DEV Community: Amruthavalli Chivukula

Microsoft SC-900: How I Replaced Memorization With Reasoning and Passed in Under a Month

Amruthavalli Chivukula — Sun, 09 Aug 2026 19:22:51 +0000

Category	Details
Certification	Microsoft Certified: Security, Compliance, and Identity Fundamentals
Exam	SC-900
Date of exam	July 30, 2026
Score	768/1000
Preparation time	<1 month of effective preparation
Result	Passed

When I first started preparing for the Microsoft SC-900 certification, I had one thing going for me: I wasn't new to cybersecurity.

I already had the ISC² Certified in Cybersecurity(CC) certification, so concepts like the CIA triad, least privilege, Zero Trust, identity, and basic security principles weren't exactly new territory.

What was new was Microsoft's way of putting all of those concepts together.

And, as I discovered, that distinction matters.

Why SC-900?

My original plan for the end of the year was to pursue the Microsoft Azure Security Engineer Associate(AZ-500).

Then AZ-500 was retired and transitioned into the new SC-500: Microsoft Certified: Cloud and AI Security Engineer Associate.

That made me pause.

If I was eventually going to pursue a Microsoft security certification at the associate level, I realized that I didn't really have the background context for how Microsoft approached security.

I understood cybersecurity.

I didn't necessarily understand Microsoft's security ecosystem.

Around the same time, I had an opportunity to use a certification voucher from Microsoft's AI Skills Fest. I wasn't even sure how much time I would have to use the voucher, so rather than waiting until the end of the year, I decided to take a foundational exam first.

That led me to SC-900.

The original plan was actually quite conservative: prepare throughout the summer and potentially take the exam by the end of August.

That plan didn't survive July.

I Already Knew Cybersecurity. I Didn't Know Microsoft's Vocabulary.

When I first looked through the SC-900 study material, a lot of it felt familiar.

CIA triad?

Familiar.

Least privilege?

Familiar.

Zero Trust?

Familiar.

Identity as a security perimeter?

Familiar.

That made sense. ISC² CC is cloud-agnostic, whereas SC-900 is tied specifically to Microsoft's ecosystem. I expected there to be Microsoft-specific interpretations and implementations of concepts I already knew.

What I didn't fully anticipate was just how terminology-heavy the exam would be.

At one point, I came across someone's experience of SC-900 being essentially a "dictionary of Microsoft technologies."

That description stuck with me.

Because it was, in a way, accurate.

The underlying security concepts weren't necessarily difficult.

The difficult part was figuring out which Microsoft technology owns which security problem.

The Hardest Part Was Mapping the Products

The first major challenge for me was understanding the boundaries between Microsoft's security products.

Take the Defender family.

Defender for Endpoint.

Defender for Cloud.

Defender for Cloud Apps.

Defender for Office 365.

They all contain the word "Defender", but they are not interchangeable.

I had to build a mental map of the ecosystem.

A simplified version eventually looked something like this:

Microsoft Defender for Endpoint → endpoint/device security
Microsoft Defender for Cloud → cloud infrastructure and security posture
Microsoft Defender for Cloud Apps → cloud/SaaS application visibility and control
Microsoft Defender for Office 365 → email and collaboration security
Microsoft Entra ID → identity and access
Microsoft Purview → data governance, compliance, information protection and related capabilities
Microsoft Sentinel → security information and event management, correlation, and automated response

The important part wasn't memorizing that list.

It was understanding why each product belonged where it did.

For example:

An employee logs into their corporate laptop.

Microsoft Entra ID handles the identity.

Conditional Access evaluates whether the sign-in should be allowed and whether additional controls such as MFA are required.

The employee receives a suspicious email.

Defender for Office 365 is relevant.

They click the malicious attachment and the laptop becomes infected.

Now Defender for Endpoint becomes relevant.

They then attempt to upload confidential company information to Dropbox.

Now you're dealing with cloud application activity, data classification, and potentially Data Loss Prevention.

And Microsoft Sentinel can correlate those individual signals into a broader security incident.

Once I started thinking in terms of security scenarios rather than isolated product definitions, the ecosystem became much easier to understand.

Why I Chose a Reasoning-First Approach

This wasn't actually a new learning technique for me.

When I was preparing for the Google Cloud Associate Cloud Engineer certification, I found that I learned technical concepts much better when I understood the reasoning behind them instead of simply memorizing what the correct answer was.

So I deliberately brought the same approach into SC-900.

Whenever I encountered a practice question, I wanted to answer it based on my reasoning first.

If I got it wrong, the goal wasn't simply:

"Okay, the correct answer is Microsoft Defender for Cloud Apps."

The goal was:

"Why did I think my answer was correct, and exactly where did that reasoning break?"

That distinction made a huge difference.

A wrong answer became useful because it showed me where my mental model was incomplete.

The scenario-based questions were particularly effective.

Instead of asking myself:

"What does Defender for Cloud Apps do?"

I could ask:

"An employee is using a SaaS application outside the Azure infrastructure. Something suspicious is happening there. Which security boundary am I dealing with?"

That made the product much easier to place.

