MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Technical MCQs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Theblock timeis the average time it takes for the network to generate one extra block in the blockchain. |
| A. | TRUE |
| B. | FALSE |
| C. | Can be true or false |
| D. | Can not say |
| E. | |
| Answer» B. FALSE | |
| 2. |
Blocks hold batches of valid transactions that are hashed and encoded into a? |
| A. | merkle tree |
| B. | cryptographic hash |
| C. | genesis block |
| D. | temporaryfork |
| Answer» B. cryptographic hash | |
| 3. |
Which of the following statement is true about blockchain? |
| A. | A blockchain is adecentralized,distributed, and oftentimes public, digital ledger consisting of records calledblocks |
| B. | A blockchain database is managed autonomously using apeer-to-peernetwork and a distributed timestamping server |
| C. | A blockchain has been described as avalue-exchange protocol. |
| D. | All of the above |
| Answer» E. | |
| 4. |
The first blockchain was conceptualized by a person (or group of people) known asSatoshi Nakamotoin? |
| A. | 2005 |
| B. | 2008 |
| C. | 2006 |
| D. | 2004 |
| Answer» C. 2006 | |
| 5. |
Who first proposed a blockchain-like protocol? |
| A. | Stuart Haber |
| B. | W. Scott Stornetta |
| C. | David Chaum |
| D. | Dave Bayer |
| Answer» D. Dave Bayer | |
| 6. |
A blockchain, originally block chain, is a growing list of records, called blocks, that are linked using? |
| A. | Timestamp |
| B. | hash |
| C. | Merkle tree |
| D. | Cryptography |
| Answer» E. | |
| 7. |
Decentralized blockchains are immutable? |
| A. | TRUE |
| B. | FALSE |
| C. | Can be true or false |
| D. | Can not say |
| Answer» B. FALSE | |
| 8. |
In Bitcoin case, blockchain is used in a __________way. |
| A. | decentralized |
| B. | centralized |
| C. | Both A and B |
| D. | None of the above |
| Answer» B. centralized | |
| 9. |
Blockchains store data inthe form of? |
| A. | line |
| B. | circle |
| C. | block |
| D. | rhombus |
| Answer» D. rhombus | |
| 10. |
A blockchain is a type of? |
| A. | Object |
| B. | Database |
| C. | Table |
| D. | View |
| Answer» C. Table | |