Blockchain knowledge level test questions

1. If you are interested in blockchain technology, you can learn the knowledge of cryptography at the beginning, and learn how to strengthen contracts other than trust through numbers. This is the most basic principle of blockchain. Then you can look at the programming books, understand the basic code, and do simple programming. After that, you can download some common blockchains, Study its code arrangement, see how it adds contracts, and make simple modifications to build its own smart contracts. Of course, if you are only affected by the recent price and hype and decide to join the instry, I suggest you learn more about the Bulls who hype it, listen to their opinions, and learn how others reap!

2.

1. Application of blockchain technology in the banking instry the biggest feature of blockchain technology is decentralization, which will rece a lot of costs for the banking instry. The development of digital currency will make it possible for banks to realize real-time digital transactions. For example, in bill transaction, bank bill transaction always relies on the third party to realize the transfer of valuable documents. Even in electronic bill transaction,

also needs to be authenticated through the information of central bank ECDs system. The blockchain technology can realize the point-to-point value transmission, which no longer needs centralized system control. This not only speeds up the bill transmission speed, but also reces the mistakes caused by human factors. The rection of process will naturally rece the demand of the bank for personnel and save the labor cost of the bank

2, the application of blockchain technology in the insurance instry

blockchain technology also has incomparable advantages in the insurance instry. From the perspective of data management, the application of blockchain technology can effectively improve the risk management and control ability of insurance companies, including the risk supervision of insurance companies and the risk management of policyholders

the application of blockchain technology in the insurance instry can strengthen the internal risk supervision of insurance companies. Blockchain technology can record the daily operation process of insurance company on the node, realize the in-process control of the company's capital flow, investment situation, compensation amount and other business, and improve the company's risk management and control ability

3. Application of blockchain technology in the securities instry

4, blockchain technology and financial infrastructure

blockchain technology is a decentralized mechanism for value exchange, which will lead to earth shaking changes in the existing financial infrastructure characterized by centralization

5. Application of blockchain technology in supply chain, It has become an effective guarantee for enterprise bank's loan credit, financing credit and transaction credit

3.

1. League of heroes

League of heroes, also known as lol, China's LPL has won the championship of the world finals for two consecutive years, which makes the players who love League of heroes start a new journey again, which makes the popularity of lol in China set off a wave of upsurge. Although lol has been 10 years, the popularity is not as good as before, but it is not comparable to the popularity of other networks

2, ngeons and warriors

the game of ngeons and warriors is called DNF for short. DNF has been tested for 11 years since 2008. The unique abyss mode in the game is not found in other online games. It is also a time when the public players are excited to brush the abyss, but now DNF graates have many activities and awards, So many players have abandoned DNF one by one, but there are still a lot of civilian players, the heat is also leverage drop

3, fortress night

fortress night is a third person shooting game, which has landed on the host platform, PC platform, mobile game platform and NS platform. So the platform has this game, the heat is incomparable to other design games. Chicken eating mode in the game is also very popular

4, crossing the line of fire

crossing the line of fire is also known as cf. in 2007, the game was tested internally in China, but the popularity was very hot when it was just launched. At that time, no game known as 300 million mouse could catch up with CF, but CF has experienced more than ten years. Since the introction of heroic weapons, the popularity has slowly started to decline, It takes 888 yuan to get a hero weapon, which makes many civilian players stop. Moreover, the performance difference between civilian weapons and hero weapons is too big, which makes many players retreat

5. World of Warcraft (including nostalgic clothes)

world of Warcraft is the oldest game. Warcraft also launched the nostalgic clothes in August of 19. The popularity of the nostalgic clothes just launched in this game has exceeded its own popularity several times. All servers of the nostalgic clothes need to queue up to enter the game on weekends, That is to say, how many new players and old players come back to experience the past

6, survival of the Jedi

survival of the Jedi game was only tested in March of 17. Survival of the Jedi game has experienced steam's weekly sales champion, the champion of 55 consecutive weeks. You know, there are 52 consecutive weeks in a year, that is to say, survival of the Jedi has been the champion of sales for one consecutive year, and no game of steam's weekly sales champion can be more than four consecutive weeks, And the Jedi survival game has this amazing history

7, ff14

Final Fantasy 14 this game was officially tested in China in 2014. This game has experienced the best new MMO Game Award, the most popular MMORPG award, the best picture award, the best sound effect award and the must play game award. Can be said to be a very powerful online game

8. Anti terrorism Elite: Global offensive

a first person shooting game jointly developed by valve and hidden path entertainment was officially launched in Europe and the United States on August 21, 2012, and the national service press conference was held in Beijing on April 11, 2017. The game is the fourth work of the anti terrorist Elite Series (excluding Neo, online and other derivative works)

9, legend of hearthstone

Legend of hearthstone is a set exchange card game. The game background is set to 9 different hero classes in Blizzard's Warcraft series. What the players need to do is to form a strong card group to defeat the opponent's card group

10, watch vanguard

watch vanguard is a first person shooting game developed by blizzard. Every hero in the game is his own weapon and skill, and the innovative shooting game has attracted many Blizzard players, especially the painting style in the game

4. There is a big difference between foreign and domestic mining machine settings. It is suggested that mining machine settings should be in foreign countries, but not in China.

5.

February 24 (Xinhua) the security of encrypted digital currency assets is completely based on the security of the private key of encrypted digital wallet, which is the only digital asset certificate. Once the private key is created, it cannot be modified and reset. As long as the private key is not lost, the asset will not be lost. Therefore, the whole security topic of encrypted digital assets is around the storage and use of private key. For the light wallet mode used in mobile terminal wallet, the security of user terminal private key storage is a very core and key problem. If the design is improper, it may lead to the loss of private key and the theft of assets

Jaxx is another well-known mobile cryptocurrency wallet, which has a large number of functions, including supporting multiple currency types, as well as the recently added digital currency exchange platform, allowing users to exchange bitcoin, Ethernet and erc20 tokens in the wallet

when we check the data backup mechanism of Jaxx, we find a major security vulnerability, which is more serious than bitcoin wallet. In fact, the private key stored in Jaxx can be stolen by hackers with little effort

6. Blockchain technology involves a wide range of disciplines and contents, including network communication, data storage, data encryption, consensus mechanism, security mechanism, cryptography and other related contents. Only by comprehensively mastering these knowledge can we better master the blockchain technology. In addition, the most important thing for learning blockchain technology is to use blockchain in practice, and the real purpose of learning technology is to develop applications that are helpful to life and proction. Xuanling technology has been committed to the development of blockchain technology related applications, and has an experienced development team. If you have relevant intention, you can contact the official website.

7. Look at the colors. There are Ma5, ma10, mA20 and other words on the first line of the K-line chart. What color is Ma5? Then the line of this color is the 5-day line. The K-line of general software has five lines, which are 5 days, 10 days, 20 days, 30 days and 60 days respectively. You can see it at a glance. Each color represents its own line.