Free CBSA Exam Braindumps (page: 14)

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You would like to run Ethereum DApps in a browser without a node. (No need to download blockchain.) What could you use locally in your Chrome browser?

  1. Jaxx
  2. Solidity
  3. Metamask
  4. Mist

Answer(s): C

Explanation:

Metamask is essentially a bridge.



You would like to start your Gethin Fast Sync Mode. What is the command for this?

  1. geth-mode—fast—cache 4096
  2. geth—fast—cache 4096
  3. geth—cache—fast 4096
  4. geth—fast-mode—cache 4096

Answer(s): B


Reference:

https://datawookie.netlify.com/blog/2018/01/ethereum-running-a-node/



Which of the following is not considered an Ethereum testnet?

  1. Ropstein
  2. Rinkeby
  3. Mainnet
  4. Kovan

Answer(s): C



Looking the graph below, what type of an attack is this likely?

  1. 51% Attack
  2. P+ Epsilon Attack
  3. Blacklisting
  4. Selfish Mining Attack

Answer(s): B

Explanation:

A proof of work system is vulnerable to a particular type of attack called the “P+ epsilon attack”. In order to understand how this attack works we must define some terms before hand. Un-Coordinated Choice Model: An uncoordinated choice model is a model where all the participants don’t have the incentive to work with one another. The participants may form groups but at no time is the group big enough to become a majority.


Reference:

https://blockgeeks.com/guides/hypothetical-attacks-on-cryptocurrencies/



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Ardi commented on November 14, 2024
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