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[Side Project After Work] Big Data Analysis Certification Practical Exam (Type 1, 2, 3)

We guide non-majors and beginners to quickly obtain the Big Data Analysis Certification (Practical Exam)! Keep the theory light and the practice solid—focusing on core points that are guaranteed to appear on the exam through past questions, without the need for complex background knowledge.

(4.9) 768 reviews

4,957 learners

Level Beginner

Course period 12 months

Engineer Big Data Analysis
Engineer Big Data Analysis
Big Data
Big Data
Python
Python
Pandas
Pandas
Machine Learning(ML)
Machine Learning(ML)
Engineer Big Data Analysis
Engineer Big Data Analysis
Big Data
Big Data
Python
Python
Pandas
Pandas
Machine Learning(ML)
Machine Learning(ML)

Reviews from Early Learners

Reviews from Early Learners

4.9

5.0

jocharlie

87% enrolled

Passed the 10th practical with 90 points after DdanJit After Work's lecture! Among all 빅분기 online courses I've taken, DdanJit After Work's was the only one that truly taught practical exam strategies 😊😊 Thanks to this, I learned a lot and completed the practical. Looking forward to more great lectures~~

5.0

milk502

100% enrolled

I'm truly grateful that I started '퇴근후딴짓님's' lecture and was able to pass with a high score in one go..! I think I was able to pass by repeatedly listening to the lectures and following along to solve the practical problems! If you study diligently with '퇴딴짓,' passing is no problem. Thank you so much!

5.0

SH

100% enrolled

This is exactly the course that working professionals need. The lectures aren't burdensome or too long, and they focus only on the essential core content, so you can grasp all the key points just by listening to the lectures. On top of that, I solved the Kaggle playground problems that are additionally provided and did repetitive learning. Thanks to the instructor, I passed this round with a perfect score of 100!! It feels rewarding to have studied so worthwhile!!!

What you will gain after the course

  • Big Data Analysis Certification Practical Exam Tips: Real-world Know-how for Passing via Past Exam Questions

  • Python Basics: Practice immediately with only the code that is guaranteed to appear on the exam

  • Pandas Basics: Hands-on practice focusing only on the essential functions needed for data handling

  • Machine Learning & Statistics Basics: Building and Running Models Right Away Without Complex Explanations

  • Mastering Past Exam Types: A curriculum designed to familiarize you with all past exam patterns through hands-on practice.

오뜨 띠배너 (9)

These people passed!

💼 Office Worker Success Stories

  • An office worker scored 90 points using only commute time

  • Scored 90 points after studying for one week after work

  • Scored 85 points while balancing work and study

🔰 Non-major Pass Stories

  • I didn't know the first thing about Python, but I got 100 points in just 3 weeks

  • Scored 90 points even without knowing any coding or how to write an if statement

  • Non-major scored 95 points on the very first attempt

Extreme Short-term Pass

  • 100 points with 5 days of cramming

  • Passed after watching at 3x speed for 4 days

  • Started 2 weeks before the exam and passed

🔄 Successful Retake

  • Passed with Ddan-jit's lectures after failing 8 times

  • Passed after a second attempt


  • Passed after taking Ddan-jit's lectures and consistent practice.

While self-study is possible for the written exam,
the practical exam is different

Practical exams have limits if you rely solely on simple memorization or conceptual understanding. Since you must complete the entire process of processing and analyzing given data to derive results within a limited time, you must master problem-solving approaches and code-writing flows tailored for the actual exam.

Why did 4,000 people choose it?

For busy office workers, job seekers, and non-majors who feel overwhelmed about how to start,
we provide an experience that leads to passing by making studying fun and efficient even with limited time.

The optimal roadmap leading to success

We present a path to passing in 4 weeks, with just 1 hour a day.

Proven by numerous reviews

Q&A

Q. Is it really possible even if I don't know how to code?

It is possible! There are many actual cases of people who didn't know the first thing about Python but passed within 3 to 6 weeks. Knowing the minimum amount of coding required for the exam is more than enough.