My Practice Scores Were a Story of Their Own

My first practice assessment was around 50%.

Then something interesting happened.

After studying a little, my score actually dropped to around 32%.

At first, that was frustrating.

But looking back, it made sense.

I was no longer blindly guessing. I was discovering just how many concepts I hadn't actually mapped correctly.

From there, the scores gradually started moving:

50 → 32 → 35 → 62 → 75 → 84 → 90 → 100

The important thing wasn't the final 100%.

It was the progression.

Every assessment gave me more information about where my understanding was weak.

When I got something wrong, I would read the explanation and then go back to my reasoning.

I would essentially ask:

"Here's what I thought. Why is that reasoning wrong?"

That was much more effective for me than simply reading the explanation and moving on.

There were occasional questions where I had simply read too quickly and missed a detail, but most of the mistakes were genuine gaps in understanding.

And those were the mistakes I wanted.

Because a mistake that exposes a gap is something you can fix.

The Problem With Getting Too Good at One Practice Test

Eventually, my Microsoft practice assessment scores started reaching the 90–100% range consistently.

That sounds great.

But it also made me suspicious.

I realized I was beginning to recognize Microsoft's question patterns.

I would see a keyword and immediately associate it with an answer.

That's useful to a point, but it isn't necessarily evidence that you've learned the concept.

So I deliberately changed the environment.

I moved to third-party practice papers through Udemy Business.

The first paper was completely unfamiliar.

Different wording.

Different question construction.

Different context.

And I scored 80% — 32 out of 40.

That was actually reassuring.

Because I had gone in blind, and the questions were forcing me to read properly rather than hunt for familiar keywords.

I eventually completed another paper and scored around 82%.

That gave me much more confidence than another perfect score on a familiar Microsoft practice assessment would have.

It told me that I could transfer the knowledge to unfamiliar questions.

I Also Learned Not to Treat Every Mistake the Same Way

One thing I became much better at during preparation was separating mistakes into two categories.

1. "I don't know this."

This is a knowledge gap.

Go back.

Understand it.

Fix the mental model.

2. "I knew this, but I didn't read the question properly."

This is an execution problem.

Slow down.

Look for qualifiers.

Read the entire question.

That distinction became particularly important as my scores improved.

When you're getting 80% or 90%, the remaining mistakes aren't necessarily all evidence that you don't understand the material.

Some are simply evidence that you rushed.

I Didn't Want to Spend Three Months Preparing for a Fundamentals Exam

Originally, I had given myself until August 31.

There wasn't a particularly scientific reason for that date.

It was simply a safe upper bound.

But as July progressed, I realized I could probably finish much sooner.

There was another reason I wanted to finish in July.

Around the same time, I had made a broader decision about how I wanted to approach my career development:

Every month needs to produce at least one tangible outcome.

It could be a certification.

It could be a blog.

It could be a project.

It could be anything concrete.

But I didn't want to remain in a course-taking phase where I was constantly consuming material without producing anything.

So I decided SC-900 needed to become a July outcome.

On July 23, I booked the exam for July 30.

I gave myself July 31 as a contingency.

By then, my reasoning was basically:

I know enough.
My scores are consistently strong.
I need a real deadline.

That combination was enough.

Exam Day

The actual exam was different from the practice assessments.

Not necessarily impossible.

Just less straightforward.

The questions were not always phrased in the same way as the practice material, and there were definitely topics I hadn't expected to see.

That was one reason I was glad I had done third-party practice papers.

They had already taught me that I couldn't rely on one particular wording pattern.

I also went into the exam with a realistic expectation:

I was never going to feel 100% confident.

I don't think that's a useful expectation for certification exams anyway.

Instead, I used a three-pass approach.

Pass 1

Go through the entire exam.

Answer what I knew.

Mark anything where I wasn't confident.

Pass 2

Return to the marked questions.

Use the underlying concepts and reasoning to eliminate uncertainty.

Pass 3

Review whatever remained, then do one final pass through the entire exam.

I actually used the full amount of time available to me.

I didn't submit early just because I had reached the end of the questions.

And that turned out to be important psychologically as well.

I wasn't trying to prove that I could finish quickly.

I was trying to make the best decision I could with the time available.

The Result

768 / 1000.

I passed.

And yes, I was happy.

But my immediate reaction was surprisingly practical:

"Great. That's behind me. Now I can move forward."

There was also a very satisfying feeling of having actually made good use of the certification voucher.

I hadn't wasted it.

I had turned it into something tangible.

Could the score have been higher?

Absolutely.

There were areas I could have prepared better.

Windows Hello for Business was one example, along with some related identity topics that appeared more prominently in the actual exam than they had during my preparation.

But considering that my effective preparation time was less than a month, I'm satisfied with the result.

More importantly, I know exactly where the remaining gaps were.

What I Would Do Differently

If I were starting SC-900 again, I would change one thing.

I would give the initial coursework pass a little more attention.

I did go through the material, but once the reasoning-first practice started working, I became much more focused on strengthening the concepts that were appearing repeatedly in practice questions.

That worked for the exam.

But there were still some topics that I hadn't explored as thoroughly as I could have.

