AWS Solutions Architect Associate SAA-C01 To SAA-C02 What's The ...

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AWS Solutions Architect Associate SAA-C01 to SAA-C02 what's the difference ...?

Back in late 2019 I sat for the BETA version of the new AWS Certified Solutions Architect Associate certification (SAA-C02). AWS have a long history of making slow and incremental changes on their exams and only very rarely do big changes occur.

It's also unusual for an exam code to change - which generally suggests either a sweeping change in focus, or an adjustment or alteration of the topics which the test covers.

I've previously created online training courses for the SAA-C01 exam so I jumped at the chance to take the BETA so I could personally assess the differences for myself.

👀 TL;dr - My estimation is about a 30% change in topics (this is either additions, changes or removals from the topics covered). Of the 70% which remains my feeling was that AWS had refocussed the questions and answers to be much more focussed on architecture. It felt like the exam was less about numbers and facts and more about appropriate implementationof AWS products and services 👀

🚨 Full Disclosure 🚨

I create online training courses for AWS, I'm even making one for this very exam https://learn.cantrill.io/p/aws-certified-solutions-architect-associate-saa-c02. AWS created a whole new exam code for this change - As a response, I felt it needed a whole newly designed course. Those of you who know me, know I'm always straightforward , there was a need for something new .....Thats why I've created the above course.

🚨 End Disclosure :) 🚨

Let's quickly step through some of the specifics - in this article I'll focus on the differences in an attempt to keep this brief, but I'll be doing a full overview of the SAA-C02 exam coverage in another post very soon (ill edit this one with a link ASAP)

COMPUTE

NETWORKING

(Tl;dr) The networking questions were MUCH harder than SAA-C01. I've previously created a networking speciality course and it felt like from a networking perspective the exam was edged a little closer to that difficulty.

You need to understand the HA profile of Nat Instance vs Gateway. Which (if any) is HA in the AZ, which (if any) is HA (if any) across AZs. How can you create a HA architecture with both which can withstand X AZ Failure. The depth of knowledge required seemed more than SAA-C01.

I had questions which probed VPN vs Direct Connect. More depth than I had experienced on SAA-C01 before. They focussed on speed of provisioning, and performance profiles of each.

I also had questions which were really tricky and curveball-ish. They posed scenarios which tested if you know that if you have a directconnect active .. this means you also have a Virtual Private Gateway active .. which influenced the answer you picked. Again, this seemed much wider in scope than SAA-C01.

Gateway and Interface endpoints featured and seemed more in-depth than on SAA-C01. Both in terms of raw technical knowledge AND their application within architectures.

Resource Access Manager (RAM) - sharing resources. In my experience when the last major update of SAA-C01 happened, this was still not featuring that much. In SAA-C02 I had 2 questions on it. What could be shared and to where. What limitations there are - to the account sharing, and the account being shared too.

Private link featured in a few questions and I haven't experienced this as much in SAA-C01 exams before.

Architecture wise ..there were questions on how to appropriately secure a multi-tier architecture ... something i've seen on the SA Pro before .. but now on the SAA-C02.

STORAGE

(Tl;dr) S3 changes accounts for a good amount of the 30% exam differences which I have been estimating.

There was MUCH MUCH more S3 coverage on the exam - or that's how it felt. I came out of the exam and told a friend that as much as 30-35% of the exam felt like it was on S3 directly, and another 10% or so was S3 related. This feels like a coverage shift from the SAA-C01 which had a good amount of S3, but much less in comparison.

Knowledge of S3 storage classes is essential, it felt like questions were more focussed on 'scenarios' - so when you WOULD and WOULDN'T use each of the various storage classes. Also the minimum size and duration played more of a part in questions than i remember from my SAA-C01 review about a year before.

The coverage of FSx was also expanded. I recall questions on the C02 exam which required more detailed knowledge than I expected. This is a product growing in importance so this makes sense.

Questions which tested understanding the performance limits of S3 ... there were questions which provided requirements in terms of transactions per second, you need to know where this fits ... in terms of S3's capability .. can S3 provide XXX performance level.

S3 encryption featured more heavily .. and the knowledge required was deeper. SSE-S3 and SSE-KMS differences for example .. and SSE-C.

Performance of instance store, EBS and S3 ... given a certain IOPS .. which would you pick. Again, this seemed much more detailed and architecturally focussed than on the SAA-C01 exam.

DATABASES

(tl;dr) new database stuff featured...and it felt like Aurora related questions featured more. I also felt this was more difficult.

Historically it felt like the SAA-C01 exam didn't really focus on DDB, DynamoDB related questions featured in the dev associate and sysops associate. The SAA-C02 exam has more DDB questions than expected.

Aurora and Aurora Serverless made a more substantial appearance than I had expected. Much more so than I have previously seen on the SAA-C01 exam.

You need to know about all of the HA functionality, how to read and write scale the databases and the things to look out for as predictors of when scaling is needed. How RDS and Aurora can read scale ... chained replicas ... more replicas.

What causes DB performance issues for customers .. CPU/MEMORY/DISKIO .. how to identify.

IAM & Accounts

(Tl;dr) it felt like ORGS and Multi-Account stuff featured more than SAA-C01 but overall the IAM coverage wasn't significantly different than SAA-C01.

Architecture

(Tl;dr) a few areas (below) seemed to be deeper, as in require more knowledge.

SQS as a decoupling architecture - allowing one part of an architecture not to be held up by another.

S3 events … how do they link in with SNS and SQS. If you want TWO different things to happen when an object is uploaded how is this architected …

How to architect HA in region - vs - How to Architect HA globally.

Global HA … S3 transfer acceleration, cross region replication, cloud front + S3

How does R53 work, how does it integrate with other services

Knowledge of Latency/Geo DNS routing - more so than SAA-C01

SQS vs Kinesis ... there was a question about picking between the two which felt like it belonged more on the SA Pro exam.

Security

(Tl;dr) The security coverage seemed to be on the same areas as SAA-C01 .. but it felt like more knowledge of WAF was required, specifically around ACL architecture. Also .. more KMS ... mainly how KMS encryption works for various products - and when you CAN and CAN'T use it based on business requirements.

WHAT I DIDN'T HAVE ON THE EXAM

Lightsail, ECR,EKS, Serverless App Repository, Elasticache, Neptune, Amazon QLDB , Amazon DocumentDB, AWS Migration HUB, Application Discovery Service, AWS App Mesh, AWS CloudMap, Code*, XRAY, Robomaker, AWS IQ, Managed Services, Amazon Managed Blockchain, Ground Station, Service catalog, Trusted Advisor, Control Tower, License Manmager, Well Architected Tool, Personal Health Dashboard, AWS Chatbot Sagemaker (but maybe understand what it is/does), Comprehend (as above), Deep Lens (as above), Lex (as above), Machine learning, Polly (as above), Recognition (as above), Transscribe (as above), Translate (as above), Personalise, forecast, text tract & deep racer (as above), Cloudsearch, Elasticsearch, Quicksight, AWS Glue, AWS Lake Formation ,MSK ,Inspector ,Macie, Certificate Manager, Amplify, Mobile HUb, App Sync, Device Farm, Sumerian, Event Bridge, Amazon MQ, SQF, Connect, Pinpoint

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daniel jhon 5y

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🚨 Full Disclosure 🚨

🚨 End Disclosure :) 🚨

COMPUTE

NETWORKING

STORAGE

DATABASES

IAM & Accounts

Architecture

Security

WHAT I DIDN'T HAVE ON THE EXAM

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