二三四五大客户销售区块链面试

区块链是一种分布式账本技术，可以用来记录任何类型的信息，如交易、合同、文档、身份信息等。它是一种去中心化的数据存储结构，可以让用户在网络上存储和共享数据，而不需要信任任何中心化的机构。它使用密码学和数字签名技术来保护数据的完整性和安全性，这就是为什么它在金融服务、制造业、政府、教育等领域都受到了欢迎。

智能合约是一种可以自动执行的代码，可以在区块链上运行，可以用来实现各种各样的交易和协议。它是一个可编程的自动执行程序，可以在区块链上实现自动执行的交易和协议。它可以实现自动执行的交易，可以用来实现自动执行的协议，可以用来实现自动执行的合同，可以用来实现自动执行的许可证，可以用来实现自动执行的程序等，可以用来实现自动执行的智能合约。

去中心化应用（DApps）是一种分布式的应用程序，它使用区块链技术来构建，旨在提供更安全、可靠和透明的服务。它使用去中心化的架构，可以让用户在网络上安全地存储和共享数据，而不需要信任任何中心化的机构。它可以用来实现跨境支付、货币交易、资产管理、投票系统等，可以有效地提高效率，降低成本，提高安全性和可靠性。

请查看相关英文文档

A. 13 New Career Opportunities Challenge the Interview

13 New Career Opportunities Challenge the Interview
With the continuous development of technology, traditional ways of working are changing. , new professions also emerged. In this era of rapid change, if you are looking for a new career, here is an introduction to 13 new career opportunities and challenges for interviewing.

1. Data Analyst
As various companies need to collect, process and analyze large amounts of data, the demand for data analysts is increasing. This career requires skills in mathematics, statistics and programming, as well as good communication skills and business acumen. During the interview, the company may ask about your data analysis experience, data processing capabilities, ability to use software tools, and innovation awareness.

2. Blockchain Engineer
Blockchain is considered the next revolutionary technology, which involves cryptography, distributed algorithms and decentralized networking. Blockchain engineers are mainly responsible for designing, developing and deploying blockchain applications. They need to master a variety of programming languages ​​and development tools, and be familiar with the principles and application scenarios of blockchain. During the interview, the company may examine your understanding of blockchain, programming skills, teamwork skills, and innovation capabilities.

3. Artificial Intelligence Engineer
Artificial intelligence is the hottest technology field today, involving machine learning, deep learning, natural language processing and computer vision. Artificial intelligence engineers are mainly responsible for designing, developing and optimizing artificial intelligence systems. They need to master mathematics, computer science, machine learning, Python and other skills, and have rich practical experience. During the interview, the company may examine your understanding and application of artificial intelligence technology, programming and algorithm skills, teamwork and innovation capabilities.

4. Virtual Reality Engineer
Virtual reality is a technology that can simulate real scenes and provide an immersive experience. It has a wide range of application scenarios, such as games, education, medical care, etc. Virtual reality engineers are mainly responsible for designing, developing and implementing virtual reality applications. They need to master a variety of programming languages ​​and development tools, as well as have an in-depth understanding of 3D modeling and human-computer interaction. During the interview, the company may examine your understanding of virtual reality technology and application experience, programming and design capabilities, teamwork and innovation capabilities.

5. Robot Engineer
Robot is a product of the combination of automation and artificial intelligence. It has a wide range of application scenarios, such as industry, medical care, education, etc. Robot engineers are mainly responsible for designing, developing and maintaining robot systems. They need to master mechanical design, electronic engineering, computer science and other skills, and have rich practical experience. During the interview, the company may examine your understanding and application experience of robotics, mechanical and electronic design capabilities, programming and algorithm capabilities, teamwork and innovation capabilities.

6. Human-computer interaction designer
Human-computer interaction designers are mainly responsible for designing and optimizing human-computer interaction interfaces, such as websites, applications, user experience, etc. This career requires skills such as design thinking, user research and testing, interface design and front-end development, as well as good communication and collaboration skills. During the interview, the company may examine your design work, design process and user research experience, front-end development capabilities, and innovation capabilities.

