CBSA試験無料問題集（230題）「Blockchain BTA Certified Blockchain Solution Architect 認定」

出題：1

The most popular Ethereum development framework is currently Truffle.
What are three features of Truffle? (Select three.)

A. Automated contract testing with Mocha and Chai.

B. Automated contract testing with Mocha only

C. Scriptable deployment & migrations framework.

D. Built-in smart contract compilation, linking, deployment and binary management.

E. Takes Dapp transactions via Ws-rpc, json-rpc, ipc-rpc.

正解：A,C,D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

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

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

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

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

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

正解：D 解答を投票する

出題：3

Which is the following is the metaphor that describes a logical dilemma that plagues many computer networks?

A. Neo Generals' problem

B. Byzantine Generals' problem

C. Renaissance Generals' problem

D. Byzantine Admirals' problem

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

Without 100% autonomy, blockchain software and networks would serve little purpose.

A. FALSE

B. TRUE

正解：B 解答を投票する

出題：5

An _____________ is a well-known service that signs transactions if they state a fact and that fact is considered to be true. They may optionally also provide the facts.

A. endpoint

B. notary

C. node

D. oracle

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

Which of the following is not considered an Ethereum testnet?

A. Rinkeby

B. Ropstein

C. Mainnet

D. Kovan

正解：C 解答を投票する

出題：7

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.

A. Root, Leaf Nodes

B. Leaf Nodes, Root

C. Root, Hash

D. Leaf nodes, Root

E. Has, Root nodes

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：8

The Hyperledger Fabric business network is divided into three categories.
What are the three categories? (Select three.)

A. Blockchain

B. EVM

C. Networking

D. Chaincode

E. Membership

正解：A,D,E 解答を投票する

出題：9

Which one of the following is true regarding Smart Contracts on the Ethereum blockchain?

A. They are Turing complete and deterministic in nature

B. Any flaw discovered in their code can quickly be updated and redeployed

C. They provide added security over off-chain transaction code on other blockchain networks

D. Because they are compiled into bytecode they cannot be used in an unintended manner

正解：A 解答を投票する

出題：10

Looking the graph below, what type of an attack is this likely?

A. P+ Epsilon Attack

B. Blacklisting

C. Selfish Mining Attack

D. 51% Attack

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：11

It is impossible to persist media types such as MP3 and MOV on any distributed ledger.

A. FALSE

B. TRUE

正解：A 解答を投票する

出題：12

Ideal bug reports link the bug being reported to a _______________

A. Regression Issue

B. Progression Issue

C. Business Value

D. Business Process

E. Business Target

正解：C 解答を投票する

出題：13

An encryption algorithm transforms plain text into cipher text using a key?

A. FALSE

B. TRUE

正解：B 解答を投票する

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