Take the Ethereum Developer Test

To create intelligent contracts:

A local in-memory blockchain with unit tests is an excellent place to start. Next, test and debug the smart contract with beta users on a test network like Ropsten or Rinkeby to iron out any last kinks before deploying it to the main network.

A test-net with beta users, such as the Rinkeby or Ropsten testnet, is a nice place to start before testing it locally on an in-memory blockchain simulation like Ganache. Then roll it out to the main network.

A local in-memory blockchain with unit tests is a good place to start, but as soon as you can, deploy to the main-net.

Correct! Wrong!

To prevent problems during updates to the Ethereum platform

Ethereum does not make platform upgrades. It is fixed and complete.

It's a good idea to send out a newsletter informing users of the updates.

The ability to suspend a contract is useful for managing the risky capital.

Correct! Wrong!

In which location did the #eth2interop lock in occur?

Korea

USA

Mexico

Canada

Correct! Wrong!

When developing a game like battleship poker, where you must conceal the values of your opponents,

Since the information on the blockchain is public and only the call is private, only other smart contracts would be able to access it. This means that nothing can be hidden on the blockchain.

With agreements outside of the company holding such principles. By doing this, we can ensure that the information flow follows a clear logic and that no one else has access to it.

Using personal state variables. In this manner, only the smart contract itself and no one else can view the data.

Correct! Wrong!

What makes unit testing so crucial?

Working on something for which you are compensated is a terrific way to spend time. But in the end, it will just slow down the process of development.

It aids in the discovery of errors, regression errors, and occasionally even aids in the understanding of your code from many perspectives

All of the statement are true.

Correct! Wrong!

What videogame mechanics are typically referenced when discussing the balance in opcode pricing?

Diablo

PubG

Starcraft

Defence of the Ancient

Correct! Wrong!

Having a bug-bounty program from the beginning...

Is wholly ineffective. who would like to evaluate beta software. Start the bug-bounty program as soon as the contract is made available on the main network.

Can assist in getting the public to test your smart contracts, which will help uncover flaws early.

Could be difficult because most of it is administrative work.

Correct! Wrong!

It's a good idea to think about smart contracts and the blockchain. Which statemet is TRUE?

Only transferring components to the blockchain that actually require it. By doing this, smart contracts will be less complicated and easy to interpret as well as test.

To transfer the portions of the system that handle Ether transfers to the blockchain. The rest can continue to be stored in conventional database systems. In this manner, the blockchain solely contains the value transfer.

To transfer all current logic to the blockchain so that everything functions as one unit. It might be more complicated this way, but it's also simpler to keep up.

Correct! Wrong!

How a smart contract disburses funds

Using just the pull method—not the push method—is advised.

Pushing over pulling is preferable.

To guarantee that participants can receive their money regardless of the contract state, it is wise to use both a push and a pull mechanism. It should have a withdraw mechanism in addition to pushing.

Correct! Wrong!

Including community feedback in your testing

Is bad since you might leak information.

Is excellent because they frequently uncover bugs that weren't anticipated.

None of the above.

Correct! Wrong!

________ authors the Etthereum white paper.

Satoshi Nakamoto

Gavin Wood

Vitalik Buterin

Elon Musk

Correct! Wrong!

Ethereum Developer Test 2

To create intelligent contracts:

To prevent problems during updates to the Ethereum platform

In which location did the #eth2interop lock in occur?

When developing a game like battleship poker, where you must conceal the values of your opponents,

What makes unit testing so crucial?

What videogame mechanics are typically referenced when discussing the balance in opcode pricing?

Having a bug-bounty program from the beginning...

It's a good idea to think about smart contracts and the blockchain. Which statemet is TRUE?

How a smart contract disburses funds

Including community feedback in your testing

________ authors the Etthereum white paper.

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