AWS Certified Sysops Administrator Associate · Free Practice Question Medium
Question 10
A video streaming solutions provider is migrating to AWS Cloud infrastructure for delivering its content to users across the world. The company wants to make sure that the solution supports at least a million requests per second for its EC2 server farm.
As a SysOps Administrator, which type of Elastic Load Balancer would you recommend as part of the solution stack?
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A
Application Load Balancer
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B
Infrastructure Load Balancer
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C
Network Load Balancer
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D
Classic Load Balancer
Reveal correct answer
Correct answer: C
Explanation
Correct option:
Network Load Balancer
Network Load Balancer is best suited for use-cases involving low latency and high throughput workloads that involve scaling to millions of requests per second. Network Load Balancer operates at the connection level (Layer 4), routing connections to targets - Amazon EC2 instances, microservices, and containers – within Amazon Virtual Private Cloud (Amazon VPC) based on IP protocol data.
Incorrect options:
Application Load Balancer - Application Load Balancer operates at the request level (layer 7), routing traffic to targets – EC2 instances, containers, IP addresses, and Lambda functions based on the content of the request. Ideal for advanced load balancing of HTTP and HTTPS traffic, Application Load Balancer provides advanced request routing targeted at the delivery of modern application architectures, including microservices and container-based applications.
Application Load Balancer is not a good fit for the low latency and high throughput scenario mentioned in the given use-case.
Classic Load Balancer - Classic Load Balancer provides basic load balancing across multiple Amazon EC2 instances and operates at both the request level and connection level. Classic Load Balancer is not a good fit for the low latency and high throughput scenario mentioned in the given use-case.
Infrastructure Load Balancer - There is no such thing as Infrastructure Load Balancer and this option just acts as a distractor.
Reference:
https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html
Discussion
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