Quiz 2 Blockchain

A user can alter data on a blockchain

• True

• False

Smart Contract characteristics do not include

• Alterable

• Fast and cost-effective

• A high degree of accuracy

• Transparency

What is a smart contract?

• Programs stored on a blockchain that run when conditions are met

• Digital contract

• Online contract

• All the above

The fixed-length output is called a ?

• hash

• bitcoin

• data

• value

When a hash function is used to provide message authentication, the hash function value is referred to as

• Message Field

• Message Score

• Message Digest

• Message Leap

A blockchain is a type of___?

• Object

• Database

• Table

• View

For the simple symmetric key,it is easy to derive the secret key from the encrypted data.

• True

• False

What is a DApp?

• A type of cryptocurrency

• A condiment

• A type of blockchain

• A decentralized application

Hash identifying each block in the blockchain is generated using which of the following cryptographic algorithm?

• SHA128

• SHA256

• Both of them

• None of them

Asymmetric encryption uses

• Public Keys only

• Public and Private Keys

• Private Keys only

• Proof of Stake