CDA level1 double disk summary

18 On the morning of the th, I took the first grade CDA, Get the rating on the spot after submitting , Get the grade B, Still satisfied , Summarize the whole review process .
At the end of last month, I made a preliminary assessment of what I want to review , from 9.1 Review to 9.17 Number ,17 Days time , A little hasty , But the key point is to pass it properly .
Reference materials ： studious AI Of app simulation 2 Coiling 、 Video lessons on the official website 、CDA Data Analyst APP Data analysis question bank .
( After signing up, download and learn AI app, There are CDA LEVEL1 Certified simulated question bank 2 set . If you haven't signed up yet , You can see my subsequent articles , I put 2 Write a set of simulation questions into a blog to share )
Review method ： To simulate the volume 1 As a guiding light , Quickly brush through the video lesson , Write blog records while brushing classes , Then brush questions crazily to check for omissions and fill vacancies .

say concretely , First step 、 Before Review , Time it for two hours first , Simulate the real examination environment , You can't search the answer , Naked exam status , Look at your weight . Although it's all multiple-choice questions , But passing is not so easy , After all, there are many topics . The examination questions are divided into single choice questions 、 Content related questions 、 Case analysis questions and multiple topics .

The second step 、 Watch video lessons . I want to mention CDA examination syllabus , Giving is equivalent to not giving , Just look at the proportion of each part , Focus on review sql And business data analysis , Other , About the key points of the exam , You can relax , I will give you super outline . So the video class on the official website is very important , Positive price is 2052, This poor man only has upper tb Bought a low price , Several questions appeared in the handout during the exam . When I prepare for the exam , Because of the time crunch , Generally, I preview the handouts of this chapter first , Play what the teacher said at double speed , You can't listen to the simple , Encounter difficulties like OLAP Multi table filter there , Or listen to the teacher slowly analyze , Can be enlightened .

The third step 、 Blogging . This is a good record and thinking habit , You can take it as an in class note , It can also be used as a channel for knowledge output , When reviewing, you will greatly mobilize your initiative .（ I pulled out my one hour before the exam CSDN Finally, the blog was consolidated again , There is a sense of achievement ）

Step four 、 Brush problem . For the certificate examination , It's necessary to write questions . After the video lesson , You can have a preliminary understanding of a certain knowledge point , But easily confused 、 You haven't found the blind spot that is easy to make mistakes , Is in You don't know you don't know The state of . At this time, you can find CDA Data analysis question bank of online school , Free of charge , It's divided into SQL、 statistical 、 Business data analysis and other sub blocks . I usually test myself within a limited time , The important point here is , There must be some confusion when you are testing , Don't get caught up in the right or wrong answer , It's about valuing what you're confused about , Wait for the right answer , Check the information immediately and give this little problem to kill fall . In the previous self-test , I'm just about drop、delete、truncate These differences are confused , I didn't think it was too deep , But when I wrote my blog, I felt , It is necessary to make a table of their differences , You can also give reference to other test preparation comrades . little does one think , When the real exam , There is 3 Track and delete related single choice questions , I got the right answer very smoothly . therefore , First, we should pay attention to our own confusion , Don't delay ; Second, timely record , Helping others is also helping yourself . Take out the simulation one week before the exam 2 Self testing , You will find a lot of blind spots of knowledge , Hurry back to the handouts 、 Search the Internet .

（ Now the number of fans 100 了 , Most of the people who pay attention to me are preparing for the exam CDA Little buddy , To thank you for your attention , I'll share with you my previously sorted question bank , You can print it out for self-test ）

Step five 、 Add the wrong questions to the knowledge summary of the blog , Extend your knowledge appropriately . because CDA My exam is a little abnormal , Even if we brush the video class and question bank several times , It only accounts for the real exam 70%-80%, But for adoption , Enough already . Right or wrong question , What is wrong? , Why is it right , To summarize . The rest 20% It's more about daily business accumulation and cognition , This is in 10 It's impossible to improve quickly in the next day .

At the end
I didn't think there was anything special about these textual research , Will worry about the gold content 、 Worry about not having enough time , But this time 17 The days of preparation for the exam gave me a new experience . During this period , Because I have to work every day , Review time is extremely limited , Anyway, I cherish every minute of review more . Insomnia, bad sleep , Get up and brush dozens of questions , Take a moment to read the handouts on the subway , In repeated practice and thinking , Many places where I used to be confused when studying statistics , At this time node , Suddenly it's clear .

I really understand why data analysis is icing on the cake 、 People's experience and executive ability are the timely help , These skills 、 These knowledge should be called by the subject of human 、 Controlled by , Will play its due value . It's not that I can only do data analysis when I'm engaged in data analysis , I am only engaged in operation , We must not limit our development , What we need to do is to use all our cognition and abilities , To find and solve problems 、 Help the company make money , And the ability of data analysis 、 The bottom of reason and logic is our important bottom strength .

I remember 17 No. In the evening , I am concentrating on the last question brushing . That evening , It's so busy around the company , Everyone doesn't want to work , Head out of the window , Because that day is a music festival . The joyful cries and lively music made them jump excitedly , But I am in the opposite state , My heart is very calm , I have no time to focus on other things besides this exam . In an instant , I was thinking , If it's normal , I am in a state of laxity , I'm just like my colleagues , Want to join the fun , Want to happy happy, But I have a goal , Know where your boat is going , Will no longer drift .

I hope to start from here , I can become firm and calm , Every month, set yourself a goal that you can reach by jumping , Make yourself better . Future period , I'm looking forward to you ！