Question 1

Which of the following provides Immutability?

Accepted Answer

A)  Assurance that a transaction cannot be altered 
B)  Network configuration cannot be changed 
C)  Guarantee that participants will never put bad information on the Blockchain 
D)  Network nodes will never fail 
A)  Assurance that a transaction cannot be altered 
B)  Network configuration cannot be changed 
C)  Guarantee that participants will never put bad information on the Blockchain 
D)  Network nodes will never fail B

Question 2

What means "Forking" the Hyperledger Fabric Github repository? (Select two.)

Accepted Answer

A)  Fork will fork the entire repository including all the branches. 
B)  Forking is not allowed in Github. 
C)  Moving this repository to your GitHub account and removing contents from previous repository. 
D)  Fork will fork the specific repository without all the branches. 
E)  Creating a copy of this repository under your GitHub account. 
A)  Fork will fork the entire repository including all the branches. 
B)  Forking is not allowed in Github. 
C)  Moving this repository to your GitHub account and removing contents from previous repository. 
D)  Fork will fork the specific repository without all the branches. 
E)  Creating a copy of this repository under your GitHub account. A,E

Question 3

What is the application that is used by Hyperledger Fabric to communicate with the network?

Accepted Answer

A)  SDK 
B)  SOAP PI 
C)  Golang 
D)  RPC API 
E)  Node.js 
A)  SDK 
B)  SOAP PI 
C)  Golang 
D)  RPC API 
E)  Node.js A

Question 4

_____________________________provide identity, privacy, and confidentiality to the network and is an abstraction of an architecture for permissioned operations.

Accepted Answer

A)  Certificate Services 
B)  Membership Auditor 
C)  Reputation Manager 
D)  Certificate Manager 
E)  Membership Services 
A)  Certificate Services 
B)  Membership Auditor 
C)  Reputation Manager 
D)  Certificate Manager 
E)  Membership Services

Question 5

The fastest way to test your chaincode is to use the REST interface on your peers. There are several REST endpoints you can test and interact with chaincode. (Select two.)

Accepted Answer

A)  /registrar 
B)  /register 
C)  /chaincode 
D)  /blockchain 
E)  /BaaS 
A)  /registrar 
B)  /register 
C)  /chaincode 
D)  /blockchain 
E)  /BaaS

Question 6

A transaction in Hyperledger Fabric is a request to the blockchain to execute a function on the ledger. By what the function is implemented?

Accepted Answer

A)  Chaincode 
B)  Service Account 
C)  SDK 
D)  API 
A)  Chaincode 
B)  Service Account 
C)  SDK 
D)  API

Question 7

What component on the blockchain maintains the "world state"?

Accepted Answer

A)  Consensus Algorithm 
B)  Reputation Manager 
C)  Consensus Manager 
D)  Distributed Ledger 
A)  Consensus Algorithm 
B)  Reputation Manager 
C)  Consensus Manager 
D)  Distributed Ledger

Question 8

The Hyperledger Project has a modular umbrella schema to its organization which includes three parts of the organizational schema. As part of the organizational schema, it includes an "Infrastructure" Module that is structured with four layers. What layer below is NOT part of the structure?

Accepted Answer

A)  Architecture 
B)  Organizational 
C)  Legal 
D)  Technical 
A)  Architecture 
B)  Organizational 
C)  Legal 
D)  Technical

Question 9

Which tool would you select to that would allow users to measure performance of a specific implementation with predefined use cases?

Accepted Answer

A)  Hyperledger Caliper 
B)  Hyperledger Explorer 
C)  Hyperledger Cello 
D)  Hyperledger Quilt 
A)  Hyperledger Caliper 
B)  Hyperledger Explorer 
C)  Hyperledger Cello 
D)  Hyperledger Quilt

Question 10

What type of node commits transactions & keeps the data in sync across the ledger?

Accepted Answer

A)  Committed 
B)  Endorsed 
C)  Client 
D)  Peer 
A)  Committed 
B)  Endorsed 
C)  Client 
D)  Peer

Question 11

The gossip data dissemination protocol performs which three functions? (Choose three.)

