The fabric framework is implemented on ____________programming language. What programming language?
Answer(s): A
The fabric framework is implemented on Go. Since assets in Hyperledger Fabric are represented in JSON or Binary, hyperledger includes the REST and JSON RPC APIs, events, and an SDK for applications to communicate with the network.
What is provided by the Hyperledger Fabric to facilitate network communications?
Answer(s): B
The CA (Fabric CA by default) issues a ____________to each member (organization or individual) that is authorized to join the network.
The CA (Fabric CA by default) issues a root certificate (rootCert) to each member (organization or individual) that is authorized to join the network
Chaincode Services uses Docker to host (deploy) the chaincode without relying on any virtual machine or computer language.What would be the main reason or best reason that Hyperledger chose containers over virtual machines?
Answer(s): C
Docker provides a secured, lightweight method to sandbox chaincode execution that is "locked down" Chaincode Services uses Docker to host (deploy) the chaincode without relying on any virtual machine or computer language. Docker provides a secured, lightweight method to sandbox chaincode execution. The environment is a "locked down" and secured container, along with a set of signed base images containing secure OS and chaincode language, runtime and SDK images for Golang Additional programming languages can be enabled
Chaincode is a decentralized transactional program, running on the validating nodes. As with every chaincode, it implements the ____________in particular, Init and Invoke functions.What does is actually implemented?
Answer(s): D
Chaincode is a decentralized transactional program, running on the validating nodes. As with every chaincode, it implements the Chaincode interface in particular, Init and Invoke functions. Init is called during Instantiate transaction after the chaincode container has been established for the first time, allowing the chaincode to initialize its internal data. Invoke is called to update or query the ledger in a proposal transaction. Updated state variables are not committed to the ledger until the transaction is committed.
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