So my ideal approach would be:

First, understand the entire syllabus at least once.

Then start practicing early.

Don't wait until you've "finished studying" before taking your first practice test.

The practice questions themselves are part of the learning process.

What I Would Recommend to Someone Preparing for SC-900

If you already understand basic cybersecurity concepts, I don't think SC-900 needs to become a three-month project.

For me, a month and a half would have been an upper limit even while working full-time.

The exact timeline will obviously depend on your background, but I would recommend the following approach.

1. Go through the entire syllabus once

It doesn't have to be the same format for everyone.

For me, a slide deck worked.

For someone else, it might be Microsoft Learn, a video course, a study guide, or a cram resource.

The format doesn't matter as much as making sure you understand what is actually in the exam.

2. Start practice questions early

Don't wait until you feel completely prepared.

Practice questions will expose gaps that passive studying won't.

3. Reason before looking at the answer

Ask:

What is happening?

What security problem is being described?

Which security boundary does it belong to?

Which Microsoft product is responsible for that boundary?

Then choose your answer.

4. When you're wrong, understand why

Don't just memorize the correct option.

Figure out the flaw in your reasoning.

That is where the learning happens.

5. Don't rely on a single question bank

Once you're consistently scoring well on one resource, change resources.

Different platforms phrase questions differently.

That unfamiliarity is useful.

It forces you to understand the concept rather than memorize the pattern.

6. Don't panic when you encounter unfamiliar questions

You won't know everything.

That's normal.

Use what you already know.

Eliminate obviously wrong options.

Reason through the scenario.

And if you're still unsure, mark the question and come back to it.

What SC-900 Gave Me

For me, passing SC-900 wasn't just about adding another certification to my profile.

It gave me three things.

First, it gives me the runway to pursue Microsoft's more advanced security certifications in the future.

Second, I now have a much better understanding of Microsoft's security posture and how its security products fit together.

And third, it gave me a personal milestone that I didn't expect to value quite as much:

I now know that if I already understand the underlying concepts, I can prepare for a fundamentals-level technical certification in roughly a month using a reasoning-first approach.

That's useful knowledge about myself as a learner.

The Takeaway

Before I started SC-900, I had read someone's description of the exam as feeling like a dictionary of Microsoft technologies.

I understand why they said that now.

SC-900 is terminology-heavy.

It is technology-heavy.

You're constantly mapping security use cases to specific Microsoft products and features.

But I don't think the answer is to memorize the dictionary.

My biggest takeaway from this entire preparation journey is much simpler:

Reason your way through it.

If you don't understand something, reason about it.

If your answer is wrong, figure out where your reasoning broke.

If a product is confusing, understand the security boundary it is responsible for.

If a practice question looks unfamiliar, strip away the terminology and identify the underlying security problem.

And practice.

A lot.

My preparation mantra going forward is going to be:

Reasoning first. Practice papers early. Multiple resources.

SC-900 was never meant to be the destination. It was the foundation I wanted before moving toward Microsoft's associate-level security certifications and, ultimately, deeper cloud security work.

Resources

I didn't stick to one set of resources, having said that, I'm mentioning all of the resources that I used. The point is, don't stick to one resource, adapt as you go.

Microsoft Learn / official study material
Microsoft practice assessments
Udemy Business third-party practice papers
Scenario-based reasoning/practice with help from AI

Closing

I'd love to hear your thoughts in the comments. If you're also someone heading in a similar direction, lets connect and swap stories.

I Started GCP ACE to Learn Cloud. It Taught Me How to Learn.

Amruthavalli Chivukula — Sun, 28 Jun 2026 19:04:20 +0000

When I started preparing for the Google Cloud Platform (GCP) Associate Cloud Engineer (ACE) certification, I thought my biggest challenge would be learning Google Cloud.

I was wrong.

The hardest part was realizing that I was studying in a way that created the illusion of progress without building enough understanding.

In April 2026, I passed the Google Cloud Certified Associate Cloud Engineer exam. But this article isn't another guide on how to pass ACE.

It's about the mistakes I made, the assumptions I had to unlearn, and the changes in my preparation strategy that ultimately helped me succeed.

A little about me: I'm a Software Engineer at a fintech company with almost a year of experience, and ACE was my first associate-level cloud certification. If you're preparing for ACE—or any technical certification—I hope my experience helps you avoid some of the mistakes I made and gives you a preparation strategy that's focused on understanding rather than just completing courses.

In one sentence: My ACE journey went from too many resources → passive learning → false confidence → rebuilding my study strategy → passing the exam with a much deeper understanding of cloud.

Why I Chose GCP ACE

When I started preparing for the Google Cloud Associate Cloud Engineer (ACE) certification, I was not specifically aiming to become a cloud engineer.

At that point, I had already explored two adjacent domains through certifications. I had completed the ISC2 Certified in Cybersecurity (CC) certification, which gave me exposure to security fundamentals, and Microsoft Azure AI Fundamentals (AI-900), which introduced me to the core ideas of artificial intelligence and machine learning.

But something was missing.

Cloud.

