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EmTech > Blockchain > Flashcards

Blockchain Flashcards

1
Q

________ consensus mechanism is the
fundamental characteristic defining blockchain technology

A

Decentralized

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2
Q

Blockchain _____ introduced smart contracts and expanded beyond cryptocurrencies.

A

2.0

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3
Q

________ Blockchain restricts participation to a specific group or consortium.

A

Private

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4
Q

_______ blockchains lack transferable value units compared to tokenized blockchains.

A

Tokenless

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5
Q

The purpose of a ______ ____ is to sign digital transactions

A

private key

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6
Q

________ _____ _______ uses a single secret key for both encryption and decryption.

A

Symmetric Key Cryptography

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7
Q

A _____ function in blockchain technology creates unique identifiers for data.

A

hash

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8
Q

_______ ______ is known for its offline storage to enhance security

A

Cold Wallet

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9
Q

The primary function of ___-____ solutions in blockchain scalability is to increase transaction throughput.

A

off-chain

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10
Q

In the context of blockchain, ________ refer to all cryptocurrencies except Bitcoin.

A

altcoins

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11
Q

The focus of _________ within the blockchain ecosystem is enterprise-grade blockchain solutions.

A

Hyperledger

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12
Q

________ is the scalability solution that involves partitioning the blockchain database to improve performance.

A

Sharding

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13
Q

The Blockchain __________ aims to balance decentralization, scalability, and security

A

Trilemma

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14
Q

Open participation and governance distinguish a public blockchain from a private blockchain. (True / False)

A

True

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15
Q

________ _________ _______ allows devices with limited resources to verify Bitcoin transactions.

A

Simplified Payment Verification (SPV)

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16
Q

PBFT stands for _____________

A

Practical Byzantine Fault Tolerance

17
Q

_____________ security is essential for transactions on a blockchain to ensure network integrity

A

Cryptographic

18
Q

The primary focus of Blockchain ____ is financial services and smart contracts.

A

2.0

19
Q

_________ _________ refers to the concept of autonomous agents making decisions on behalf of people on a blockchain

A

Machina Economicus

20
Q

Blockchain ____ is associated with applications beyond the financial industry, such as in health and media.

A

3.0

21
Q

The ______ theorem describes the challenge of achieving Consensus, Availability, and Partition tolerance in the context of blockchain.

A

CAP (aka Brewer’s theorem)

22
Q

The main challenge addressed by the Practical Byzantine Fault Tolerance (PBFT) algorithm is agreement among nodes in the presence of _________.

A

faults

23
Q

Practical Byzantine Fault Tolerance (PBFT) algorithm solved the Byzantine Generals Problem in _______.

A

1999

EmTech (4 decks)

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