"predictable capacity and uptime requirements" means "Reserved" "sockets and cores" means "dedicated host"

BYOL >>> Dedicated Hosts

A. Dedicated Reserved Hosts Here's why: License Flexibility: Dedicated Reserved Hosts allow the company to bring their existing licenses to AWS. This option enables them to continue using their purchased licenses without any additional cost or licensing changes. Cost Optimization: Reserved Hosts offer significant cost savings compared to On-Demand pricing. By purchasing Reserved Hosts, the company can benefit from discounted hourly rates for the entire term of the reservation, which typically spans one or three years.

I work with COTS applications they require a three tier architecture, its completely irrelevant and confusing to add that to the question, the key word here is licenses, since AWS wants your to use their solutions the answer to this is which of one the options solves this particular problem, in this case its dedicated hosts.

What is difference between dedicated host and reserved instance? Dedicated Instance: The physical machine or underlying hardware is reserved for use for the whole account. You can have instances for different purposes on this hardware. Dedicated Host: The physical machine or the underlying hardware is reserved for "Single Use" only, eg. a certain application.

Actually the question is a bit ambiguous because there ARE "software licensing model using sockets and cores" that accept virtual sockets are cores as the base, for which C would work. But most of these license models are based on PHYSICAL sockets, thus A.

Dedicated Hosts give you visibility and control over how instances are placed on a physical server and also enable you to use your existing server-bound software licenses like Windows Server

Easy with one, but only 79% up to now answered correctly. It is A. Reserved because of the predictable and sockets and cores means dedicated host.

The correct answer is C. Dedicated Reserved Instances. Dedicated Reserved Instances (DRIs) are the most cost-effective option for workloads that have predictable capacity and uptime requirements. DRIs offer a significant discount over On-Demand Instances, and they can be used to lock in a price for a period of time. In this case, the company has predictable capacity and uptime requirements because the software has a software licensing model using sockets and cores. The company also wants to use its existing licenses, which were purchased earlier this year. Therefore, DRIs are the most cost-effective option.

I don't agree with people voting "A". The question reference that the COTS Application has a licensing model based on "sockets and cores". The question does not specify if it means TCP sockets (= open connections) or hardware sockets, so I assume that "TCP sockets are intended". If this is the case, sockets and cores can also remain stable with reserved instances - which are cheaper than reserved hosts. I would go with "A" only if the question would clearly state that the COTS application has some strong dependency on physiscal hardware.

Bring custom purchased licenses to AWS -> Dedicated Host -> C,D out Need cost effective solution -> "reserved" -> A

A https://www.examtopics.com/discussions/amazon/view/35818-exam-aws-certified-solutions-architect-associate-saa-c02/

Dedicated Host Reservations provide a billing discount compared to running On-Demand Dedicated Hosts. Reservations are available in three payment options. https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/dedicated-hosts-overview.html

A is the most cost effective