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Viewing page 5 out of 6 pages
Viewing questions 41-50 out of questions
Questions # 41:

Hyperledger fabric business network is divided into which of the following categories?

Options:
A.

Composer, Fabric and Chaincode

B.

Sawtooth, Fabric and Indy

C.

Blockchain, Registration, Identity

D.

Blockchain, Chaincode and Membership

Questions # 42:

Hyperledger Explorer is what type of web application? (Select two.)

Options:
A.

A Nodejs based web app which runs on Node/Express

B.

A JS based web app which runs on Node/ExpressJS

C.

Uses PostGres SQL as the backend database

D.

Uses MySQL as the backend database

Questions # 43:

Level DB is the default database for Hyperledger Fabric and is particularly appropriate when ledger states comprise what type of data?

Options:
A.

Complex key-value pairs

B.

Rich Queries

C.

JSON data pairs

D.

Simple key-value pairs

Questions # 44:

Which of the following is not a feature of a Hyperledger Fabric ledger?

Options:
A.

Read-only history queries – Query ledger history for a key, enabling data provenance scenarios

B.

Read-only queries using a rich query language (if using CouchDB as state database)

C.

Read-only queries using a rich query language (if using LevelDB as state database)

D.

Query and update ledger using key-based lookups, range queries, and composite key queries.

Questions # 45:

Business Network Application Model is created in Composer using:

Options:
A.

Composer Javascript Model API

B.

Composer Runtimes

C.

Composer Modelling Language

Questions # 46:

Chaincode Services uses___________________ to host (deploy) the chaincode.

What does Chaincode services in Hyperledger use?

Options:
A.

Virtual Machines

B.

Kubernetes

C.

Deployment Manager

D.

Yaml

E.

Docker

Questions # 47:

Which of the following is the best answer when reviewing a "Code Invoking Transaction" in Hyperledger Fabric?

Options:
A.

Code invoking transaction is an SOAP API call to a chaincode function and is similar to how a URL pattern invokes a servlet in J2EE.

B.

Code invoking transaction is an REST API call to a chaincode function and is similar to how a URL pattern invokes a servlet in Node.js

C.

Code invoking transaction is an API call to a chaincode function and is similar to how a URL pattern invokes a servlet in Node.js

D.

Code invoking transaction is an REST API call to a chaincode function and is similar to how a URL pattern invokes a servlet in J2EE.

E.

Code invoking transaction is an API call to a chaincode function and is similar to how a URL pattern invokes a servlet in HTTPS

F.

Code invoking transaction is an RPC API call to a chaincode function and is similar to how a URL pattern invokes a servlet in HTTPS.

Questions # 48:

What is the best definition of chaincode with Hyperledger?

Options:
A.

Chaincode is a decentralized transactional program, running one the validating nodes.

B.

Chaincode is centralized transactional program, running on the validating nodes.

C.

Chaincode is centralized transactional program, running on the peer nodes.

D.

Chaincode is a decentralized transactional program, running on the peer nodes.

Questions # 49:

Which function is not required in Hyperledger Fabric chaincode?

Options:
A.

Start

B.

nit N

C.

Invoke

Questions # 50:

Exhibit.

Question # 50

The function displayed will not return an error if:

Options:
A.

the number of arguments does not equal 3

B.

the number of arguments is greater than 3

C.

the number of arguments equal 3

D.

the number of arguments equal 4

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