Blockchain BTA Certified Blockchain Developer - Ethereum - CBDE Exam Practice Test

A. the Dagger-Hashimoto hashing while internally the EVM uses Keccack256 which is almost similar to SHA256, but has a different padding so produces different hashes.

B. Keccack256 while internally to hash values it's easy to use the Dagger-Hashimoto to create a meaningful hash.

C. the Dagger-Hashimoto hashing while internally the EVM uses SHA256 which is an alias for Keccack256.

A. to sum up all ethers sent from that address.

B. to protect against replay attacks.

C. to have an additional checksum for transactions.

A. While the EVM is Sandboxed, it isn't as powerful as the Bitcoin Network, because it's not Turing Complete.

B. The EVM is extremely powerful, turing complete and perfect for doing computational intensive things, because of the direct access to the graphics card.

C. The EVM can't access hardware layers or anything outside a blockchain node because it's sandboxed.

A. To Protect the Public Keys by being cryptographically significant.

B. To Generate An Address which can sign transactions.

C. To Sign Transactions And To Derive an Address From.

A. True

B. False

A. is not good, because you might give out secrets.

B. is great, because they often find bugs which weren't considered before.