Question 1

The fabric framework is implemented on ______programming language.
What programming language?

Options :

A : Go

B : Python

C : Node.js

D : Java

E : JS

Answer: A

Question 2

Select the two kinds of accounts in Ethereum which share the same address space. (Select two.)

Options :

A : Gas Account

B : Contract Accounts

C : External Accounts

D : Internal Accounts

E : dApp Accounts

Answer: B,C

Question 3

In the Proof of Stake(POS) algorithm the miners are really known as ___________?

Options :

A : Notary

B : Oracle

C : Forgers

D : Minters

Answer: C

Question 4

What is the accepted best practice for preventing contract addresses from changing when a new contract is released?

Options :

A : Move your contract to a new blockchain

B : Delete the old contract and add the new version in its place

C : Addresses always change so use a calling contract

D : Use the ''- -addressForce'' parameter when releasing a new contract

Answer: D

Question 5

Consider the following scenario. A startup is building a chat app for smart phones where the messages sent between users are anonymous and get destroyed within 24 hours of being sent.

Which architecture would best solve the product need?

Options :

A : Ethereum for token management and chat messages; Mobile apps use JSON-RPC to communicate directly with Smart Contracts

B : Private blockchain to persist chat messages; Custom built token system with private blockchain smart contract

C : Token management for shareholders in a public blockchain; Mobile apps and data management built on existing multitier systems without use of blockchain

D : Hybrid blockchain for token management with Proof of Stake; private blockchain to persist the chat messages

Answer: C

Free CBSA Mock Exam – Practice Online Confidently

Buying Options: