Question 1

What does REST stand for?

Accepted Answer

A)  REST (Restructured State Transfer) 
B)  REST (Restructured State Transmission) 
C)  REST (Representational State Transmission) 
D)  REST (Real Time State Transfer) 
E)  REST (Representational State Transfer) 
A)  REST (Restructured State Transfer) 
B)  REST (Restructured State Transmission) 
C)  REST (Representational State Transmission) 
D)  REST (Real Time State Transfer) 
E)  REST (Representational State Transfer)

Question 2

Please review the chaincode below and select what "import" is specifying.

Accepted Answer

A)  Menu Choices 
B)  Installation requirements 
C)  Dependencies 
D)  Logging requests 
A)  Menu Choices 
B)  Installation requirements 
C)  Dependencies 
D)  Logging requests

Question 3

________________ endorsement allows the default chaincode-level endorsement policies to be overridden by a different policy for the specified keys. What type of endorsement is this?

Accepted Answer

A)  Policy Driven 
B)  Key-Value 
C)  Stateless 
D)  State based 
A)  Policy Driven 
B)  Key-Value 
C)  Stateless 
D)  State based

Question 4

Reviewing the code below what are the two possible outcomes of the functions? (Select two.)

Accepted Answer

A)  Success 
B)  Shim.Error 
C)  Shim.Success 
D)  Error 
A)  Success 
B)  Shim.Error 
C)  Shim.Success 
D)  Error

Question 5

In Hyperledger Fabric channels are used to ensure privacy and confidentiality. Which of the following is not correct about channels?

Accepted Answer

A)  Peers are connected to the channel and can receive all the transactions that are broadcasted on that channel 
B)  Each channel maintains their own chaincode and ledger 
C)  Channels are membership based. 
D)  Consensus takes place within a channel by members of the channel and other channels. 
E)  Channels partition the network in order to allow transaction visibility for specific stakeholders only 
A)  Peers are connected to the channel and can receive all the transactions that are broadcasted on that channel 
B)  Each channel maintains their own chaincode and ledger 
C)  Channels are membership based. 
D)  Consensus takes place within a channel by members of the channel and other channels. 
E)  Channels partition the network in order to allow transaction visibility for specific stakeholders only

Question 6

Which of the following is a role in Fabric that has permission to create transactions and query network data?

Accepted Answer

A)  Chain Transactor 
B)  Chain Administrator 
C)  Chain Auditor 
D)  Chain Member 
A)  Chain Transactor 
B)  Chain Administrator 
C)  Chain Auditor 
D)  Chain Member

Question 7

_________is called to update or query the ledger in a proposal transaction. This is called by the chaincode.

Accepted Answer

A)  Initialize 
B)  Init 
C)  Update 
D)  Invoke 
A)  Initialize 
B)  Init 
C)  Update 
D)  Invoke

Question 8

What is the process of turning cipher-text back into plaintext called?

Accepted Answer

A)  Packing 
B)  Encryption 
C)  Decryption 
D)  Hashing 
A)  Packing 
B)  Encryption 
C)  Decryption 
D)  Hashing

Question 9

Which Hyperledger tool provides an open source browser for viewing activity on the underlying blockchain network?

Accepted Answer

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

Question 10

When the________, ______________ or ________function of a chaincode is called, the fabric passes the stub *shim.ChaincodeStub parameter. (Select three.)

Accepted Answer

A)  Query 
B)  List 
C)  Invoke 
D)  Init 
E)  Write
F) Delete 
A)  Query 
B)  List 
C)  Invoke 
D)  Init 
E)  Write
F) Delete

Question 11

All of the following are key terms in Cryptography EXCEPT?

Accepted Answer

A)  Function 
B)  Root Hash 
C)  Secret 
D)  Code 
E)  Cipher 
A)  Function 
B)  Root Hash 
C)  Secret 
D)  Code 
E)  Cipher

Question 12

Hyperledger Composer has the following two main components.

Accepted Answer

A)  Composer Framework and a Business Network Archive 
B)  Composer Playground and a Business Network Configuration 
C)  Composer Playground and a Business Network Archive 
D)  Distributed Ledger and a Business Network Archive 
E)  Distributed Ledger and Composer playground 
A)  Composer Framework and a Business Network Archive 
B)  Composer Playground and a Business Network Configuration 
C)  Composer Playground and a Business Network Archive 
D)  Distributed Ledger and a Business Network Archive 
E)  Distributed Ledger and Composer playground

Question 13

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

Accepted Answer

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 
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

Question 14

The CA (Certificate Authority) in Hyperledger Fabric issues the certificates. These certificates are used for identity validation and for transmission of encrypted data that only the owner (person, organization or software) of a specific certificate is able to decrypt and read. What types of certificates are issued by the CA?

Accepted Answer

A)  tcert 
B)  ecert 
C)  rootcert 
A)  tcert 
B)  ecert 
C)  rootcert

Question 15

In Composer when declaring arguments are used to pass values. What argument value is NOT a value that is allowed?

Accepted Answer

A)  string 
B)  integer 
C)  number 
D)  boolean 
A)  string 
B)  integer 
C)  number 
D)  boolean

Question 16

Hyperledger can best be described as which of the following?

