Question No : 1
What is a hash function?

• A.A one-way function that converts input to a unique string output
• B.A function that stores data behind a key
• C.A two-way function used for condensing information
• D.The block-ID of the block
• E.All the above

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Question No : 2
An asset is defined as __________ .

• A.all records on a database
• B.any data on the ledger
• C.anything of value requiring accountability of ownership
• D.any record on a private network

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Question No : 3
The common safe place to store personal cryptocurrency is __________ .

• A.A digital wallet
• B.in a secure ledger
• C.a bank account
• D.in a secure database

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Question No : 4
A smart contract on the Blockchain provides . Select all that apply

• A.Specific actions to be taken on events or transactions
• B.The same contracts a bank provides
• C.A set of business conditions that must be met
• D.Better anonymity of those making transactions

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Question No : 5
The height of a block is the in the chain between it and the genesis block.

• A.metadata that is
• B.number of blocks
• C.Merkle tree hash
• D.size of the memory cache

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Question No : 6
What is dApp?

• A.A decentralized application
• B.A dishonest application
• C.A decoded application
• D.A distributed application

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Question No : 7
What is Ethereum?

• A.Another name for Bitcoin
• B.A platform for creating decentralized applications
• C.A currency
• D.Another name for Blockchain

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Question No : 8
One of Blockchain’s primary uses of cryptography is __________ .

• A.keeping the network configuration a secret
• B.providing a public and private encryption key
• C.allowing users to communicate with each other anonymously
• D.keeping the
• E.addresses a secret

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Question No : 9
Blockchains are being implemented in the food supply chain because __________ .

• A.consumers demand to know where their food comes from
• B.it allows farm to table accountability for safety
• C.they have the potential to provide fast, specific supplier data
• D.it prevents food waste if a food contamination problem occurs
• E.All of the above

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Question No : 10
Blockchain does not provide?

• A.Security
• B.Immutability
• C.Fault tolerance
• D.Fact Transaction time

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