The more I explored these areas, the more I realized that cloud was becoming the layer connecting everything else. Security was increasingly being implemented through cloud platforms. AI workloads were being built and deployed using cloud infrastructure. Even modern applications were becoming deeply connected to cloud technologies.

If I wanted a broader understanding of modern technology, cloud felt like the natural next step.

Around the same time, my organization had an Emerging Talent initiative that encouraged employees to pursue certifications and continuous learning.

A few months into my first team, I had a conversation with my manager about the areas I wanted to explore. I explained that I was interested in understanding cloud technologies and building a stronger technical foundation.

Since our organization was heavily invested in Google Cloud, my manager suggested looking into Google Cloud certifications.

That was when ACE entered the picture.

After researching the certification, I realized that ACE was not a fundamentals-level exam. It was an associate-level certification that expected candidates to understand how cloud resources are deployed, managed, secured, and operated in real-world scenarios.

That challenge appealed to me.

At the time, I was not thinking about cloud security, career roadmaps, or long-term specialization. I simply wanted to understand cloud well enough to connect the dots between the technologies I was already exploring.

Looking back, that decision ended up shaping far more of my career direction than I initially expected.

My First Mistake: More Resources ≠ Better Preparation

One of the biggest challenges I faced during my ACE journey was that I had never prepared for an associate-level cloud certification before.

I was not starting completely from scratch. My organization provided access to several learning platforms, and I was fortunate enough to have access to a wide range of resources.

Like many beginners, my first instinct was simple:

More resources must mean better preparation.

I started with a Google Cloud course delivered through Pearson. Alongside that, I used Pluralsight for additional learning material and practice papers. I also worked through a Udemy course to get a different perspective on the same concepts.

At the time, this felt like a solid strategy.

If one course explained a topic, surely three courses would explain it better.

For documentation and revision, I adopted a fairly fragmented approach. I would take screenshots of presentation slides, save snippets of information that seemed important, and gradually build my own collection of study material.

The intention was good. I wanted to make sure I did not miss anything important.

Looking back, I had accumulated a lot of information.

Whether I had actually learned it was a different question.

One advantage I did have was prior exposure to Google Cloud through Google Arcade. Before starting ACE preparation, I had already completed several hands-on labs and challenges. This gave me a rough mental model of how different Google Cloud services fit together.

I was not an expert, but I was not seeing everything for the first time either. I could recognize major building blocks and understand where different services belonged within the broader Google Cloud ecosystem.

That familiarity helped because I was not trying to learn every service from scratch while preparing for the certification.

As my preparation progressed, another factor entered the picture: a study partner.

Since we were both part of the same Emerging Talent initiative and preparing for ACE, collaborating seemed like the obvious choice. We created shared notes and documents where we uploaded useful information, summaries, screenshots, and resources we discovered.

In theory, it was an excellent system.

In practice, I eventually realized something important.

Just because information existed in a shared document did not mean I was actively learning it.

The document was growing, but understanding was not necessarily growing at the same pace.

Our study sessions were built around dedicated time blocks during work hours. Initially, we were disciplined about protecting those sessions and making consistent progress. As our workloads increased, the available time naturally became harder to maintain, and our preparation had to adapt around day-to-day responsibilities.

At this stage, my preparation strategy was built around a few assumptions:

Complete as many learning modules as possible.
Take detailed notes.
Watch multiple courses.
Build familiarity with services and features.
Complete practice papers near the end.

Most importantly, I believed that finishing learning content was the same as making progress.

I did not realize it yet, but certification preparation is not about completing courses.

It is about building enough understanding to reason through unfamiliar scenarios.

That realization would come much later.

Another assumption I carried was that a handful of practice papers near the end would be enough.

Looking back, I underestimated how important question exposure would become.

Understanding concepts is essential, but certifications are also a skill in themselves. The more scenarios, question patterns, and exam-style situations you encounter, the better you become at identifying what the question is actually testing.

One of the biggest lessons I learned from ACE was this:

Practice papers are not something you do after you are ready.
They are one of the tools that help you become ready in the first place.

The Hidden Trap of Collaborative Learning

For the first few months of my preparation, everything felt like it was going according to plan.

I started studying in October. October, November, and December were dedicated almost entirely to coursework, note-taking, and building familiarity with Google Cloud services. My study partner and I were progressing steadily through the material, maintaining our shared notes, and covering topics consistently.

The real challenge began in January.

That was when I planned to transition from learning content to solving practice questions.

Initially, things looked promising. I used practice papers from Pluralsight and Udemy and started scoring surprisingly well. In some cases, I was getting close to perfect scores.

At first, I interpreted those results as proof that my preparation was working.

Looking back, I think I misunderstood what was actually happening.

Many of the question banks reused similar questions or variations of questions I had already seen before. Without realizing it, I had started recognizing patterns rather than reasoning through concepts.

I would see a question and immediately know which answer to select.

The problem was that recognizing an answer is not the same as understanding why it is correct.

The turning point came when someone from my broader study group shared a question dump they had used while preparing for the same certification.

