CBSA無料問題集「Blockchain BTA Certified Blockchain Solution Architect」

質問 1

Regarding Ethereum contracts, the contracts can call (perform) two specific message calls. The message calls are either _____________ or __________? (Select two.)

正解：B、C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

In what year did a whitepaper that was published by "Satoshi Nakamoto" outlined a solution to the Byzantine Generals problem?

（A）2009

（B）2010

（C）2006

（D）2008

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

Pending transactions on the Ethereum blockchain are always ordered by highest fee paid to lowest, and then written to the block in that order.

（A）FALSE

（B）TRUE

正解：A 解答を投票する

質問 4

Smart Contracts are generally written in specific programming languages. Which one is NOT a language for smart contracts?

（A）.Net

（B）Viper

（C）Solidity

（D）LLL

正解：A 解答を投票する

質問 5

A Smart Contract is most like which classical programming object?

（A）Variable

（B）Function

（C）Class

（D）Method

正解：B 解答を投票する

質問 6

Ideal bug reports link the bug being reported to a _______________

正解：A 解答を投票する

質問 7

You currently using the Metamask Chrome plugin and you see a selection for Etherescan in the plugin.
What is Etherscan used for?

（A）A search engine that allows users to easily lookup, confirm and validate transaction that have taken place on the Ethereum and Tokens Blockchain

（B）A search engine that allows users to easily lookup, confirm and validate transaction that have taken place on the Bitcoin Blockchain

（C）A search engine that allows users to easily lookup, confirm and validate transaction that have taken place on any Blockchain

（D）A search engine that allows users to easily lookup, confirm and validate transaction that have taken place on the Ethereum Blockchain

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

Which of the following is considered the most popular public key encryption algorithm?

（A）AES

（B）RSA

（C）MD5

（D）PGP

正解：D 解答を投票する

質問 9

The ____________of the tree is the topmost node and hence this tree is represented upside down. The bottommost nodes are called as ________nodes. Each node is simply a cryptographic hash of a transaction.

In the above diagram, Transaction A,B, C,C from the leaves of the tree. Select one.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

Hyperledger is an enterprise focused blockchain project. This project was released by a consortium under the umbrella of the Linux Foundation's Hyperledger Project.
What year did Hyperledger go live?

（A）2013

（B）2009

（C）2012

（D）2015

正解：D 解答を投票する

質問 11

If a hard fork occurs on a public blockchain software and 20 running nodes choose not to update, what can be said about those 20 nodes?

（A）They are unable to achieve consensus

（B）They are effectually now operating on a different blockchain network than the nodes that updated

（C）They are flagged for removal from the network and can no longer collect fees

（D）They are considered "out of compliance"

正解：B 解答を投票する

質問 12

If a company desires to create a unique cryptocurrency and launch a new blockchain network to host it.

（A）They must use ERC20 standard for the token and can use any open source blockchain tool/system to launch a series of nodes

（B）They can both create their own cryptocurrency and launch their own blockchain network with any common open source blockchain tool/system

（C）None of the above

（D）They must use ERC20 standard for the token, clone the Ethereum Virtual Machine, then launch a series of nodes

正解：B 解答を投票する

質問 13

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 the foundation principles that allow blockchain to operate successfully

（D）Are highly valuable in some use cases and completely undesirable in other use cases

正解：C 解答を投票する

CBSA 無料問題集「Blockchain BTA Certified Blockchain Solution Architect」

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