Q. I'm an office worker and I'm short on time.

Please make the most of your commute! There is a case where an "overworked office worker scored 90 points just by using commute time." Since the average lecture time is 15-20 minutes, you can utilize your spare time effectively.

Q. I've already taken other courses; do I need to take this one too?

Direction is key! Just like the case of "passing with Ddan-jit's lectures after failing," the right learning direction is most important. Prepare with confidence through a curriculum specialized for the exam.

Q. I don't know much about math or statistics, will I be okay?

No complex theories are needed! We explain only the core concepts that appear on the exam in an easy-to-understand way. It is designed so that "even non-majors can easily understand."

Q. How many times do I need to listen to it?

While it varies by individual, beginners can achieve a perfect pass with an average of 2 rounds of study! There are even cases of "passing after watching at 3x speed for 4 days." However, it is more important to code for yourself and encounter errors.

Q. Are the latest exam trends reflected?

No need to worry even if the exam trends change! We quickly reflect the latest exam trends into the curriculum. You can learn with the "latest version no matter when you start."

Q. I don't know much about math or statistics; is that okay? Is the book absolutely necessary?

We recommend using the book alongside the course for a systematic summary! However, it is not strictly required; this lecture is not merely supplementary to the book, and the content flow may differ from the book.

Recommended for
these people

Who is this course right for?

  • For those who no longer want to procrastinate on the Big Data Analysis Certification practical exam.

  • Those who want to get a certification in a short period of time

  • Those who feel overwhelmed and don't know where or how to start with Python, Pandas, machine learning, and statistics.

  • Those who dislike studying complex theories and want to finish quickly by focusing only on the core points.

Hello
This is roadmap

6,224

Learners

1,082

Reviews

3,719

Answers

4.9

Rating

7

Courses

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Curriculum

All

105 lectures ∙ (22hr 40min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

768 reviews

4.9

768 reviews

  • east60508591님의 프로필 이미지
    east60508591

    Reviews 1

    Average Rating 5.0

    5

    100% enrolled

    I passed the practical exam with a score of 95 on my first attempt. Usually, when preparing for other qualifications, I studied using materials floating around on the internet or personal blog materials. However, Big Branch is a newly established qualification, and the type has recently changed, so I was at a loss, but I happened to find this lecture, and although I was skeptical at first, I studied hard with the mindset of just giving it a try. I think you can pass the exam just by listening to the lecture, and if you are anxious, you can go to Kaggle and practice. By the way, the data preprocessing problems posted on Kaggle are more difficult than the exam problems, so don't be discouraged and say you can't solve them. Also, if you have questions during the lecture, you can post them in the [Community], and they will answer them relatively quickly, which was really great. Anyway, I strongly recommend that those preparing for Big Branch practical exams take this lecture. The lecture may seem expensive, but it was really worth the money. Thank you again to the instructor!!

    • roadmap
      Instructor

      I'm glad I can deliver a lecture with high satisfaction!! And I think it will be a great help to others since you also uploaded study tips!! Congratulations on passing, and thank you so much for the specific feedback 😊

  • appleskim5694님의 프로필 이미지
    appleskim5694

    Reviews 1

    Average Rating 5.0

    5

    100% enrolled

    I finished the course a week before the exam! I wrote the code myself and compared it with the lectures as instructed by the instructor. It was a great learning method! I think it was a good idea to take the course because the instructor answered my questions quickly and in detail! I will adapt by reviewing the lectures and solving Kaggle problems for the next week! If you are thinking about taking the course, I highly recommend it!

    • roadmap
      Instructor

      Thank you for recommending it as a good study method!! I feel like I've grown a lot when I look at Taebum's questions!! I hope you organize the remaining period well and achieve good results.

    • Teacher, I passed with a stable score!! Thank you for everything😄

  • donedone님의 프로필 이미지
    donedone

    Reviews 1

    Average Rating 5.0

    5

    100% enrolled

    Wow.. When I was studying on my own for the first time in the Big Quarter practical exam, there were a lot of things I didn't understand, so I ended up failing. Then I found out about the After-Work Others lecture, so I took it. I didn't have much time because I was studying while working, but I was able to pass on the second try thanks to the recommended coding and various tips! Data analysis is a difficult field, but if you only take the exam, there's no lecture better than this one. Thanks to you, I passed smoothly with a score of 90, so I'm so happy! I'll have to study data more in the future, using Kaggle, etc.

