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The concept of a node is common in most blockchains. Which of the following about nodes is INCORRECT?
Nodes use a Peer to Peer protocol not a Client Server. The concept of node is common in all blockchain technologies. The ''Node'' becomes the communication end point in blockchain technology. Nodes connect to other nodes and that is how a blockchain is formed. Nodes use a type of peer-to-peer protocol for keeping the distributed ledger in sync across the network.
Hyperledger Fabric Composer allows for an easy front end application development experience without having to know the network internal application structure.
How is this done in Hyperledger Fabric?
REST API support and integration capabilities: A LoopBack connector for business networks has been developed that exposes a running network as a REST API which can easily be consumed by client applications and integrate non-blockchain applications. This allows for easier front end application development without having to know the network internal application structure.
Composer Modeling Language is an object-oriented modeling language that defines the domain model for a business network definition. Essentially this is saved as a .cto file.
Which of the following is NOTa characteristics of a .cto file?
Values can be assigned to any field variable A CTO file consists of:
A single namespace, in which all resource declarations are implicitly.
The overall ''model'' defines the representation of assets.
A set of resource definitions that includes assets, transactions, participants, and events.
Values may be assigned to any field variable.
The option to import resources from other namespaces.
When using composer modeling language, the words ''asset'' and ''participant'' are reserved.
Asset ownership instance is defined in a relationship field. (symbol: o)
The modeling language does not support multiple inheritance.
All of the following are key terms in Cryptography EXCEPT?
Cryptography is used in Blockchain to address the issues and concerns of privacy. Cryptography is the study of how to send information back and forth securely in the presence of adversaries. A cryptographic function is a function for encoding or encrypting data to protect the contents from others. The following components are the basis of a cryptographic function: The Secret: The data which we are trying to protect The Key: A piece of data used for encrypting and decrypting the secret The Function: The process or function used to encrypt the secret The Cipher: The encrypted secret data, output of the function The Secret and the Key are passed into the Function to create a Cipher.
The gossip data dissemination protocol performs which three functions? (Choose three.)
Gossip Protocol The gossip data dissemination protocol performs three functions Manages peer discovery and channel membership Disseminates ledger data across all peers on the channel Syncs ledger state across all peers on the channel.
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