termination) so that the EC2 instances can focus on their main work
Encryption; Decryption
ELB offers integration with _________, which ensures enough back-end capacity available to meet varying traffic levels
Auto Scaling
[True/False]
ELBs are engineered not to be a single point of failure
True
Elastic Load Balancer, by default, routes each request independently to the registered instance with the ________ load.
smallest
Load Balancers only work across ______.
Availability zones
Each ELB is allocated and configured with a _____ capacity.
default
ELB _______ is the service which stores all the configuration and also monitors the load balancer and manages the capacity that is used to handle the client requests.
controller
As the traffic profile changes, the controller service scales the load balancers to handle more requests, scaling ______ in all AZs.
equally
ELB increases its capacity by either scaling _____ or scaling ______.
up; out
_____ handles the scaling of the actual ELB capacity.
AWS
Scaling of the EC2 instances that the ELB routes its request to is handled by _________.
Auto Scaling
Time required for Elastic Load Balancing to scale can range from ___ to ___ minutes, depending on the changes in the traffic profile
1; 7
ELB works best with _______ increase in traffic
gradual
