Virtual Labs

Differentiating Blockchain Databases from Conventional Databases

Which of the following best describes a conventional database?

a: A distributed ledger that records transactions across multiple computers. Explanation

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b: A database structure that uses tables to store data and allows for complex queries. Explanation

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c: A database where data is stored in blocks and chained together cryptographically. Explanation

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d: A system where every participant has a full copy of the entire database history. Explanation

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What is a key feature of a blockchain database that differentiates it from conventional databases?

a: It primarily uses SQL for data retrieval and manipulation. Explanation

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b: It can only be accessed by a centralized authority or administrator. Explanation

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c: Its data, once added, becomes immutable and cannot be changed without altering all subsequent blocks. Explanation

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d: It's optimized for rapid transaction speeds and instantaneous data updates. Explanation

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Which statement best captures a fundamental difference between conventional and blockchain databases regarding trust?

a: Conventional databases are always more secure than blockchain databases. Explanation

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b: Trust in blockchain databases is typically established through centralized intermediaries. Explanation

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c: Conventional databases inherently offer data transparency to all its users. Explanation

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d: Blockchain databases are decentralized and use consensus algorithms to establish trust among participants. Explanation

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Which component is unique to blockchain architecture compared to traditional databases?

a: Tables and columns. Explanation

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b: Primary and foreign keys. Explanation

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c: Blocks containing transaction records linked using cryptographic hashes. Explanation

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d: Relational data models. Explanation

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In a conventional database, who typically has the authority to modify or delete data?

a: Every user in the network. Explanation

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b: A consensus algorithm. Explanation

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c: A central administrator or authorized personnel. Explanation

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d: No one can modify or delete data once stored. Explanation

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What ensures the security and integrity of data in a blockchain database?

a: Firewall configurations and antivirus programs. Explanation

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b: Data replication and SQL triggers. Explanation

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c: Consensus mechanisms and cryptographic hashing. Explanation

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d: Manual verification by database administrators. Explanation

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