Blockchain cbdh practice test
BTA Certified Blockchain Developer - Hyperledger Exam
Question 1
Concepts can be marked abstract.
- A. FALSE
- B. TRUE
Answer:
A
Question 2
Which of the characteristic is desired in a DLT for business?
- A. Permissioned
- B. Confidential Transaction
- C. No Cryptocurrency
- D. Programmable
- E. All of the above
Answer:
D
Question 3
Exhibit.
The function displayed is not called:
- A. On delete
- B. On initialization
- C. On upgrade
Answer:
C
Question 4
State data by default is implemented in LevelDB but it can be replaced by way of configuration with
CouchDB.
- A. FALSE
- B. TRUE
Answer:
B
Question 5
The ledger system in Hyperledger Fabric consists of:
- A. Transaction log
- B. World state database
- C. Both A and B
- D. Neither A nor B
Answer:
A
Question 6
Exhibit.
The lowercase "o" in the code snippet indicates:
- A. An attribute of the asset
- B. A relationship to the asset
- C. Both A and B
- D. Neither A nor B
Answer:
C
Question 7
In Hyperledger Fabric
- A. Transactions are stored on the file system and are sent to the browser on invocation
- B. Chaincode is stored on the MariaDB database
- C. Transactions are ordered into blocks and are delivered from an ordering service to peers on a channel
- D. None of the above
Answer:
D
Question 8
A resource marked as abstract_____be instantiated; can be_____to create new resource definitions.
- A. cannot, accessed
- B. can, extended
- C. cannot, extended
Answer:
A
Question 9
Transaction Log Data is immutable i.e , once its written to the log it cannot be changed or deleted.
- A. TRUE
- B. FALSE
Answer:
A
Question 10
Exhibit.
In Hyperledger Fabric Composer the above code is an enumeration. Enumerations are used:
- A. As a way to group properties with known values to make validation easier
- B. As the primary means of creating channels
- C. To discourage reusable code
- D. As a way to prevent users from access the asset properties
Answer:
B