    • roadmap
      Instructor

      90 points! Wow!! Congratulations on passing with a high score. You listened to the lectures on content you didn't understand and improved your skills to this extent!!! You're talented :) 👏👏👏

  • wonbin08135415님의 프로필 이미지
    wonbin08135415

    Reviews 1

    Average Rating 5.0

    5

    100% enrolled

    Hello. I passed the practical exam in "Non-major + First Exam". I was lucky to pass the written exam because it was mostly about memorization, but when I actually tried to prepare for the practical exam, I was at a loss. I thought that self-study would not work, so while looking for a lecture, I happened to come across Mr. After Work's lecture on YouTube, and I took the lecture through Infraon. What helped me while studying were: 1. Easy explanations that even someone like me who had never touched Python could understand 2. Curriculum structure just for the Big Data Analysis Engineer practical exam (the best) 3. Review using blank notes, Kaggle, etc. 4. Quick feedback on questions Etc. I studied while working, but just listening to the lecture and reviewing was a great help and not difficult. In the actual practical exam, I couldn't solve the 3rd type 2 question that I had never thought about at all, so I turned it in blank (15 points deducted), but I got everything else right and passed with a score of 85 (final result). I am so grateful that I was able to pass the exam and learn the charm of Python through Mr. Afterwork's lecture. Now, I want to continue learning not just by passing the exam, but to acquire more functions of Python that I don't know about and to utilize them more. I hope that it will be helpful to those who are considering taking the course, so I am leaving a review. I sincerely thank you for creating such a great lecture!!

    • roadmap
      Instructor

      I am so touched that you summarized 4 helpful parts. I think it must be the result of studying hard while working hard 😍 I sincerely congratulate you on passing the exam, and there are so many things you can do with Python, so I recommend you take on another challenge before you forget it!! You worked hard 👏👏👏

  • thstmddns님의 프로필 이미지
    thstmddns

    Reviews 12

    Average Rating 5.0

    5

    75% enrolled

    Hello, teacher? I am finally leaving a review. After passing the 7th practical exam with great enthusiasm, I challenged the 8th exam and passed. For the 7th practical exam, I bought a textbook and studied by memorizing all the codes in the textbook. However, on the day of the exam, the codes in my head were all jumbled up and I couldn't use them properly, so I suffered a bitter defeat. When preparing for the 8th re-examination, I took the teacher's lecture. I took the lecture at 3x speed for 4 days. And I studied by solving the materials provided and comparing the source codes every time I took the lecture. Using the tips the teacher gave me during class, I was able to solve the problem in 1 hour on the test day and got 90 points. (I was the first to leave the test room I was in haha) What was helpful about the teacher's lecture was that 1. Consistent writing method can be applied - My previous study method was to memorize the codes in the textbook and blog, so I had to memorize numerous codes for the problem, but through the teacher's lecture, I was able to prepare as a single process to prepare for any problem. 2. Data provision - The data provided are blank spaces and source code colab files. After attending each lecture, I was able to quickly get a feel for it by writing code directly in the blank space file, executing it, and comparing it with the source code file. 3. Task 3 - With the tips given in Task 3, I was able to memorize 3 lines of code and get 20/30 points. 4. Email - The information about the exam that you sent me via email a week before the exam was very helpful (especially the mind map). Thanks to you, I was able to obtain the engineer's license and also develop my skills in AI development, which I am currently working on. Thank you!!!

    • roadmap
      Instructor

      Congratulations on passing :) You watched the lecture at 3x speed and left the room first~~ You seem to be a talented person!! Thank you so much for pointing out the helpful parts and explaining them!! Since you're going into AI, I think I'll see you again at another gathering someday! You worked hard. 💪💪💪

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