Unlike traditional practice papers, these questions did not guide you through the process. There was no comfortable multiple-choice workflow where you could guess, check, and move on. You had to reason through the problem yourself before looking at the answer.

Suddenly, the confidence I had built through earlier practice papers started disappearing.

Questions that looked straightforward felt difficult. Concepts that I thought I understood suddenly seemed much less familiar.

Both my study partner and I struggled with them.

At the time, I assumed the questions were simply harder.

What I did not realize was that something else was happening.

Over time, I had unknowingly started relying on my study partner's reasoning process.

During discussions, we would look at a question together and talk through possible answers. Somewhere along the way, my brain developed a subtle habit.

Instead of actively solving the problem, I would wait.

I would wait for my study partner to begin reasoning through the scenario. Once he started explaining his thought process, I would contribute additional points, agree with the logic, and continue the discussion.

From the outside, it looked like collaborative learning.

Internally, it had become something else.

I was slowly outsourcing part of my thinking.

The best way I can describe it is cognitive offloading. My brain had learned that it did not need to work as hard because someone else would usually start the process.

The realization did not happen immediately.

One day, while reviewing my notes and revisiting concepts independently, I found myself asking:

If these concepts are not actually that difficult, why am I struggling so much when I see these questions?

That question forced me to reflect on my preparation process.

Eventually, I arrived at an uncomfortable conclusion.

The issue was not the questions.

The issue was that I had stopped fully engaging with them myself.

Thankfully, I realized this before my exam date.

Once I recognized the problem, I changed my approach. I continued studying with my study partner, but I also began solving questions independently.

More importantly, I stopped focusing only on whether I got a question right or wrong.

Instead, I started asking:

What concept is this question actually testing?

That shift changed everything.

For the first time, I felt genuine progress.

When I revisited the same difficult question sets later, I was no longer relying on pattern recognition or someone else's explanation. I could reason through the scenarios myself and arrive at the answer independently.

The experience taught me one of the most valuable lessons of my certification journey:

A study partner is excellent for accountability, motivation, discussion, and maintaining momentum.
But eventually, understanding has to happen inside your own head.
No one else can do that part for you.

When Note-Taking Became a Substitute for Learning

Another part of my preparation journey that I had to rethink was my relationship with note-taking.

There are generally two ways people approach notes while learning.

The first is transcription: writing down whatever is being presented and trying to capture as much information as possible.

The second is understanding first and then creating notes that reflect your own interpretation of the concept.

For me, the first approach came naturally.

During the initial months of my ACE preparation, my notes were less like summaries and more like a collection of saved information.

A typical study session looked something like this:

A diagram looked important.

Screenshot.

A chart looked useful.

Screenshot.

A service comparison table seemed relevant.

Screenshot.

The intention was good. I wanted to make sure I did not lose anything important.

The problem was that I was collecting information without necessarily processing it.

My notes were becoming a repository of things I had seen rather than a reflection of things I understood.

Later in my preparation, I found a complete slide deck from one of the Udemy instructors I was following. Instead of continuing to capture screenshots, I realized that the entire teaching material was already available in a structured format.

At that point, I stopped creating my own collection and started treating that slide deck as my primary reference material.

Interestingly, this helped me more than my original approach.

The slide deck was around 384 slides long, but the information was structured in a way that made concepts easier to break down. Instead of having hundreds of disconnected screenshots, I had a coherent learning path that I could revisit.

This became especially useful after my realization about cognitive offloading.

When I returned to those slides later in my preparation journey, something surprised me.

The concepts that had initially seemed difficult were not actually as complicated as I had thought.

I found myself wondering:

Why was I struggling so much with this earlier?

The answer was that the problem was not always the difficulty of the material.

The problem was how I was interacting with the material.

I was spending effort capturing information, but not always spending enough time converting that information into understanding.

That was one of the biggest lessons ACE taught me:

Notes are not valuable because they contain a lot of information.
Notes are valuable when they help you think.

From Memorizing Answers to Understanding Concepts

The realization that I was relying too much on external sources forced me to make a significant change in my preparation strategy.

The first thing I did was step away from my existing approach.

I revisited the slide deck one more time, not with the intention of memorizing everything, but simply to rebuild my understanding of the overall structure. I wanted to remind myself of the concepts I needed to know and how the different pieces connected.

After that, I deliberately put the material aside.

This time, I approached preparation differently.

Instead of spending more time consuming courses or creating additional notes, I started solving practice papers.

I moved primarily toward Udemy practice tests, where different instructors and learners had created their own question sets. The goal was no longer to identify familiar questions and select remembered answers.

The goal was to reason.

I changed my approach from:

"I have seen this question before, so I know the answer."

to:

"What concept is this question actually testing?"

I also made one important decision.

No more note-taking.

At that stage, creating more notes would have taken me back into the same cycle I was trying to break. Instead, I focused on building a mental understanding of why an answer was correct.

I kept solving question after question.

Over time, something interesting started happening.

The individual services and concepts stopped feeling like isolated pieces of information. I began seeing how they connected together.

Instead of memorizing definitions, I started understanding why certain services would be used in certain situations.

When I eventually revisited the slide deck again, the experience was completely different.

