CBSA by Blockchain Actual Free Exam Q&As

Question 1

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. 2015 C. 2009 D. 2012

Discussion 0

Correct Answer: B Vote an answer

Question 2

Proof of Stake offers which advantage over Proof of Work?

A. It is compatible with new generation chipsets B. None of the above C. It has a longer history and deeper knowledge base D. Greater transaction speed

Discussion 0

Correct Answer: B Vote an answer

Question 3

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

A. 2006 B. 2008 C. 2010 D. 2009

Discussion 0

Correct Answer: B Vote an answer

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Question 4

Which of the following enterprise blockchain platforms does not have smart contract functionality?

A. Ethereum B. Ripple C. Hyperledger Fabric D. R3 Corda E. Quorum

Discussion 0

Correct Answer: B Vote an answer

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Question 5

In Hyperledger Fabric, the smart contract logic is also called by two other names _______________ and
______________? (Select two.)

A. Ripple B. CordApps C. Ledger D. DApps E. Chaincode F. Programmatic Logic

Discussion 0

Correct Answer: E,F Vote an answer

Question 6

In public key cryptography, the public key is used to:

A. Verify the digital signature of a given key pair B. Decrypt the private key so valid transactions/actions can be performed C. Encrypt the private key D. Sign/approve any transaction/action that might be made by the holder of the key pair

Discussion 0

Correct Answer: C Vote an answer

Question 7

When you are developing with Fabric Composer which of the following is true?

A. Increases the time of development B. Simplifies the integration of client applications C. Decreases the time of development D. Simplifies the development of applications

Discussion 0

Correct Answer: C Vote an answer

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Question 8

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

A. Bitcoin nodes B. Send Ether to non-contract C. Other contracts D. DApps E. Ether Nodes

Discussion 0

Correct Answer: B,C Vote an answer

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Question 9

What is the difference in using Go-Ethereum over Ganache?

A. Ganache is a real blockchain whereas Go Ethereum is a blockchain simulation B. Go Ethereum is real blockchain whereas Ganache is a blockchain simulation C. Can automate builds with Go Ethereum but you can't with Ganache D. Go Ethereum is written in Java whereas Ganache is written in Golang

Discussion 0

Correct Answer: D Vote an answer

Question 10

When you considering cryptography for a blockchain what would be types of symmetric cryptography you could consider? (Select two.)

A. Elliptical Curve Cryptography B. Rivest-Shamir-Adleman algorithm aka the RSA. C. Block Ciphers D. Stream Ciphers

Discussion 0

Correct Answer: C,D Vote an answer

Question 11

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. node C. notary D. oracle

Discussion 0

Correct Answer: D Vote an answer

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Question 12

Ideal bug reports link the bug being reported to a _______________

A. Business Target B. Regression Issue C. Progression Issue D. Business Value E. Business Process

Discussion 0

Correct Answer: D Vote an answer

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