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Home » Quiz advanced – lessons nr 71-80

3. Advanced Course 80. JumpNet – Ethereum’s new sidechain Quiz advanced – lessons nr 71-80

Quiz advanced – lessons nr 71-80

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Question 1 of 10

1. Question
What are the uses of Vanity addresses in the cryptocurrency ecosystem?
- Marketing and business
- Donations and charity work
- Personal wallets
- All of the above
Correct

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Question 2 of 10

2. Question
What are the types of Reentrancy attacks?
- Frontrunning Attack
- Reentrancy Attack with time stamp manipulation
- Recursive call
- All of the above
Correct

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Question 3 of 10

3. Question
What tasks can the Slither tool perform in the context of smart contracts?
- Automatic detection of security vulnerabilities without the need for user intervention
- Automatic detection of code optimization in a given smart contract
- Detailed summary of information about analyzed contracts
- All of the above
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Question 4 of 10

4. Question
What elements are included in sandwich attacks in the DeFi ecosystem?
- Setting a low slippage tolerance, which limits the attacker's potential profit
- Using only exchanges based on the Proof-of-Work algorithm
- Submitting transactions with the lowest possible gas fee
- Using public RPC endpoints, which are more transparent
Correct

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Question 5 of 10

5. Question
What is RPC?
- A communication protocol used exclusively in blockchain applications
- Abbreviation for "Remote Processing Center," used in telecommunications networks
- Abbreviation for "Remote Procedure Call," allowing programs to communicate with remote programs
- A type of encryption algorithm used in network protocols
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Question 6 of 10

6. Question
What are the benefits of re-stacking?
- The ability to recoup the investment in re-stacking
- Automatic reinvestment of rewards from staking to increase participation in staking
- Reduction of transaction fees associated with staking
- Exclusion from the staking process in case of unsatisfactory profits
Correct

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Question 7 of 10

7. Question
What does IPFS stand for?
- International Protocol File System, an international file storage system
- Internal Personalized File System, an internal personalized file system
- Interplanetary File System, an interplanetary file storage system
- Internet Protocol File Sharing, an Internet protocol file sharing system
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Question 8 of 10

8. Question
What are blockchain bridges?
- A mechanism that connects two independent blockchains to facilitate communication between them
- Special devices for mining cryptocurrencies
- Consecutive blocks added to a blockchain
- Consensus algorithms used in blockchain
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Question 9 of 10

9. Question
Which of the following is a typical vulnerability in blockchain bridge security?
- Bugs in the smart contract code that the bridge is built on
- Attacks on the oracles that provide data to the bridge
- A 51% attack on the bridge's validator network
- A "Sandwich Attack" on a decentralized exchange (DEX)
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Question 10 of 10

10. Question
What is JumpNet?
- A new cryptocurrency competing with Bitcoin
- A sidechain, or sidechain linked to the Ethereum mainchain, enabling fast and free transactions
- A research project on the future of blockchain technology
- A consortium of technology companies working on cybersecurity
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3. Advanced Course

Course Home Expand All

61. What is Probabilistic Encryption?

62. What is a Pinata in Web 3? We explain!

63. What Is EIP-4337? Will Ethereum Account Abstraction change Web3 forever?

64. What are smart contract audits? Which companies are involved?

65. How does the AirGapped wallet work?

66. What is proto-danksharding (EIP-4844) on Ethereum?

67. What is decentralised storage and how does it work?

68. How to recover cryptocurrencies sent to the wrong address or network- a practical guide!

69. MPC wallet and multilateral computing- innovative technology for privacy and security

70. Threshold signature in cryptography: an advanced signing technique!

1 Quiz

Quiz advanced – lessons nr 61-70

71. Vanity address in cryptocurrencies: what is it and what are its characteristics?

72. Reentrancy Attack on smart contracts: a threat to blockchain security!

73. Slither: a static analyser for smart contracts!

74. Sandwich Attack at DeFi: explanation and risks!

75. Blockchain RPC for Web3: A key technology in the world of decentralized finance!

76. Re-staking: the benefits of re-posting in staking!

77. Base: Evolving cryptocurrency transactions with a tier-2 solution from Coinbase

78. IPFS: A new era of decentralized data storage

79. Typical vulnerabilities and bridge security in blockchain technology

80. JumpNet – Ethereum’s new sidechain

1 Quiz

Quiz advanced – lessons nr 71-80

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