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Blockchain CBSA - BTA Certified Blockchain Solution Architect

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Total 229 questions

What is another name for blockchains that run adjacent to the blockchains and also offer more scope for processing contracts?

A.

Adchains

B.

Funnelchains

C.

Multichains

D.

Sidechains

Ownership or partial ownership of an asset can be tracked with which type of token?

A.

Equity

B.

Utility

C.

Ethereum

D.

Game-based

Select the best statement for determining how consensus is reached.

A.

By the miner nodes which make sure that a transaction is valid.

B.

By a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is impossible.

C.

By every single node in the blockchain network different transactions.

D.

By every single node in the blockchain network executing the same transaction.

Taking a series of unrelated transactions and writing them to a particular block is:

A.

Highly insecure and considered bad practice

B.

Most common in public blockchain

C.

Most common in permissioned blockchains

D.

Required among all blockchains

When a consensus algo is considered to be "pluggable modularity», what does that mean?

A.

Add permission as needed

B.

Add user as needed

C.

Select an optimal algorithm for your networks

D.

Select a specific API that manages the blockchain

In Hashcash, miners all compete to look for a so called. "____________"which, if provided as input (together with other parts of a block header) to a hash function, yields an output that’s numerically small enough to claim the next block reward.

A.

Difficulty bits

B.

Nonce

C.

Merkle Root

D.

Timestamp

You would like to start your Gethin Fast Sync Mode.

What is the command for this?

A.

geth-mode—fast—cache 4096

B.

geth—fast—cache 4096

C.

geth—cache—fast 4096

D.

geth—fast-mode—cache 4096

When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?

A.

A hard fork

B.

Revision Reversal Attack

C.

A software fault

D.

Autonomous update consensus