Similar MCQs

Technological Knowledge Similar MCQs

Review the selected MCQ and explore related questions from the same subject for better exam preparation.

Selected MCQ

Current Question
What is a 'token' in blockchain context?
  • A. A physical key
  • B. A digital asset representing value or rights
  • C. A password
  • D. VPN software
Correct Answer: B
Explanation:
In blockchain, a token is a digital unit of value or access rights recorded on the ledger.
Related Question 1
What is a token in blockchain contexts?
  • A. A physical key
  • B. A digital asset representing value or rights
  • C. A password
  • D. VPN software
Correct Answer: B
Explanation:
In blockchain, a token is a digital unit of value or access rights recorded on the ledger.
Related Question 2
What ensures blockchain data integrity across nodes?
  • A. Public database
  • B. Hash-linked blocks and consensus
  • C. Encryption keys only
  • D. Trusted server
Correct Answer: B
Explanation:
Blockchain uses cryptographic hashes linking blocks and consensus protocols to maintain integrity.
Related Question 3
Which cryptocurrency uses a blockchain but was the first to implement smart contracts?
  • A. Bitcoin
  • B. Ethereum
  • C. Litecoin
  • D. Ripple
Correct Answer: B
Explanation:
Ethereum introduced smart contracts on the blockchain.
Related Question 4
What is the main goal of blockchain's consensus mechanism?
  • A. To ensure every node has the same data
  • B. To shuffle tokens quickly
  • C. To encrypt all data
  • D. To generate a random number
Correct Answer: A
Explanation:
Consensus mechanisms such as PoW/PoS ensure that all nodes agree on a single history of transactions.
Related Question 5
What does a 'smart contract' on a blockchain enable?
  • A. Self-executing code enforcing an agreement
  • B. Creating private keys
  • C. Consensus mining
  • D. Physical shipping
Correct Answer: A
Explanation:
Smart contracts are code on a blockchain that execute actions when conditions are met.

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