What does the "finality" quality of service provide to blockchain?
a. Agreement that a transaction occurred
b. History of transactions
c. An append-only data structure
d. Transactions cannot be backed out - Correct Answer d. Transactions cannot be backed out
Which of the following facts ab...
IBM Blockchain (ANSWERED AND GRADED)
What does the "finality" quality of service provide to blockchain?
a. Agreement that a transaction occurred
b. History of transactions
c. An append-only data structure
d. Transactions cannot be backed out - Correct Answer d. Transactions cannot be backed out
Which of the following facts about assets is true?
a. Assets are anything that is capable of being owned or controlled to produce value
b. Assets are always tangible
c. Cash is not considered an asset, because it is anonymous
d. The value of an asset cannot change over the course of its lifecycle - Correct Answer a. Assets are
anything that is capable of being owned or controlled to produce value
Which of the following blockchain use cases is an example of an Asset Exchange pattern?
a. Transfer of high value assets between many participants
b. Sharing of assets (voting, dividend notification)
c. Sharing of key reference data
d. Real-time view of compliance, audit & risk data - Correct Answer b. Sharing of assets (voting,
dividend notification)
Which phrase best describes blockchain?
a. Shared replicated ledger
b. Proof of Work
c. Inefficient, Expensive, Vulnerable
d. Peer-to-peer electronic cash system - Correct Answer a. Shared replicated ledger
Which of the following facts about ledgers is true?
a. Businesses are required to have exactly one ledger
,b. Ledgers are used for reporting of cash only
c. Ledgers are logs of transactions
d. All of these facts are true - Correct Answer c. Ledgers are logs of transactions
Which of the following blockchain use cases is an example of a High Value Market pattern?
a. Transfer of high value assets between many participants
b. Sharing of assets (voting, dividend notification)
c. Sharing of key reference data
d. Real-time view of compliance, audit & risk data - Correct Answer a. Transfer of high value assets
between many participants
Bitcoin cryptocurrency is a peer-to-peer "electronic cash system" that is not for other types of assets.
What factors make Bitcoin unsuitable as a blockchain for business?
a. Requirements surrounding identity
b. Transaction privacy and confidentiality
c. Timely confirmation of transactions
d. All of the above - Correct Answer d. All of the above
In a traditional Blockchain example, Each participant keeps their own ledger(s) which are updated to
represent business transactions as they occur.
a. True
b. False - Correct Answer a. True
Which of the following statement is true about Bitcoin?
a. Combination of Ledger and Asset
b. Not associated with Ledger
c. Assets can be anything of value
d. All of the above - Correct Answer a. Combination of Ledger and Asset
, Endorsement is the process by which the network verifies a transaction. Which statement is true with
blockchain endorsement?
a. It is a low cost process in public blockchains without identity
b. The process requires high CPU usage for "Proof of Work"
c. Transactions are provably endorsed by relevant participants
d. It requires the whole network for endorsement - Correct Answer c. Transactions are provably
endorsed by relevant participants
Looking at the cryptocurrency market as a whole, which is the biggest differentiator between
cryptocurrency instances?
a. The commodity being stored
b. The codebase on which the cryptocurrency is based
c. Volatility
d. How transactions are validated - Correct Answer a. The commodity being stored
With so many existing blockchain implementations, which of the following is (are) key indicator(s) of
needs for blockchain standardization?
a. They are largely not interoperable
b. The problem of discoverability
c. It is unlikely that a single blockchain technology can solve all needs
d. All of these - Correct Answer d. All of these
Upon which license is Hyperledger based?
a. Public domain
b. LGPL
c. Linux Foundation Proprietary
d. Apache 2 - Correct Answer d. Apache 2
Hyperledger Fabric framework is intended as a foundation for developing applications or solutions with
a. A modular architecture
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