Doubts in certificate test evaluation

I just gave my certification test and test was conducted smoothly. I think one of the answers I have marked is correct but at the end of the test it is showing incorrect answer.
I am attaching screenshot of the same.

Please help me.

@pratham9897521595 The digital output of the Analog to Digital Converter is 0 to 1023.

The ADC is a 10-bit ADC meaning it can detect 2^10 = 1024 discrete analog signals. The range or value when no discrete analog is present can be represented by a value of 0.

That’s why the lower bound is 0 and upper bound is 1023 which makes the total discrete values to 1024. So, 0-1023 is the correct option


We will manually grade for Q.7, as option C is correct for that.

Let me know if you have any other queries.

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Thanks a lot @akshayan.sinha and @vishalvats2000

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Hello @akshayan.sinha ,
Today I received my certificate and test result via email.
As you have mentioned Q.7 will be manually graded as C is correct answer, but it is still marked as incorrect.
I’m attaching screenshot of the mail.
I also wants know that is there any way to get the hardcopy of the certificate?


I’ve taken forward your request. We’ll share the updated certificate within 24 hours.

We have currently discontinued certificates for course completion. However, students who perform well, gets an excellence certificate or it’s hardcopy.