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Blockchain CBSA 問題練習

BTA Certified Blockchain Solution Architect 試験

最新更新時間: 2024/03/19,合計229問。

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Question No : 1
In what way(s) can Ethereum Smart Contract functions be invoked?

正解:

Question No : 2
Which of the following is not considered an Ethereum testnet?

正解:

Question No : 3
When you are developing with Fabric Composer which of the following is true?

正解:
Explanation:
Hyperledger Composer is an open-source application development framework which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development. The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing to know the low-level (Go Programming) details involved in blockchain networks.

Question No : 4
Which cryptocurrency is also known as "Smart Money" in the blockchain world?

正解:
Explanation:
Ether Foundation of all ERC tokens “Smart Money”, money which can be programmed to make decisions for itself

Question No : 5
Miner takes each accepted transaction and writes it to the current block
C. Both of these ordering sequences can occur
D. None of the above

正解: A

Question No : 6
When considering tokens on the Ethereum Blockchain what is the main difference between ERC20 and ERC721 tokens?

正解:
Explanation:
Non-fungible means unique. ERC is acronym of Ethereum Request for Comments. A standard allows for the implementation of a standard API for creating non-fungible tokens. To whom not familiar, ethereum, when launched during ICO, is using ERC-20 which ethereum coin can be broken down into smaller portion such as 0.000001. As you know, in coin, we don’t differentiate it by serial number. Government only uses “serial number” to track the note and not on coin. Hence, there is no way to distinguish or trace your coin and my coin. This behavior is same in Ethereum coin. Startup has found a way to use ERC-721 to create a unique and traceable coin in ethereum blockchain technology. This is a break through in blockchain technology.

Question No : 7
How many peers in the network need to endorse a transaction in a Hyperledger Fabric blockchain?

正解:
Explanation:
The number of peers required to endorse a transaction is driven by the endorsement policy that is specified at chaincode deployment time.

Question No : 8
In what year did a whitepaper that was published by “Satoshi Nakamoto” outlined a solution to the Byzantine Generals problem?

正解:
Explanation:
In 2008 a whitepaper is published by “Satoshi Nakamoto” which outlines a solution to the Byzantine Generals problem

Question No : 9
Pending transactions on the Ethereum blockchain are always ordered by highest fee paid to lowest, and then written to the block in that order.

正解:

Question No : 10
A chaincode package that was signed at creation can be handed over to other owners for inspection and signing in Hyperledger.
Is it true that the workflow supports out-of-band signing of chaincode package?

正解:
Explanation:
A chaincode package that was signed at creation can be handed over to other owners for inspection and signing. The workflow supports out-of-band signing of chaincode package.

Question No : 11
What type of peer node executes transactions?

正解:
Explanation:
Endorsing Peers (Endorsers) An endorser executes and endorses transactions. The endorsing peers take the role of endorsing transactions before they are ordered and committed as per the policy defined in Chaincode.

Question No : 12
The primary difference between a blockchain and blockless solution is?

正解:

Question No : 13
What benefit does HPE Cloud Cruiser provide?

正解:

Question No : 14
Which of the following is true concerning Hyperledger Composer?

正解:

Question No : 15
Ethereum smart contracts can be written in what programming languages? Select all that apply.

正解:
Explanation:
Ethereum Smart Contracts run on compiled bytecode, which means that there can be several high-level languages which code can be written in. In particular, Ethereum has a number of languages available: 1. Solidity C the most popular language now (2018). 2. Vyper C A Language by Vitalik Buterin with an emphasis on security 3. LLL C “Low Level Lisp-like Language” 4. Mutan C Golang-like, deprecated in 2015 5. Serpent, Python-like, but seems to be no longer maintained 6. Bamboo

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