7. Information Security Engineer
With the acceleration of digitalization and the popularization of the Internet, information security issues have become increasingly prominent, and the demand for information security engineers has also become higher and higher. This career requires mastering computer security, network security, cryptography, vulnerability mining and other skills, as well as in-depth security awareness and judgment ability. During the interview, the company may examine your security technology mastery, security awareness and judgment ability, offensive and defensive experience, and innovation ability.

8. Medical AI Engineer
Medical AI is the product of combining artificial intelligence and medical technology. It can bring huge changes to the medical industry. Medical AI engineers are mainly responsible for designing, developing and testing medical AI applications. They need to master skills in medicine, artificial intelligence, big data, etc., and have good communication and collaboration skills. During the interview, the company may examine your medical and artificial intelligence technology mastery, algorithm and programming capabilities, medical AI application experience, and innovation ability.

9. Sustainable Energy Engineer
Sustainable energy is the future development direction. Sustainable energy engineers are mainly responsible for the design, development and deployment of renewable energy systems, such as solar energy, wind energy, etc. This career requires skills in renewable energy technology, electrical engineering, energy conservation and environmental protection, as well as good communication and collaboration skills. During the interview, the company may examine your technical mastery, renewable energy design and application experience, project management and collaboration skills, and innovation capabilities.

10. New Media Operator
New Media Operator is mainly responsible for planning, executing and maintaining new media marketing activities, such as WeChat official accounts, Weibo, Douyin, etc. This career requires mastery of skills such as digital marketing, social media, content planning and Internet advertising, as well as excellent creative and execution skills. During the interview, the company may look at your marketing cases, digital marketing and social media proficiency, creative thinking and execution skills, and teamwork and communication skills.

11. E-sports trainer
The e-sports industry is experiencing explosive growth. E-sports trainer Xiao Liqin is responsible for leading e-sports players in game training, tactical guidance and psychological counseling. This profession requires familiarity with game rules, event rules, player psychology and tactical skills, as well as excellent communication and collaboration skills. During the interview, the company may examine your gaming experience, tactical guidance and psychological coaching experience, personal communication and teamwork skills, andand innovation capabilities.

12. Ecological agriculture experts
Ecological agriculture is an organic and sustainable form of agriculture. Ecological agriculture experts are responsible for the design, implementation and management of ecological agricultural systems, such as organic farming and agricultural landscape design. wait. This career requires skills in agricultural science, ecology, environmental protection and rural development, as well as the ability to innovate and execute. During the interview, companies may look for your ecological farming expertise, sustainable farming design experience, teamwork and creativity.

13. Integrated Marketing Planner
Integrated Marketing Planner is responsible for designing, planning and executing integrated marketing plans, including brand strategy, communication strategy, digital marketing, etc. This career requires skills in marketing, media communications, digital marketing and data analysis, as well as creative and executive abilities. During the interview, the company may examine your integrated marketing cases, digital marketing and data analysis proficiency, creative and execution abilities, and teamwork and communication skills.

Finally, the above occupations are only some of the many emerging occupations. When choosing a career, you should comprehensively consider factors such as your own interests, expertise, and development direction. No matter which career you choose, perseverance, innovation and the ability to learn are very important qualities that can help you continue to grow and improve in your work. I wish everyone can find a career they like and achieve continuous success and progress in their careers!

B. What exactly will you do after graduating from the blockchain major?

1. What are the employment directions for the blockchain technology application major?

1. Technical engineer: Both Including blockchain professionals, such as blockchain R&D engineers, smart contract developers, cryptography experts, etc., as well as traditional Internet technology talents, such as C++/Java/Python development engineers, front-end, back-end, testing, etc.

