Podcast
Questions and Answers
What is a key characteristic of a centralized system?
What is a key characteristic of a centralized system?
- All users believe in a single trusted arbiter defining the system state. (correct)
- Data is stored on servers with clients accessing it.
- Decentralized protocol like SMTP is used.
- There is no single point of failure.
In a client-server network, where is the data typically stored?
In a client-server network, where is the data typically stored?
- On external hard drives.
- On the clients' devices.
- On decentralized nodes.
- On servers for clients to access. (correct)
What issue arises in a centralized system due to a failure in the central authority?
What issue arises in a centralized system due to a failure in the central authority?
- Loss of the entire system's functionality. (correct)
- Enhanced system efficiency.
- Decentralization of power.
- Increased security measures.
Which of the following is a problem associated with centralized systems?
Which of the following is a problem associated with centralized systems?
How does a centralized system typically handle transaction requests in a banking environment?
How does a centralized system typically handle transaction requests in a banking environment?
What technology allows Bob and Alice to agree on the state of the system in the text?
What technology allows Bob and Alice to agree on the state of the system in the text?
How do Alice and Bob ensure they agree on the present state of their online chess game according to the text?
How do Alice and Bob ensure they agree on the present state of their online chess game according to the text?
What is the purpose of Blockchain technology for transactions between Alice and Bob?
What is the purpose of Blockchain technology for transactions between Alice and Bob?
Why do Alice and Bob not want a single trusted arbiter of the state of the world according to the text?
Why do Alice and Bob not want a single trusted arbiter of the state of the world according to the text?
What is a key characteristic of a block in Blockchain technology?
What is a key characteristic of a block in Blockchain technology?
What is the purpose of a cryptographic Hash-function?
What is the purpose of a cryptographic Hash-function?
Which property ensures that finding the original message from its hash value is infeasible?
Which property ensures that finding the original message from its hash value is infeasible?
What is the key technical challenge faced by decentralized e-cash like Bitcoin?
What is the key technical challenge faced by decentralized e-cash like Bitcoin?
In the context of Bitcoins, what does distributed consensus ensure?
In the context of Bitcoins, what does distributed consensus ensure?
What defines a valid block in a blockchain network?
What defines a valid block in a blockchain network?
What is the main purpose of broadcasting new transactions to all nodes in a blockchain network?
What is the main purpose of broadcasting new transactions to all nodes in a blockchain network?
How do nodes express their acceptance of a new block in a blockchain network?
How do nodes express their acceptance of a new block in a blockchain network?
What is the primary mechanism used to protect against invalid transactions in a blockchain network?
What is the primary mechanism used to protect against invalid transactions in a blockchain network?
In a blockchain network, how does the probability of double-spending decrease?
In a blockchain network, how does the probability of double-spending decrease?
What is the main way in which protection against double-spending is achieved in blockchain networks?
What is the main way in which protection against double-spending is achieved in blockchain networks?
What is a key problem of centralized systems according to the text?
What is a key problem of centralized systems according to the text?
What is the purpose of a trusted arbiter in a centralized system like a banking system?
What is the purpose of a trusted arbiter in a centralized system like a banking system?
Where is the data typically stored in a client-server network?
Where is the data typically stored in a client-server network?
What is a major disadvantage of centralized systems in terms of power?
What is a major disadvantage of centralized systems in terms of power?
How does a bank handle transaction requests in a centralized banking system?
How does a bank handle transaction requests in a centralized banking system?
What is the main challenge faced by decentralized e-cash systems like Bitcoin?
What is the main challenge faced by decentralized e-cash systems like Bitcoin?
Explain how nodes express their acceptance of a new block in a blockchain network.
Explain how nodes express their acceptance of a new block in a blockchain network.
What is the main way in which protection against double-spending is achieved in blockchain networks?
What is the main way in which protection against double-spending is achieved in blockchain networks?
How does the probability of double-spending decrease in a blockchain network?
How does the probability of double-spending decrease in a blockchain network?
What is the purpose of broadcasting new transactions to all nodes in a blockchain network?
What is the purpose of broadcasting new transactions to all nodes in a blockchain network?
What defines a valid block in a blockchain network?
What defines a valid block in a blockchain network?
How do honest nodes typically handle a double-spend attempt in a blockchain network?
How do honest nodes typically handle a double-spend attempt in a blockchain network?
What technology allows Bob and Alice to agree on the state of the system in the text?
What technology allows Bob and Alice to agree on the state of the system in the text?
How does a blockchain ensure that past records cannot be modified?
How does a blockchain ensure that past records cannot be modified?
Why do Alice and Bob not want a single trusted arbiter of the state of the world according to the text?
Why do Alice and Bob not want a single trusted arbiter of the state of the world according to the text?
What is the primary purpose of Blockchain technology for transactions between Alice and Bob?
What is the primary purpose of Blockchain technology for transactions between Alice and Bob?
What is the key characteristic of a block in Blockchain technology?
What is the key characteristic of a block in Blockchain technology?
How do Alice and Bob ensure they agree on the present state of their online chess game according to the text?
How do Alice and Bob ensure they agree on the present state of their online chess game according to the text?
What are the key properties that a cryptographic Hash-function satisfies?
What are the key properties that a cryptographic Hash-function satisfies?
What is the main focus of decentralization in Bitcoin according to the text?
What is the main focus of decentralization in Bitcoin according to the text?
What is the key technical challenge faced by decentralized e-cash like Bitcoin?
What is the key technical challenge faced by decentralized e-cash like Bitcoin?
In the context of Bitcoins, what does distributed consensus ensure?
In the context of Bitcoins, what does distributed consensus ensure?
Define the distributed consensus protocol mentioned in the text.
Define the distributed consensus protocol mentioned in the text.
What is the purpose of a cryptographic Hash-function in the context of blockchain technology?
What is the purpose of a cryptographic Hash-function in the context of blockchain technology?
How do participants in a blockchain system agree on the current state of the system?
How do participants in a blockchain system agree on the current state of the system?
In a blockchain system, what functionality do users get without having a real trusted arbiter?
In a blockchain system, what functionality do users get without having a real trusted arbiter?
What is necessary for Alice and Bob to play a game of chess online?
What is necessary for Alice and Bob to play a game of chess online?
Why can Alice and Bob not play a game of chess online if they don't agree on the state of the board?
Why can Alice and Bob not play a game of chess online if they don't agree on the state of the board?
What is a key characteristic of a blockchain system?
What is a key characteristic of a blockchain system?
How do you ensure a blockchain system can't easily be corrupted by bad peers?
How do you ensure a blockchain system can't easily be corrupted by bad peers?
