Final Exam: Blockchain Smart Contracts Programmer

WHAT YOU WILL LEARN

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  distinguish between "view" and "pure" functions
  

  use the configtxgens tool to create the Fabric network's first genesis block and channel
  

  use NodeJS to code an application that will create an admin user for an organization connected to a Hyperledger Fabric network
  

  recognize what is required to make an application portable across environments
  

  describe the use of Docker to define images and use them to provision containers
  

  code the Invoke method and different operations that can be called in a Go smart contract
  

  define the Init method in a Go smart contract for the Fabric network
  

  write an application in NodeJS that will use admin credentials in order to provision an application user
  

  download Hyperledger Fabric artifacts as well as the Docker images needed to provision a network
  

  deploy the smart escrow contract and verify the validation checks
  

  identify what makes containers much more lightweight than virtual machines
  

  provision a new Hyperledger Fabric network by reusing some of the configurations generated previously
  

  connect to the cloud-based Hyperledger Composer environment and recognize the syntax of the CTO modeling language
  

  recall the origins of the Hyperledger project and its approach towards building blockchain solutions
  

  specify integer types to represent ether or time units and recall the globally accessible properties and functions
  

  demonstrate how to build a smart contract to conduct a poll using Solidity data structures and functions
  

  describe the composite types in Solidity such as structs and mappings and their limitations
  

  describe the different blockchain implementations offered by Hyperledger
  

  use the Hyperledger Composer Playground tool to test different scenarios for a business blockchain network
  

  install and launch the Ganache tool which instantly spins up a private Ethereum network to help with contract development
  

  list the steps involved in setting up a Fabric network without using any of the Hyperledger tools
  

  recognize how to write a getter function to return the value of a state variable in a smart contract
  

  set the visibility level of functions to restrict access when required
  

  build and deploy smart contracts utilizing constructor arguments
  

  identify the different ways in which the return types of a function can be specified
  

  store and access key and value pairs using Solidity's mapping data structure
  

  download and install the Angular JS app supplied by Hyperledger to interact with the deployed Composer network
  

  recognize the effect of using the "pure" access modifier for a function which does not access the contract state
  

  deploy the smart bank contract and enroll a customer
  

  set up a Hyperledger Fabric network to which the Composer network can be installed
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  use a fallback function to allow a smart contract to receive Ether
  

  use the selfdestruct function to delete a smart contract from the Ethereum network
  

  deploy a business blockchain network to a test environment on Hyperledger Composer Playground
  

  demonstrate how to invoke a function to transmit Ether to a specified Ethereum account
  

  identify the types of rules that can be defined in the access control list (ACL) for a Hyperledger Composer network
  

  initialize the Hyperledger Composer REST API server so that it can be used to interact with a deployed blockchain network
  

  identify what a smart contract is and contrast it with a traditional contract
  

  use the Angular app for Hyperledger Composer to create instances of assets and participants and to record transactions on the deployed blockchain network
  

  recognize what constitutes a reference type in Solidity and the way such data need to be handled
  

  define a smart contract to hold ether and transfer it to a specified account once a certain number of approvals have been obtained
  

  recognize what constitutes a blockchain and how it is used to store a collection of records
  

  build a smart contract and examine the outputs generated by the Solidity compiler
  

  identify the options and templates supplied by Hyperledger Composer Playground to build out business blockchain networks
  

  deploy a smart contract to an Ethereum network within the Remix IDE and then access the contract state variables
  

  define arrays in Solidity and access and set specific elements within them
  

  identify the characteristics of public blockchain networks and their limitations
  

  recognize the syntax of if statements and for loops
  

  identify the effect of using the "view" access modifier for a function
  

  work with events and use them in smart contracts to log activities
  

  recall the details required in the transaction processing script for a Hyperledger Composer network
  

  recognize what a blockchain is and how it offers a mechanism to record transactions in a secure manner
  

  identify the primitive data types supported in the Solidity language such as boolean and int and the kinds of operations which can be performed with them
  

  verify the features implemented in the application by accessing the UI and invoking queries and transactions
  

  connect to the cloud-based Remix IDE and recognize its key features for smart contract development
  

  install tools such as the Composer REST Server and Yeoman to simplify the building of apps for Hyperledger Composer
  

  use a struct to store and access composite data within one object
  

  describe what Ethereum is and list the characteristics which make it such a widely used blockchain network
  

  define a smart contract to send Ether from your contract to another Ethereum account using the transfer function
  

  develop a smart contract to function as a bank that is capable of enrolling customers and allows them to deposit and withdraw ether
  

  install, instantiate, and invoke a function on the NodeJS chaincode