Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 157 discussion

This is another tricky question as most will start thinking about how to get a list of IP addresses of the hundreds of ALBs. A static IP address serves as a single point of contact for clients, and Global Accelerator then distributes incoming traffic across healthy endpoints. We can use the single IP in the Firewall allow list. So the correct option is C.

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Answer is C because cross-region load balancing is not supported without VPC peering, and B does not say anything about VPC peering

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assist lower the number of IPs that the firewall must accept or AnyCast IP -> Usually associated with Global Accelator

AWS Global Accelerator is a network layer service in which you create accelerators to improve availability and performance for internet applications used by a global audience. https://docs.aws.amazon.com/global-accelerator/latest/dg/what-is-global-accelerator.html

Ans: C B is wrong, because IP of ALB is always changing.

Answer is C: "Simplified global traffic management" "As your application grows, the number of endpoints and IP addresses that you need to manage increases and becomes burdensome". "As you update your application, to add or remove endpoints, you risk lowering availability of your application due to firewalls, hardcoded devices and allow-lists not having the latest information". "AWS Global Accelerator simplifies global traffic management by providing 2 static anycast IP addresses that only need to be configured by users once. Behind these IP address you can add or remove AWS origins, opening up uses such as endpoint failover, scaling, or testing without any user-side changes." https://aws.amazon.com/global-accelerator/

C. Launch AWS Global Accelerator and create endpoints for all the Regions. Register all the ALBs in different Regions to the corresponding endpoints.

Because they take IP list, it is only can in Global Acclerator.

Yep C. Stick a global accelerator in front with all the albs behind it

Answer is C https://docs.aws.amazon.com/global-accelerator/latest/dg/what-is-global-accelerator.html: "By default, Global Accelerator provides you with two static IP addresses that you associate with your accelerator. With a standard accelerator, instead of using the IP addresses that Global Accelerator provides, you can configure these entry points to be IPv4 addresses from your own IP address ranges that you bring to Global Accelerator"

If it was NLB we could have said elastric IP but since it is ALB so it has to be Global accelerator C for sure

Ans = C

multi regional. IPs. allow list.. = accelerator. answer is C

Answer: C

Answer is C