Blockchain CBDE Exam - Topic 4 Question 18 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 18
Topic #: 4

In order to implement an ERC20 token contract, you'd need at least to implement the following functions and events in order to fulfill the interface requirements:

AtotalSupply(), balanceOf(address), allowance(address,address), transfer(address,uint256), approve(address,uint256), transferFrom(address,address,uint256). Events: Transfer(address,address,uint256), Approval(address,address,uint256)

Bname(), symbol(), totalSupply(), balanceOf(address), ownerOf(uint26),approve(address,uint256), takeOwnership(uint256),transfer(address,uint256),Events: Transfer(address,address,uint256), Approval(address,address,uint256)

Show Suggested Answer

Suggested Answer: A

by Martina at May 09, 2022, 03:45 AM

Limited Time Offer

25%

Off

Get Premium CBDE Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Tayna

6 months ago

Totally agree with A, it's the standard everyone uses!

upvoted 0 times

...

Diane

6 months ago

Are we sure about A? Seems like a lot of functions to implement.

upvoted 0 times

...

Arlette

6 months ago

Wait, ownerOf and takeOwnership? That's not ERC20 at all!

upvoted 0 times

...

Cassandra

6 months ago

I think B has some extra stuff that isn't needed for ERC20.

upvoted 0 times

...

Deeanna

7 months ago

Definitely A, those are the core functions for ERC20!

upvoted 0 times

...

Dorinda

7 months ago

I'm pretty confident about this one. Copado Robotic Testing is a Salesforce-specific tool, so the statement that it's built exclusively for Salesforce and on-premise apps is True.

upvoted 0 times

...

Val

7 months ago

I'm confident that the correct answers are B and A. The stencil allows you to add custom process elements and form controls to the designer.

upvoted 0 times

...

Elza

7 months ago

This is tricky. I'm going to first confirm there are no hidden calculations and just look at the numbers carefully. $2,000 seems most reasonable given the total annual amount.

upvoted 0 times

...

Buck

7 months ago

Okay, let me think this through step-by-step. The oval shape is typically used for attributes, the rectangle for entities, and the diamond for relationships. I'll match those up with the numbers in the image.

upvoted 0 times

...

Novella

7 months ago

This looks like a straightforward question about enterprise information security policies. I'm pretty confident I can answer this one.

upvoted 0 times

...