Accepted Answer

A)  A Newer Version of Proof of Stake 
B)  An IBM owned solution that is a single blockchain 
C)  A newer version of Proof of Work 
D)  An effort to advance cross-industry blockchain technologies 
A)  A Newer Version of Proof of Stake 
B)  An IBM owned solution that is a single blockchain 
C)  A newer version of Proof of Work 
D)  An effort to advance cross-industry blockchain technologies

Question 17

In Hyperledger not all Nodes are created equal. What are the three distinct types of nodes? (Select three.)

Accepted Answer

A)  MSP Nodes 
B)  Ordered Nodes 
C)  Channel Node 
D)  Client Nodes 
E)  Peer Nodes
F) Endorser Node 
A)  MSP Nodes 
B)  Ordered Nodes 
C)  Channel Node 
D)  Client Nodes 
E)  Peer Nodes
F) Endorser Node

Question 18

Blockchain services in Hyperledger Fabric manages the distributed ledger through a peer to peer protocol that is built on ______?

Accepted Answer

A)  HTTP/2 
B)  TLS and SSL 
C)  TLS 
D)  HTTP/1 
E)  SSL 
A)  HTTP/2 
B)  TLS and SSL 
C)  TLS 
D)  HTTP/1 
E)  SSL

Question 19

What function is used to call the shim.Start function below?

Accepted Answer

A)  import 
B)  init 
C)  main 
D)  type 
A)  import 
B)  init 
C)  main 
D)  type

Question 20

Hyperledger Fabric essentially implements a private validator network protocol. Which of the following statements are true?

Accepted Answer

A)  None of the entities in a network must register with membership services to obtain with access and transaction authority on the network. 
B)  Selected entities in a network must register with membership services to obtain an identity with access and transaction authority on the network. 
C)  All the entities in a network must register with membership services to obtain an identity with access and transaction authority in the network. 
D)  Selected entities in a network must register with Reputation Manager to obtain an identity with access and transaction authority on the network. 
A)  None of the entities in a network must register with membership services to obtain with access and transaction authority on the network. 
B)  Selected entities in a network must register with membership services to obtain an identity with access and transaction authority on the network. 
C)  All the entities in a network must register with membership services to obtain an identity with access and transaction authority in the network. 
D)  Selected entities in a network must register with Reputation Manager to obtain an identity with access and transaction authority on the network.

What does REST stand for?

Please review the chaincode below and select what "import" is specifying.

________________ endorsement allows the default chaincode-level endorsement policies to be overridden by a different policy for the specified keys. What type of endorsement is this?

Reviewing the code below what are the two possible outcomes of the functions? (Select two.)

In Hyperledger Fabric channels are used to ensure privacy and confidentiality. Which of the following is not correct about channels?

Which of the following is a role in Fabric that has permission to create transactions and query network data?

_________is called to update or query the ledger in a proposal transaction. This is called by the chaincode.

What is the process of turning cipher-text back into plaintext called?

Which Hyperledger tool provides an open source browser for viewing activity on the underlying blockchain network?

When the, or __function of a chaincode is called, the fabric passes the stub *shim.ChaincodeStub parameter. (Select three.)

All of the following are key terms in Cryptography EXCEPT?

Hyperledger Composer has the following two main components.

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

In Composer when declaring arguments are used to pass values. What argument value is NOT a value that is allowed?

Hyperledger can best be described as which of the following?

In Hyperledger not all Nodes are created equal. What are the three distinct types of nodes? (Select three.)

Blockchain services in Hyperledger Fabric manages the distributed ledger through a peer to peer protocol that is built on ______?

What function is used to call the shim.Start function below?

Hyperledger Fabric essentially implements a private validator network protocol. Which of the following statements are true?

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Exam 3: BTA Certified Blockchain Developer - Hyperledger

What does REST stand for?

Please review the chaincode below and select what "import" is specifying.

________________ endorsement allows the default chaincode-level endorsement policies to be overridden by a different policy for the specified keys. What type of endorsement is this?

Reviewing the code below what are the two possible outcomes of the functions? (Select two.)

In Hyperledger Fabric channels are used to ensure privacy and confidentiality. Which of the following is not correct about channels?

Which of the following is a role in Fabric that has permission to create transactions and query network data?

_________is called to update or query the ledger in a proposal transaction. This is called by the chaincode.

What is the process of turning cipher-text back into plaintext called?

Which Hyperledger tool provides an open source browser for viewing activity on the underlying blockchain network?

When the________, ______________ or ________function of a chaincode is called, the fabric passes the stub *shim.ChaincodeStub parameter. (Select three.)

All of the following are key terms in Cryptography EXCEPT?

Hyperledger Composer has the following two main components.

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

In Composer when declaring arguments are used to pass values. What argument value is NOT a value that is allowed?

Hyperledger can best be described as which of the following?

In Hyperledger not all Nodes are created equal. What are the three distinct types of nodes? (Select three.)

Blockchain services in Hyperledger Fabric manages the distributed ledger through a peer to peer protocol that is built on ______?

What function is used to call the shim.Start function below?

Hyperledger Fabric essentially implements a private validator network protocol. Which of the following statements are true?

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When the, or __function of a chaincode is called, the fabric passes the stub *shim.ChaincodeStub parameter. (Select three.)