CBSA Online Practice Questions and Answers

In the Ethereum EVM there are two types of memory areas. (Select two.)

A. Storage

B. Database

C. Memory

D. Persistent E. Ephemeral

Which of the following is not considered an Ethereum testnet?

A. Ropstein

B. Rinkeby

C. Mainnet

D. Kovan

Gas has multiple associated terms with it: Gas Prices, Gas Cost, Gas Limit, and Gas Fees. The principle behind Gas is to have a stable value for how much a transaction or computation costs on the Ethereum network.

Which is considered to be the static value for how much a computation costs in terms of Gas?

A. Price

B. Fee

C. Cost

D. Limit

What component on the blockchain maintains the "world state"?

A. .acl

B. Reputation Manager

C. Distributed Ledger

D. .bna

In Ethereum a block contains two very important parameters. (Select two.)

A. Difficulty

B. Release date

C. Block number

D. Timestamp

Which cryptocurrency is also known as "Smart Money" in the blockchain world?

A. Ether

B. BTC

C. Monero

D. Litecoin

What benefit does HPE Cloud Cruiser provide?

A. Need for proven, production-ready technology

B. Need a full history of all application data

C. Require top-notch performance

D. Need to avoid data duplication or redundancy

By design, permissioned blockchains such as Hyperledger Fabric are not capable of creating or utilizing cryptocurrency.

A. FALSE

B. TRUE

One critical business consideration you must account for when choosing Hyperledger Fabric over Ethereum is:

A. Who you will have host the nodes and how will you deploy the network

B. If your blockchain will use Proof of Work or Proof of Stake

C. Which cryptographic algorithms Hyperledger Fabric employs

D. How you will implement your own gas/fee system

Ownership or partial ownership of an asset can be tracked with which type of token?

A. Equity

B. Utility

C. Ethereum

D. Game-based

A product's supply chain data is stored on blockchain. Only members of the product supply chain can write

announcements to the blockchain but any consumer can query this data in a store to learn more about the

product they want to buy.

This is an example of a ____/____ blockchain.

A. public /closed

B. private / open

C. private / closed

D. public / open

In common blockchain design, what is one common method to "chain" blocks of data together in order?

A. Store the hash of the previous block within the current block

B. Having the genesis node store an ordered, mutable array of block hashes

C. Writing each block into a separate file on the hard disk of the node

D. Assigning an order number to each block so they can be sorted when requested

A Blockchain network can be best categorized as:

A. A centralized network

B. A decentralized peer-to-peer network

C. A series of nodes managed by a genesis node

D. A distributed network centralized ledgers

In regard to blockchain, complete autonomy, transparency, and decentralization:

A. Are the aim of all distributed banking and financial institutions

B. Will never be achievable due to technology limitations

C. Are highly valuable in some use cases and completely undesirable in other use cases

D. Are the foundation principles that allow blockchain to operate successfully

The two main types of transactions you can perform in Hyperledger Fabric are:

A. Chaincode Read and Chaincode Write transactions

B. Deploy and Invoke transactions

C. HFRead and HFAppend transactions

D. Call and Write transactions