The same material that had previously felt overwhelming suddenly became much easier to interpret.

The information was no longer something I was trying to store.

It was something I could connect to concepts I had already reasoned through.

Another technique that helped me during this phase was using AI as a learning partner.

Instead of asking for answers, I used it to validate my reasoning process.

For difficult questions, my approach was:

Explain my understanding of the scenario.
Explain why I thought a particular option was correct.
Ask for feedback on my reasoning.
Understand where my interpretation was correct or where it needed adjustment.

The purpose was not to outsource thinking again.

It was the opposite.

The purpose was to force myself to think first and then use AI as a tool to refine that thinking.

Interestingly, this new approach did not immediately create complete confidence.

In fact, it created something else.

Awareness.

I knew I had improved, but I was also conscious of the time I had lost while relying on cognitive offloading.

By the time I reached the exam, I was not walking in with the usual confidence of feeling completely prepared.

There was uncertainty.

But that uncertainty was different.

I was no longer relying on false confidence.

I was going into the exam knowing that the understanding I had built was genuinely mine.

Exam Day: When Preparation Met Reality

When I initially started my ACE preparation, I had set myself a personal target of completing the exam by the end of March 2026.

At the time, October to March felt like a comfortable six-month window. It seemed realistic. I had enough time to complete courses, make notes, practice questions, and prepare properly.

However, after the realization around cognitive offloading and the need to rebuild my understanding, I could no longer look at the original timeline with the same confidence.

I pushed my target date by a week, aiming for April 4th.

But even then, I was not in a traditional revision phase.

I was not casually reviewing content before an exam.

I was still rebuilding. I was still practicing. I was still trying to prove to myself that I actually understood the concepts.

At that point, the biggest challenge was no longer knowledge.

It was confidence.

A few days before my planned exam date, I finally sat down to schedule the exam. Until then, I had deliberately avoided booking it because I was still uncertain about whether I was ready.

When I opened my laptop to schedule it, I was immediately hit with a wave of nervousness and anxiety.

It was intense enough that I simply closed my laptop.

My immediate thought was:

"I cannot do this yet."

That moment affected my confidence because I had always considered myself someone who could prepare and execute once I had a plan.

Suddenly, I was not sure anymore.

Instead of forcing myself into the exam immediately, I changed my final preparation strategy.

I stopped trying to consume more information. I stopped trying to complete more practice sources.

Instead, I focused on two things:

Difficult question sets where I had to reason through every answer.
Structured question-and-answer sessions where I had to explain my reasoning before validating my answer.

The objective was no longer to memorize more answers.

It was to rebuild trust in my own decision-making.

Slowly, my confidence started returning.

Not because I suddenly knew everything, but because I could see myself reasoning through problems independently.

Eventually, I scheduled the exam for April 11th, 2026.

By this point, even my family had started noticing the delay. They remembered how confident I had initially been about the certification and naturally had questions about why I had not attempted it yet.

That added another layer of pressure.

But instead of focusing on the uncertainty, I narrowed my attention.

I stopped thinking about the entire exam.

I focused only on the next question.

Then the next one.

On exam day, I scheduled the exam at night intentionally. I wanted to complete all my responsibilities beforehand so I could approach the exam without distractions.

Going into the exam, my mindset was simple:

Just start.

I was not imagining the possibility of passing. I was not visualizing the result. I was not allowing myself to think too far ahead.

My only goal was to reach the questions and solve them one at a time.

And then the exam began.

The first thing I noticed was that the questions did not look like the practice questions I had solved.

They were different.

The scenarios were more nuanced. The options were closer together.

The exam was not asking:

"Do you remember this definition?"

It was asking:

"Given this situation, what decision would you make?"

And this was exactly where the change in my preparation made the difference.

During my first attempt through the exam, more than half of the questions were marked for review.

My confidence was low.

But instead of panicking, I kept returning to the same approach I had practiced for weeks:

Reason.

Eliminate.

Decide.

The questions often had two options that looked almost correct. The difference was usually subtle:

a slightly better service choice,
a more appropriate operational approach,
a solution that matched the requirements more closely.

The exam was testing judgment.

It was testing whether I could make a decision when multiple options seemed reasonable.

The only reason I could handle those situations was because I had practiced that exact skill repeatedly.

Not memorizing answers.

Reasoning through scenarios.

After submitting the exam, I was still not confident about the result.

I completed the survey questions afterward with the same nervousness I had carried throughout the exam.

Then I clicked submit.

At the top of the screen, there was one line:

Score: Pass.

That was it.

After six months of preparation, the confidence crash, rebuilding my understanding, and walking into the exam unsure of myself, everything came down to that one moment.

And I started laughing.

Not because I was celebrating confidently.

Because I genuinely could not believe it.

Here I was, after passive note-taking, over-reliance on external resources, and months of questioning whether I was actually ready, I had done it.

Looking back, the biggest factor that helped me pass ACE was not a particular course, resource, or note-taking method.

It was practice papers.

But not practice papers used for pattern recognition.

Practice papers used as a way to train reasoning.

The goal is not to recognize the answer.