Accepted Answer

A)  Manages peer discovery and channel membership 
B)  Disseminates ledger data across all peers on the channel 
C)  Manages channel membership only 
D)  Sync ledger state across all peers on any channel 
E)  Sync ledger state across all peers on the channel
F) Manages peer discovery only 
A)  Manages peer discovery and channel membership 
B)  Disseminates ledger data across all peers on the channel 
C)  Manages channel membership only 
D)  Sync ledger state across all peers on any channel 
E)  Sync ledger state across all peers on the channel
F) Manages peer discovery only

Question 12

When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program. What does this function do?

Accepted Answer

A)  It is used to access the ledger. 
B)  It is used to access the chaincode interface. 
C)  It is used to access the ledger and modify the ledger. 
D)  It is used to stop the chaincode interface. 
A)  It is used to access the ledger. 
B)  It is used to access the chaincode interface. 
C)  It is used to access the ledger and modify the ledger. 
D)  It is used to stop the chaincode interface.

Question 13

When designing a client application it is important to note that queries are defined in a query file (.qry). Where is this .qry file stored?

Accepted Answer

A)  Parent directory of the business network definition 
B)  /tmp directory of the package.json file 
C)  Child directory of the package.json file 
D)  Child directory of the business network definition 
E)  Parent directory of the package.json file 
A)  Parent directory of the business network definition 
B)  /tmp directory of the package.json file 
C)  Child directory of the package.json file 
D)  Child directory of the business network definition 
E)  Parent directory of the package.json file

Question 14

What must implement every chaincode?

Accepted Answer

A)  Golang 
B)  Chaincode Interface 
C)  Java 
D)  Linux APIs 
A)  Golang 
B)  Chaincode Interface 
C)  Java 
D)  Linux APIs

Question 15

Blockchain services consists of three major components. What are they? (Select three.)

Accepted Answer

A)  Consensus Manager 
B)  Distributed Ledger 
C)  Peer to Peer Protocol 
D)  Reputation Manager 
E)  Membership Services 
A)  Consensus Manager 
B)  Distributed Ledger 
C)  Peer to Peer Protocol 
D)  Reputation Manager 
E)  Membership Services

Question 16

In Hyperledger Fabric, there are three types of peer nodes depending upon the assigned roles.  What are three types? (Choose three.)

Accepted Answer

A)  Committing Peer 
B)  Endorsing Peer 
C)  Peer 
D)  Client peer 
E)  MSP Peer
F) Channel Peer
G) Ordering Peer 
A)  Committing Peer 
B)  Endorsing Peer 
C)  Peer 
D)  Client peer 
E)  MSP Peer
F) Channel Peer
G) Ordering Peer

Question 17

In Hyperledger Composer resources are declared which three ways? (Choose three.)

Accepted Answer

A)  Assets, orderers, transactions, and events 
B)  Concepts 
C)  Assets, participants, transactions, end events 
D)  Collections 
E)  Non Enumerated types
F) Enumerated types 
A)  Assets, orderers, transactions, and events 
B)  Concepts 
C)  Assets, participants, transactions, end events 
D)  Collections 
E)  Non Enumerated types
F) Enumerated types

Question 18

Voting-based algorithms are advantageous in that they provide a benefit but a tradeoff. (Select two.)

Accepted Answer

A)  Trade off between scalability and security. 
B)  Better security due to node control. 
C)  Low-latency finality. 
D)  Trade off between scalability and performance. 
A)  Trade off between scalability and security. 
B)  Better security due to node control. 
C)  Low-latency finality. 
D)  Trade off between scalability and performance.

Question 19

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?

Accepted Answer

A)  Docker provides a secured, lightweight method to sandbox chaincode execution that is "locked down". 
B)  Docker provides a secured, lightweight method to sandbox chaincode execution that is "locked down" but additional programming languages cannot be enabled 
C)  Docker provides a secured, lightweight method to sandbox chaincode execution that is not "locked down" 
D)  Docker is fully compatible with Hyperledger and Linux with an upgrade subscription. 
A)  Docker provides a secured, lightweight method to sandbox chaincode execution that is "locked down". 
B)  Docker provides a secured, lightweight method to sandbox chaincode execution that is "locked down" but additional programming languages cannot be enabled 
C)  Docker provides a secured, lightweight method to sandbox chaincode execution that is not "locked down" 
D)  Docker is fully compatible with Hyperledger and Linux with an upgrade subscription.

