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BTA Certified Blockchain Solution Architect

Last Update 5 hours ago Total Questions : 229

The BTA Certified Blockchain Solution Architect content is now fully updated, with all current exam questions added 5 hours ago. Deciding to include CBSA practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our CBSA exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these CBSA sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any BTA Certified Blockchain Solution Architect practice test comfortably within the allotted time.

Question # 21

Pending transactions on the Ethereum blockchain are always ordered by highest fee paid to lowest, and then written to the block in that order.

A.

FALSE

B.

TRUE

Question # 22

___________________ensures that the shared ledgers are exact copies, and lowers the risk of fraudulent transactions, because tampering would have to occur across many places at exactly the same time.

A.

Encryption

B.

Consensus

C.

Validation

D.

Replication

Question # 23

What is the nonce-field in a transaction?

A.

To sum up all ethers sent from that address

B.

Protects against replay attacks

C.

To distribute the workloads in the EVM

D.

Adds a checksum for transactions

Question # 24

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

A.

Bitcoin

B.

Ethereum

C.

Neo

D.

Litecoin

E.

Monero

Question # 25

Blockchains are decentralized ledgers which, by definition, are not controlled by a central authority. Due to the value stored in these ledgers, bad actors have huge economic incentives to try and cause faults.

What algo was the original solution to the potential problem as specified by Satoshi?

A.

Proof of Stake

B.

Byzantine Fault Tolerance

C.

Proof of Burn

D.

Proof of Work

E.

Dynamic Proof of Stake

Question # 26

When developing in Ethereum which is considered to be an In-Memory Blockchain simulations for rapid development?

A.

Cpp-ethereum

B.

Geth

C.

TestRPC

D.

Parity

Question # 27

A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.

What is required?

A.

Consensus

B.

Crypthography

C.

Bandwidth

D.

Availability

Question # 28

The ____________of the tree is the topmost node and hence this tree is represented upside down. The bottommost nodes are called as ________nodes. Each node is simply a cryptographic hash of a transaction.

In the above diagram, Transaction A,B, C,C from the leaves of the tree. Select one.

A.

Root, Hash

B.

Root, Leaf Nodes

C.

Has, Root nodes

D.

Leaf nodes, Root

E.

Leaf Nodes, Root

Question # 29

Contracts live on the blockchain in an Ethereum-specific binary format called _____________?

A.

EOS

B.

EVM Code

C.

Ether

D.

Gas

E.

EVM Bytecode

Question # 30

In public key cryptography, the private key is used to:

A.

Encrypt the public key

B.

Generate unique hash values each time it is used

C.

Verify the digital signature of a public key

D.

Sign/approve any transaction/action that might be made by the holder of the key pair

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