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Certificate (Data Science)

[After Work Side Projects] Big Data Analytics Engineer Practical Exam (Task Types 1, 2, 3)

I will guide non-majors and beginners to quickly pass the Big Data Analysis Engineer practical exam! Theory lightly, practice thoroughly. Even without complex background knowledge, focusing on past questions, we intensively study only the points sure to appear on the exam.

(4.9) 755 reviews

4,844 learners

  • roadmap
빅데이터
빅데이터분석기사
머신러닝
판다스
pandas
자격증
시험
Engineer Big Data Analysis
Big Data
Python
Pandas
Machine Learning(ML)

Reviews from Early Learners

What you will gain after the course

  • Big Data Analyst Practical Exam Tips: Practical Know-how from Past Questions for Straight Passing

  • Python Basics: Practice Exam-Essential Code Immediately

  • Pandas Basics: Hands-on Practice on Essential Data Handling Features

  • Machine Learning·Statistics Basics: Build and Run Models Without Complex Explanations

  • Mastering Past Exam Types: Learn all types through direct practice

오뜨 띠배너 (9)

These people passed!

💼 Working Professional Success Stories

  • Office workers achieving 90 points with just commute time

  • Studied for a week after work and got 90 points

  • 85 points while working full-time

🔰 Non-CS Major Success Stories

  • Didn't even know the letter 'P' in Python, but got 100 points in just 3 weeks

  • Don't know any coding and can't even write if statements, but got 90 points

  • Non-major scored 95 points on first exam

Extreme Short-term Success

  • 100 points with 5-day cramming

  • Passed after 4 days of 3x speed study

  • Started 2 weeks before the exam and passed

🔄 Retry Success

  • Passed with Ddanjit's lecture after failing 8 times

  • Passed after retaking the exam


  • Passed after Ddanjit's lectures & consistent repeated practice

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

Practical exams have limitations when relying solely on rote memorization or conceptual understanding. Since you need to process and analyze given data to derive results within a limited timeframe, you must learn problem-solving approaches and code writing workflows that are suited for real-world applications.

Why did 4,000 people choose this?

For working professionals, job seekers, and others with limited time, as well as non-majors who feel overwhelmed about how to study
We provide an experience of studying enjoyably in a short amount of time that leads to passing.

The optimal roadmap leading to success

1 hour a day, 4-week completion program that shows you the path to success.

Various reviews prove it

Q&A

Q. Is it really possible even if I don't know coding at all?

It's possible! There are many actual cases of people who didn't even know the letter 'P' in Python but passed within 3-6 weeks. Knowing just the minimum coding required for the exam is sufficient.

Q. I'm a working professional and don't have enough time.

Make the most of your commute time! There's a case where "an office worker with lots of overtime passed with a 90-point score using only commute time." With average lecture times of 15-20 minutes, you can make use of spare moments.

Q. I've already taken other courses, but should I take this one too?

Direction is key! Like the case of "passed with Teacher Ddanjit's lectures after failing," the right learning direction is most important. Prepare thoroughly with an exam-specialized curriculum.

Q. I don't know much about math or statistics. Will that be okay?

No need for complex theories! We'll explain only the core concepts that appear on exams in an easy way. It's structured "so that even non-majors can easily understand."

Q. How many times should I listen to it?

While there are individual differences, beginners typically achieve perfect passing scores after an average of 2 complete study cycles! There are even cases of people who "passed after studying at 3x speed for 4 days." However, coding directly and encountering errors is more important.

Q. Are the latest exam trends reflected?

No worries even if exam trends change! We quickly reflect exam trends in our curriculum. You can study with the "latest version whenever you start."

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

For systematic organization, I recommend reading the book together with this course! However, it's not absolutely necessary, and this course is not designed to supplement the book, so the content flow may differ from the book.

Recommended for
these people

Who is this course right for?

  • Big Data Analysis Engineer Practical Test, for those who no longer want to postpone

  • Want to get certified quickly

  • For those who are unsure where or how to start with Python, Pandas, Machine Learning, and Statistics.

  • Dislike complex theories, want to quickly grasp the core, and finish fast.

Hello
This is

5,996

Learners

1,061

Reviews

3,704

Answers

4.9

Rating

5

Courses

Curriculum

All

105 lectures ∙ (22hr 40min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

755 reviews

4.9

755 reviews

  • 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 11

    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. 💪💪💪

  • 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 :) 👏👏👏

  • 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 😊

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