How to get the results - Associate Developer Node.js Practice Questions

ChangChien.Chang · 2022-11-22T04:43:25.602Z

Hi,
I took the [Associate Developer Node.js Practice Questions], after answered 28 questions, the page automatically showed how many questions I have passed.
however, there are no “review option” for me to review the correct answers or incorrect answers to the questions,
if anyone knows how to review the questions once the practice questions completed? thanks!

Kushagra_Kesav · 2022-11-25T02:39:42.347Z

Hi @ChangChien.Chang,

Welcome back to MongoDB Community forums

Kindly post the screenshot of the page you are experiencing issues with! It will help us to narrow down the specific reason behind that.

Thanks,
Kushagra

neeraj · 2022-11-26T10:32:18.118Z

image940×532 111 KB

image940×519 111 KB

Not able to figure out what wrong I am doing here.

neeraj · 2022-11-26T10:37:28.449Z

There are many such questions in the practice test. Sharing screenshots.

image1253×646 25.4 KB

image1194×478 15.7 KB

neeraj · 2022-11-26T10:39:34.375Z

image940×481 43.6 KB

image940×435 34.4 KB

image940×473 37.1 KB

steevej · 2022-11-27T15:22:39.216Z

About What are two valid method names for MongoClient class?

They ask for 2 but you select 3.

According to documentation, there is no method named open() for MongoClient.

steevej · 2022-11-27T15:41:39.225Z

About the 1KB question. Your answer seems to generates a syntax error for size : 1KB.

About *What command deletes document which book is EFF and user is T.B., and returns the deleted document. According to documentation, deleteOne returns Promise, not the delete document. According to same documentation, findOneAndDelete might be more appropriate.

No answer for the movies question, so it is hard to point you in the right direction.

About, What schema IS the most effective? I would guess that by what is the most, they only want one. You selected 4. Having all orders of a product inside the product document can easily create a massive array. Same with reviews. Historical prices is hardly interesting for most product use-cases. Current price and availability is really useful.

steevej · 2022-11-27T15:54:00.823Z

As a bonus tip, when the questions are about API, just trying the API might gives you some clues about what is wrong.

neeraj · 2022-11-28T12:28:48.985Z

Thank you @steevej for reverting.
I found only on of your answers helpful.
I’ve tried selecting only one option as well, however, it is not working. I’m not able to figure out the correct options.

neeraj · 2022-11-28T13:01:32.611Z

@steevej

image1191×628 13.4 KB

I hope, the deleteone is the right method of deleting a document. However, it shows error.
delete_one and remove_one are not valid as per my understanding.
removeone seems invalid as well.

steevej · 2022-11-28T14:28:13.034Z

neeraj:

I found only one of your answers helpful.

Which one was helpful? I can certainly add more details to the ones that did not help.

neeraj · 2022-11-28T16:01:06.523Z

@steevej I’m referring to this one.

image1191×628 13.4 KB

I hope, the deleteone is the right method of deleting a document. However, it shows error.
delete_one and remove_one are not valid as per my understanding.
removeone seems invalid as well.

steevej · 2022-11-29T13:57:10.256Z

The one about deleteOne was the only one useful? Really?

What about the syntax size:1KB? It was not helpful, really? You selected twice answers with size:1KB and got an error twice and it is not helpful to indicate that size:1KB generates a syntax error.

What about the schema question? The hints about massive array for orders inside documents, reviews inside documents and historical prices inside documents not being good schema are not useful?

steevej · 2022-11-29T13:57:25.444Z

See the other thread.

Please check answers for practice exam Certification Exams

About deleteOne. Is that for mongosh, nodejs or python? In python, it is delete_one(), but mongosh and nodejs should be deleteOne. Is it possible that none of the answer is good. In mongosh db.scores.deleteOne() should work but in nodejs, the correct answer could be db.collection( “scores” ).deleteOne(). In the question and the answer, is there a space between E. and M.? In the sample documents there is one but it is not clear for the question and answer. If there is none, the NO documents…

Kushagra_Kesav · 2022-11-30T06:08:18.495Z

Hi @neeraj,

Welcome to the MongoDB Community forums

neeraj:

image1191×628 13.4 KB

I hope, the deleteone is the right method of deleting a document. However, it shows error.
delete_one and remove_one are not valid as per my understanding.

I assume you are attempting the practice question for Python language, if yes then please refer to the official documentation of the python driver to learn more.

I would encourage you to re-attempt the practice question with the correct options.

If you have any further questions or concerns, please don’t hesitate to contact us.

Thanks,
Kushagra

neeraj · 2022-12-08T11:23:18.147Z

@Kushagra_Kesav I had attempted in NodeJS language.
Now, I’ve cleared the actual certifications. Thank you so much for all your efforts and patiently answering my queries.
Thanks to @steevej also.
mongodb-associate-developer.3

Kushagra_Kesav · 2022-12-20T15:28:08.120Z