Question 20

Which of the following would not be a good use case for Hyperledger Fabric?

Accepted Answer

A)  Cryptocurrency Exchange 
B)  Compliance Ledger 
C)  Business Contracts 
D)  Asset Exchange 
A)  Cryptocurrency Exchange 
B)  Compliance Ledger 
C)  Business Contracts 
D)  Asset Exchange

Which of the following provides Immutability?

What means "Forking" the Hyperledger Fabric Github repository? (Select two.)

What is the application that is used by Hyperledger Fabric to communicate with the network?

_____________________________provide identity, privacy, and confidentiality to the network and is an abstraction of an architecture for permissioned operations.

The fastest way to test your chaincode is to use the REST interface on your peers. There are several REST endpoints you can test and interact with chaincode. (Select two.)

A transaction in Hyperledger Fabric is a request to the blockchain to execute a function on the ledger. By what the function is implemented?

What component on the blockchain maintains the "world state"?

The Hyperledger Project has a modular umbrella schema to its organization which includes three parts of the organizational schema. As part of the organizational schema, it includes an "Infrastructure" Module that is structured with four layers. What layer below is NOT part of the structure?

Which tool would you select to that would allow users to measure performance of a specific implementation with predefined use cases?

What type of node commits transactions & keeps the data in sync across the ledger?

The gossip data dissemination protocol performs which three functions? (Choose three.)

When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program. What does this function do?

When designing a client application it is important to note that queries are defined in a query file (.qry). Where is this .qry file stored?

What must implement every chaincode?

Blockchain services consists of three major components. What are they? (Select three.)

In Hyperledger Fabric, there are three types of peer nodes depending upon the assigned roles. What are three types? (Choose three.)

In Hyperledger Composer resources are declared which three ways? (Choose three.)

Voting-based algorithms are advantageous in that they provide a benefit but a tradeoff. (Select two.)

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?

Which of the following would not be a good use case for Hyperledger Fabric?

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Exam 3: BTA Certified Blockchain Developer - Hyperledger

Which of the following provides Immutability?

What means "Forking" the Hyperledger Fabric Github repository? (Select two.)

What is the application that is used by Hyperledger Fabric to communicate with the network?

_____________________________provide identity, privacy, and confidentiality to the network and is an abstraction of an architecture for permissioned operations.

The fastest way to test your chaincode is to use the REST interface on your peers. There are several REST endpoints you can test and interact with chaincode. (Select two.)

A transaction in Hyperledger Fabric is a request to the blockchain to execute a function on the ledger. By what the function is implemented?

What component on the blockchain maintains the "world state"?

The Hyperledger Project has a modular umbrella schema to its organization which includes three parts of the organizational schema. As part of the organizational schema, it includes an "Infrastructure" Module that is structured with four layers. What layer below is NOT part of the structure?

Which tool would you select to that would allow users to measure performance of a specific implementation with predefined use cases?

What type of node commits transactions & keeps the data in sync across the ledger?

The gossip data dissemination protocol performs which three functions? (Choose three.)

When reviewing chaincode you see a function called "ChaincodeStubInterface" in the program. What does this function do?

When designing a client application it is important to note that queries are defined in a query file (.qry). Where is this .qry file stored?

What must implement every chaincode?

Blockchain services consists of three major components. What are they? (Select three.)

In Hyperledger Fabric, there are three types of peer nodes depending upon the assigned roles. What are three types? (Choose three.)

In Hyperledger Composer resources are declared which three ways? (Choose three.)

Voting-based algorithms are advantageous in that they provide a benefit but a tradeoff. (Select two.)

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?

Which of the following would not be a good use case for Hyperledger Fabric?

Certified Blockchain Business Foundations

BTA Certified Blockchain Developer - Ethereum

BTA Certified Blockchain Solution Architect

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