The goal is to understand why the answer is the answer.

That is the skill that stays with you after the certification is over.

What I'd Do Differently If I Started GCP ACE Today

Looking back at my ACE preparation journey, there are definitely things I would change.

However, I do not think I would completely remove everything I did.

Some parts of my preparation were not necessarily the most efficient learning methods, but they served an important purpose.

The biggest example is the combination of having a study buddy and maintaining notes.

At the time, they reinforced something more fundamental: consistency.

When you are starting a certification journey, especially while balancing work, it is easy to lose momentum. External accountability can be extremely valuable in the early stages.

A study buddy creates a commitment.

Notes create a sense of progress.

They remind you that this is something you have actively chosen to work towards.

Would I still recommend having a study buddy?

Yes.

Would I still recommend taking notes?

Yes.

But I would view them differently.

They are tools for building the habit of learning.

They are not substitutes for understanding.

The biggest change I would make is introducing practice questions much earlier.

However, I would also change the way I measure progress through practice papers.

Initially, I looked at practice papers as a numbers game.

How many questions have I completed?
How many practice sets have I finished?
How many scores have I achieved?

But those are not the most reliable metrics.

The better question is:

Can I independently reason my way to an answer without external help?

Anyone can complete hundreds of questions.

The important skill is being able to look at a new scenario, understand what it is asking, analyze the available options, and arrive at a conclusion that can be validated.

That became my true measure of readiness.

My preparation approach today would look more like:

Build enough context through coursework.
Start practicing questions early.
Identify knowledge gaps.
Review documentation or learning material based on those gaps.
Repeat the cycle.

The goal is not to finish more resources.

The goal is to improve your ability to reason.

My Three Biggest Lessons for Someone Starting ACE

If someone was beginning their ACE journey tomorrow, these would be my biggest recommendations.

1. Respect the difficulty of an associate-level certification

One of the biggest mistakes beginners make is assuming:

"I completed a fundamentals certification quickly, so an associate certification should not take much longer."

That assumption can be misleading.

Fundamentals certifications primarily test awareness and understanding of concepts.

Associate-level certifications test application.

They test whether you can make decisions based on a scenario.

Especially for someone early in their career or someone entering cloud for the first time, this requires time.

Can someone complete ACE faster than six months?

Absolutely.

But treating it like a certification that can simply be speedrun in one or two months is a mistake.

Give the exam the time it deserves.

2. Treat it as a commitment

A certification journey is a voluntary commitment.

There will be difficult days. There will be days where work gets busy. There will be moments where motivation disappears.

External accountability can help, but ultimately the commitment has to come from you.

The ability to continue despite distractions and setbacks is part of the preparation itself.

3. Practice papers are not optional

The biggest lesson from my ACE journey is simple:

Practice papers matter.

But not because they help you memorize questions.

They matter because they train your reasoning.

Every new question exposes you to another way a concept can be tested. The more scenarios you encounter, the better you become at making decisions under uncertainty.

The goal is not:

"I have seen this question before."

The goal is:

"I understand this concept well enough that even if the question changes, I can still reason through it."

That is ultimately what helped me pass ACE.

Was GCP ACE Worth It?

After everything I experienced during this journey, the final question is simple:

Was ACE worth it?

For me, the answer is yes.

For someone looking to enter the cloud ecosystem, whether their eventual goal is cloud security, data engineering, machine learning engineering, DevOps, or any other cloud-focused role, ACE provides something extremely valuable:

A practical foundation.

Many fundamentals-level cloud certifications introduce concepts like:

public cloud,
private cloud,
hybrid cloud,
advantages of cloud computing,
shared responsibility models,
and basic cloud terminology.

Those concepts are important.

However, before ACE, that was largely where my understanding of cloud existed.

I understood cloud as a concept.

I understood the theory.

But I did not truly understand how cloud platforms were built and operated.

ACE changed that.

After completing ACE, I could understand conversations around GCP services such as:

Compute Engine,
Pub/Sub,
Cloud Run,
Cloud Logging,
Cloud Monitoring,
IAM,
and other core platform services

The difference was not simply knowing what these services were.

The difference was understanding why they existed, how they interacted, and when they would be used.

That shift from theoretical understanding to practical understanding was the biggest value of ACE.

Another thing I appreciated was how much overlap existed between cloud and other domains I was already exploring.

Coming from a cybersecurity perspective, many principles remained familiar:

Identity and Access Management.
Role-Based Access Control.
Least privilege.
Defense in depth.
Security boundaries.

Moving to the cloud does not remove these fundamentals.

It changes the environment where they are applied.

The same security principles continue to exist, but now they are implemented through cloud-native services and architectures.

That is why I believe ACE is such a strong entry point into cloud.

It does not just test whether you know cloud terminology.

It tests whether you can think about implementing cloud solutions.

For me, ACE was not just another certification on my resume.

It was the certification that transformed cloud from a theoretical concept into something I could actually understand and apply.

And that is why, even after all the challenges, I consider ACE completely worth the journey.

The Biggest Lesson Had Nothing to Do With Cloud

The biggest outcome of my ACE journey was not just passing the certification.

It was learning how I learn.

The mistakes, the confidence crash, the rebuilding process, and eventually passing the exam gave me a framework that I plan to carry forward into every future certification.

My next certification journey is already underway with Microsoft Certified Security, Compliance and Identity Fundamentals (SC-900).

While SC-900 is a fundamentals-level certification, I specifically chose it because I wanted to understand cloud infrastructure and security concepts from the Microsoft Azure perspective as well.

After ACE, my approach to preparation has already changed.

My note-taking strategy is completely different.

Previously, I was focused on capturing information.

Now, I focus on capturing understanding.

For each section, I first go through the content and build my understanding of the topic. Only after that do I add notes.

The notes are no longer a copy of the learning material.

They are a reference point.

I only include:

concepts that I need to revisit,
important distinctions,
points that are easy to confuse,
diagrams that genuinely improve understanding,
and information that I know I will need during revision.

The goal is not to create the biggest notebook.

The goal is to create something useful.

I also plan to continue applying the same reasoning-based approach to practice questions.

Instead of measuring progress by:

"How many questions did I complete?"

I want to measure progress by:

"How many questions can I independently reason through?"

That mindset shift has become one of the biggest lessons from ACE.

For future certifications, my preparation cycle will continue to follow the same pattern:

Understand the concepts.
Practice scenarios.
Identify gaps.
Revisit the relevant material.
Repeat.

The ACE journey taught me that certifications are not just about collecting credentials.

They are opportunities to build a deeper understanding of a technology domain.

Looking back, passing GCP ACE was an achievement I'm proud of.

But the learning process I built along the way is something I'll carry into every certification—and every new technology—I tackle from here.

Quick Facts: The Unofficial TL;DR

Category	My Experience
Preparation time	~6 months
Background	Software Engineer with prior ISC2 CC and MS AI-900 certifications
Hands-on experience	Google Arcade labs
Biggest mistake	Mistaking resource completion for learning
Biggest turning point	Shifting from memorization to reasoning
Most valuable resource	Practice papers (used correctly)
Biggest lesson	Learn concepts, not answers

Resources That Helped Me

Resource	What I used it for
Pearson	Foundation
Udemy Course (Recommended) - This became my primary revision resource, particularly because of its accompanying slide deck, which eventually replaced my fragmented notes. udemy.com	Revision
Pluralsight	Practice
Google Arcade	Hands-on
Official Docs	Clarifying concepts
AI	Validating reasoning

Associate Cloud Engineer Certification - Credly

Associate Cloud Engineers deploy applications, monitor operations, and manage enterprise solutions. They use Google Cloud Console and the command-line interface to perform common platform-based tasks to maintain one or more deployed solutions that leverage Google-managed or self-managed services on Google Cloud.

credly.com

About the Author

Hi! I'm a Software Engineer with an interest in cloud, cybersecurity, and DevOps. I'm currently documenting my learning journey through certifications, hands-on projects, and technical writing as I continue building my career in cloud engineering.

If you found this article helpful or you're preparing for GCP ACE yourself, I'd love to hear about your experience. Feel free to share your preparation strategy, resources, or lessons learned in the comments. I'm always looking to learn how others approach certifications and I'd love to connect on LinkedIn.

DEV Community: Amruthavalli Chivukula

Microsoft SC-900: How I Replaced Memorization With Reasoning and Passed in Under a Month

Why SC-900?

I Already Knew Cybersecurity. I Didn't Know Microsoft's Vocabulary.

The Hardest Part Was Mapping the Products

Why I Chose a Reasoning-First Approach

My Practice Scores Were a Story of Their Own

The Problem With Getting Too Good at One Practice Test

I Also Learned Not to Treat Every Mistake the Same Way

1. "I don't know this."

2. "I knew this, but I didn't read the question properly."

I Didn't Want to Spend Three Months Preparing for a Fundamentals Exam

Exam Day

Pass 1

Pass 2

Pass 3

The Result

What I Would Do Differently

What I Would Recommend to Someone Preparing for SC-900

1. Go through the entire syllabus once

2. Start practice questions early

3. Reason before looking at the answer

4. When you're wrong, understand why

5. Don't rely on a single question bank

6. Don't panic when you encounter unfamiliar questions

What SC-900 Gave Me

The Takeaway

Resources

Closing

I Started GCP ACE to Learn Cloud. It Taught Me How to Learn.

Why I Chose GCP ACE

My First Mistake: More Resources ≠ Better Preparation

The Hidden Trap of Collaborative Learning

When Note-Taking Became a Substitute for Learning

From Memorizing Answers to Understanding Concepts

Exam Day: When Preparation Met Reality

What I'd Do Differently If I Started GCP ACE Today

My Three Biggest Lessons for Someone Starting ACE

1. Respect the difficulty of an associate-level certification

2. Treat it as a commitment

3. Practice papers are not optional

Was GCP ACE Worth It?

The Biggest Lesson Had Nothing to Do With Cloud

Quick Facts: The Unofficial TL;DR

Resources That Helped Me

Further Reading

Associate Cloud Engineer Certification - Credly

About the Author