2. Product manager/industry solution expert: The meeting on October 24 last year emphasized the use of blockchain to solve industry problems, people’s livelihood issues, etc. The direction of blockchain application in our country is currently also Most of them are used to improve the pain points of various industries. Therefore, the blockchain industry also has high requirements for product managers. Product managers must not only understand blockchain technology, but also have industry experience or a thorough understanding of a certain industry. Our company calls this kind of product manager an industry solution expert.

3. Product operation: I won’t explain this much. It is similar to product operation in other industries. The premise is that you must have a certain understanding of blockchain technology so that you can quickly get started with the company’s products. 4. There are other positions in other industries such as marketing, branding, finance, legal affairs, etc., and they are also available in the blockchain industry. If you receive an interview invitation for these positions in a blockchain company, it is recommended to do some homework first to understand them. What is blockchain and is it helpful for interviews.

C. How to interview to join a blockchain company

It has been very difficult to find a job since 2018.It didn’t go well. It took me a long time to find a start-up company with less than 10 people. During the interview, I learned that it was a company that makes digital currency exchanges and Dapps. I basically didn’t know anything during the interview. I thought there was no hope, but the next day I got a call telling me to come to work directly. I was so excited that I finally found a job.
I have been working in this company for a year and a half since May 2018. I have been exporting works and rarely output some theoretical articles, so now I want to slowly sort out my work over the past year. Learn more about blockchain, how to do design, and prepare for those who are going to interview with blockchain companies.

D. What should you do if the interviewer deliberately makes things difficult for you during the interview?

For companies, the purpose of interviews is to recruit suitable people. In individual cases, In addition, many questions may seem difficult, but they are actually testing the candidate's adaptability and flexibility. Therefore, you need to prepare some related similar questions before the interview, so that you can not panic on the spot.

1． "Brain teaser" questions

For example: Why are sewer manhole covers round?

Comments: Many job seekers feel that the interviewer has unclear intentions when asking "brain teaser" questions, and some even think that the interviewer is deliberately trying to embarrass people. The reason is that job seekers cannot prepare in advance for such questions. But we can see that, except for interviews for recruiting development and design positions, in fact, in most interviews, even if there are so-called brain-teaser questions, there are only a small number of them, and they mostly appear at the end of the interview. The interviewer does not ask for standard answers when asking these questions, but only intends to test the applicant's knowledge reserve, logical thinking ability and psychological endurance. Therefore, instead of complaining, job seekers should accumulate and practice more in these aspects and show full confidence during interviews.

2. Personal connections at work

Comment: If the applicant is not from the local area, but the interviewer needs to know who he knows locally by filling in a report or asking questions, etc., he probably wants to know from a side perspective. its stability. In addition, any position that requires external work now requires job seekers to have certain network resources, such as sales, marketing, reporters and editors, and even finance, accounting, etc. When the job seeker understands the purpose of the interviewer asking this question, he will not feel uncomfortable for no reason.

3. Ask "Do you have any questions to ask?"

Comments: A previous survey by 51job showed that more than 97% of interviewers will ask the above questions at the end of the interview. Many job seekers know that the interviewer will have a "last question", but they are often speechless on the spot or worry about making a mistake afterwards. In fact, just as the teacher asks students if they have any questions at the end of a class, the interviewer's "last question" is mainly to examine the candidate's preparation before the interview and the degree of concentration during the interview. After all, some questions may arise during the interview. It will not be mentioned by the interviewer but it is very important., such as vacation, salary, promotion, etc. As for what to ask and how to ask the "last question", candidates can know a thing or two from the previous interview process, but it is not very likely to rely on the "last question" to turn things around.

4． Advantages, Disadvantages, Personality and Temper

Comments: Regarding the issues of advantages, disadvantages, personality and temper, the advice to job seekers is: stay relatively honest. After all, the interview is a game process, and being glib and clueless is not advisable. As for the interviewer, it is of course important to examine a person's attitude and accomplishments, but it is not realistic to rely on a 30-minute interview to identify a person's strengths, weaknesses, personality and temperament. Instead of questioning candidates in order to lower their salary, it is better to consider how to maximize the value of a potential employee and avoid weaknesses to truly save costs for the company.

