Effective Study Techniques for the Blockchain CBSA Exam

Scenario: Law enforcement system; Dataset: Criminal Arrests, Warrants for Arrest, Conviction Date

Scenario: An Email campaign service; Dataset: Recipient Email, From Email; Subject, Body

Scenario: A family filter wifi router; Dataset: Websites Visited, Websites Blocked, Download History

Scenario: Credit score app; Dataset: Credit Score, Hard Inquiries; Collections, Date Removed, Date Added

They are much easier to maintain and update

They have significantly higher transaction speeds

Their distributed ledger systems are more secure and immutable

All of the above

Blockchains are unique in that they utilize no data structures

Lexicographic Search Tree

Bloom Filter

Merkle Tree

To sum up all ethers sent from that address

Protects against replay attacks

To distribute the workloads in the EVM

Adds a checksum for transactions

Truffle

Serpent

Solidity

Embark

Bitcoin

Ethereum

Neo

Litecoin

Monero

Monitoring

API Peer

Endorsing Peer

Ordering Peer

FALSE

TRUE

Only through code executed in other Smart Contracts and XML-RPC

Through code executed in other Smart Contracts and through web3.js or any JSON-RPC library

Only through code executed in another Smart Contract

Smart Contracts cannot be externally invoked. They become autonomous at launch and cannot be called.

Wikipedia

Coindesk

Coinbase

Randao

ERC20