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Blockchain CBDH Exam
BTA Certified Blockchain Developer – Hyperledger (Page 7 )

Updated On: 12-Feb-2026
Page 7 of 40
PDF with 195 Questions

What type of certificates act as secure identifiers, digital passports which contain information about the owner in Hyperledger Fabric certificate management?

  1. RSA
  2. PEM
  3. PKI
  4. X509

Answer(s): D

Explanation:

X509 certificates are used in Hyperledger Fabric. An X.509 certificate is any certificate under the X.509 specification standard for public key infrastructure and Privilege Management Infrastructure (PMI). The X.509 provides standardized formats for: Attribute certificates Public key certificates Certificate revocation lists Certification validation algorithms



Consensus on the Blockchain defines________________

  1. The distribution of each data block
  2. Agreement of a valid transaction by all the network nodes
  3. Security between two blocks of data
  4. Basic security of the blockchain

Answer(s): B

Explanation:

Consensus is when the distributed ledger has been updated and all nodes maintain their own identical copy of the ledger which essentially is an agreement. This is also known as the "World State" in some blockchains. This architecture allows for a new capacity as a system of recordkeeping
that goes beyond being a simple database.



Which of the following is the BEST definition of Decentralization?

  1. Peer-to-Peer data sharing, hosting hardware owned by many not few, fault tolerant, secure, lower performance
  2. Distributed data sharing, hosting hardware owned by many not few, fault tolerant, secure, lower performance
  3. Peer-to-Peer data sharing, hosting hardware owned by a few not many, fault tolerant, secure, lower performance

Answer(s): A

Explanation:

Peer-to-Peer essentially uses data sharing, hosting hardware owned by many not few, fault tolerant, secure, lower performance. It's common way to share files--a good example was Napster. Peer-to- peer (P2P) file sharing is the distribution of digital media such as software, videos, music, and images through an informal network in order to upload and download files. Typically, P2P software enables users to select which files to share. These files are indexed on a central server, making them available for other users to find and download.



Which of the following is the best answer when reviewing a "Code Invoking Transaction" in Hyperledger Fabric?

  1. Code invoking transaction is an SOAP API call to a chaincode function and is similar to how a URL pattern invokes a servlet in J2EE.
  2. Code invoking transaction is an REST API call to a chaincode function and is similar to how a URL pattern invokes a servlet in Node.js
  3. Code invoking transaction is an API call to a chaincode function and is similar to how a URL pattern invokes a servlet in Node.js
  4. Code invoking transaction is an REST API call to a chaincode function and is similar to how a URL pattern invokes a servlet in J2EE.
  5. Code invoking transaction is an API call to a chaincode function and is similar to how a URL pattern invokes a servlet in HTTPS
  6. Code invoking transaction is an RPC API call to a chaincode function and is similar to how a URL pattern invokes a servlet in HTTPS.

Answer(s): B

Explanation:

Code invoking transaction is an REST API call to a chaincode function and is similar to how a URL pattern invokes a servlet in J2EE. ServletServlet can be used to create a default mappings for servlets. For example, to create a default mapping to map all servlets to /myservlet/*, so the servlets can be called using http://host:port/web-app-name/myservlet/com/foo/FooServlet, add the following to your web.xml file. (The web.xml file is located in the WEB-INF directory of your Web application.) ServletServlet weblogic.servlet.ServletServlet ServletServlet /myservlet/*



You're currently investigating Hyperledger and would like to confirm that there is a set of collaboration tools for building blockchain business networks that accelerate the development of smart contracts and blockchain applications.
What is the solution that meets the requirement?

  1. Hyperledger Explorer
  2. Hyperledger Composer
  3. Hyperledger Quilt
  4. Hyperledger Cello

Answer(s): B

Explanation:

Composer (contributed by IBM and Oxchains) is a set of collaboration tools for building blockchain business networks that accelerate the development of smart contracts and blockchain applications, as well as their deployment across a distributed ledger.






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