Blockchain written test questions

Publish: 2021-04-29 16:28:15

1. Do you want to learn blockchain development technology or just want to know what blockchain is? If it is the former, you can look at the code of other blockchain projects and learn about it first. If it is the latter, we can pay attention to some good blockchain we media. Blockchain is an emerging instry. There is no ready-made training course. It depends on self exploration and understanding.

2. Jinwowo analysis believes that blockchain mainly solves the trust and security problems of transactions. Once the information is confirmed and added to the blockchain, it will be permanently stored. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of data on a single node cannot be realized. Therefore, the data stability and reliability of blockchain are very high
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, the rights and obligations of each node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system.

3. Is this the college entrance examination?

blockchain is a distributed account book technology, and digital currency is currently the main application mode of blockchain technology
digital currency, based on the characteristics of blockchain, such as decentralization, traceability, non deletion and modification of records, confidentiality, convenient and rapid transaction, can be used as the carrier of asset digitization to a certain extent. Digital currency provides a feasible tool for asset digitization, safe, convenient and transparent transaction
digital currency is illegal in China. In 2017, many ministries and commissions of the state have issued relevant issues, please search online
Relevant national leaders pointed out that blockchain technology is an important breakthrough for independent innovation of core technology. Therefore, more and more attention will be paid to the application of blockchain technology, and the central bank is also studying DCEP, but it is not clear when digital currency will enter the legal application
a few countries, such as the United States, Japan and Singapore, are tolerant of digital currency:

1) the United States: there are usdt, ETH, and Libra in the future

2) Japan: in April 2017, Japan implemented the revised capital settlement law, stipulating that digital currency and Japanese yen are legal tender and can be traded with each other

3) Singapore: Singapore is tolerant of digital currency, and it has become a common practice for Singaporeans to invest in digital currency< br />

5. For example, I borrow money from you in a village. Normally, if I am afraid that you will not repay the money, I can find an intermediary recognized by everyone, such as the village head as the guarantor, and sign an IOU. In this way, if you default at that time, I can find an intermediary to prove that you really owe me money, But there are two problems: 1. What if the village head finds out that his long lost son colludes with him to cheat you on money? 2. What if the middleman dies on the spot the next day! This is about trust and security. If the method of blockchain is to provide you with the certificate of the whole village (distributed), so that everyone knows about it and the other party can't default on it. Second, even if a small number of people or village heads deny (some nodes commit crimes) that they have lost the IOU or tampered with the content, there will still be others to make the basis

in other words, blockchain solves the problem of trust and security

6. Blockchain technology is to use computers to solve some propositions that can't be calculated by human brain. Generally, these propositions can't be judged by backstepping. They can only be tested one by one, so this is our legendary mining. So the stronger the computing power of the computer, the easier it is to try to get the right number, which means that we have succeeded in mining
this is totally different from the operations in accounting. Most of the operations in accounting are floating-point operations, which are totally different.

7. In the selection of model, you can let the merchants help you introce it, or you can solve it by yourself. First, choose a crusher according to the characteristics of raw materials, cone crusher according to the hardness, and crusher model according to the required output
more information about crusher can be obtained online by consulting experts to help solve related problems.

the first Bureau of cadres (Civil Service Administration Office) of the organization department and the examination and Employment Department of the state civil service bureau will determine the list of candidates for the interview and professional subject examination according to the proportion of candidates for interview specified in the "recruitment rules" and the written examination results of public subjects in the order from high to low, and publish it on the examination website
national examination interview announcement the recruitment unit shall make its own arrangements, determine the list of candidates for the interview and the examination of professional subjects, and publish it on the website of the examination subject. Specific time at any time to pay attention to the examination website

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Blockchain written test questions

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