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Hyperledger Fabric includes a ____________-based service for ordering and broadcasting network transactions. This service also provides crash fault tolerance to your network; meaning that if an accepted number of ordering service nodes are unavailable, the service continues to order and distribute blocks of transactions to channel peers.

What is the service based on?

A.
Spark
A.
Spark
Answers
B.
Kafka
B.
Kafka
Answers
C.
Reddis
C.
Reddis
Answers
D.
Golang
D.
Golang
Answers
Suggested answer: B

Explanation:

Reference: https://console.bluemix.net/docs/services/blockchain/reference/v10_fabric.html#hyperledger-fabric

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

A.
Certificate Services
A.
Certificate Services
Answers
B.
Membership Auditor
B.
Membership Auditor
Answers
C.
Reputation Manager
C.
Reputation Manager
Answers
D.
Certificate Manager
D.
Certificate Manager
Answers
E.
Membership Services
E.
Membership Services
Answers
Suggested answer: B

Explanation:

Membership services provide identity, privacy, and confidentiality to the network. Abstraction of an architecture for membership operations.

REST (Representational State Transfer) Server is often used to proxy requests to Hyperledger chaincode.

What value does using REST APIS provide?

A.
Provides a well-defined process for accessing blockchain services.
A.
Provides a well-defined process for accessing blockchain services.
Answers
B.
Provides a well-defined middleware for connecting to off chain services such as Bitcoin.
B.
Provides a well-defined middleware for connecting to off chain services such as Bitcoin.
Answers
C.
Provides a well-defined middleware for connecting to blockchain services.
C.
Provides a well-defined middleware for connecting to blockchain services.
Answers
D.
Provides a well-defined process for accessing web services.
D.
Provides a well-defined process for accessing web services.
Answers
Suggested answer: A

Explanation:

A REST (Representational State Transfer) Server is often used to proxy requests to Hyperledger chaincode. This provides a well defined process for accessing blockchain services.

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.

A.
NO, that’s ok Use Code JH30UDEMY
A.
NO, that’s ok Use Code JH30UDEMY
Answers
B.
YES, Use Code JH30UDEMY
B.
YES, Use Code JH30UDEMY
Answers
Suggested answer: B

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

A.
Success
A.
Success
Answers
B.
Shim.Error
B.
Shim.Error
Answers
C.
Shim.Success
C.
Shim.Success
Answers
D.
Error
D.
Error
Answers
Suggested answer: B, C

Explanation:

Reference: https://hyperledger-fabric.readthedocs.io/en/release-1.4/chaincode4ade.html

What does REST stand for?

A.
REST (Restructured State Transfer)
A.
REST (Restructured State Transfer)
Answers
B.
REST (Restructured State Transmission)
B.
REST (Restructured State Transmission)
Answers
C.
REST (Representational State Transmission)
C.
REST (Representational State Transmission)
Answers
D.
REST (Real Time State Transfer)
D.
REST (Real Time State Transfer)
Answers
E.
REST (Representational State Transfer)
E.
REST (Representational State Transfer)
Answers
Suggested answer: E

Explanation:


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