5． Personal finance-related matters such as income and expenses

Comment: As an interviewer, it is necessary to understand the income of the applicant's previous job, but it is a bit too much to care too much about other personal income and personal expenses. Some job seekers will deliberately lower their salary because they are worried that the interviewer will want to know too much about their personal income. However, everything has two sides. Job seekers can actually express a positive side to the interviewer: for example, even though their salary in their last job was low , but it does not mean that you have poor abilities. You are fully qualified for a new job with a higher salary; for example, a large personal expense is what drives you to work hard. You are willing to work hard in your new job and believe that you can rely on your personal abilities. Get more income. I believe that no interviewer cannot understand and accept a job seeker's reasonable explanation.

6． Regarding previous work experience

Comment: Work experience and experience are a very important part of the interview. As a job seeker, you should answer carefully and skillfully, so as not to reveal the secrets of the previous company, and to be able to To demonstrate your work ability, you must also prevent the interviewer from maliciously "borrowing your brain." For some of the interviewer's questions that may appear to be "borrowing brains", the job seeker can first respond generally with vague language. If the interviewer repeatedly asks for details, the job seeker can ask the interviewer appropriate questions instead of just pandering to them. In addition, netizens reported that some interviewers like to ask applicants to compare their previous and previous jobs. This is actually the interviewer's way of examining the netizen's job-hunting motivation and awareness of the new job. At this point, candidates don’t need to stick to the past—and avoid the embarrassment mentioned above—but should focus more on new jobs in the future.

Objectively speaking, the above questions are not too "excessive" in themselves, but we have to deny that there are some interviewers in the market whose business skills are not up to standard, and some companies have biased employment concepts. Negative situations that can affect the reputation of the entire industry. Therefore, while we encourage job seekers to take any interview seriously, we also call on our companies to pay enough attention to any employee when recruiting, even if it is a hierarchical level. (over)

E. What is blockchain technology and what aspects may it be used for in the future

The development of technology is often beyond your imagination, from the agricultural revolution to the industrial revolution to the information revolution , up to now has started the blockchain revolution. Reaching the height of the cognitive revolution should be considered a relatively big proposition. Why did the previous emergence of the Internet, big data, artificial intelligence, etc. not mention the cognitive revolution, but blockchain can?

How to quickly enter the blockchain industry?

1. Find the top experts in this industry and learn or communicate with them, such as Li Xiaolai, such as Uncle Cai

2. You can buy some books. News books are not as mixed as Taobao. There are only a few classics, choose a few and read them through

3. You can search for more related articles, public accounts, Zhihu or other, which are very informative. You can find yourself after reading 30 high-quality articles. Article, you are basically getting started.

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WeChat public account: Workplace Cheese Pie, tell you about things in the workplace

F. In the new retail era, how to use blockchain technology to create better customers Marketing Relations

Author | Campbell R. Harvey

Source | Shiji Business Review (ID: efuture555)

In the marketing and advertising industry, blockchain technology has more important application significance. However, survey data from "CMO" shows that only 8% of companies believe that blockchain technology is medium or medium in marketing. important role.

Although the blockchain concept has received a lot of hype, the obvious result is that blockchain technology is not well understood. Such "conceptual hype + lack of in-depth understanding" has caused certain obstacles to the in-depth application of blockchain technology, causing marketers to adopt a "hesitant and wait-and-see" attitude towards this technology.

Blockchain technology has the characteristics of transparency, stability and security, which makes this technology widely used in supply chain management (SCM, SupplierChainManagement), smart contracts (Smart Contracts), and financial reporting (Financial Reporting). It has reliable and trustworthy advantages in information management such as IoT (Internet of Things), private medical treatment, and even power grids. At the same time, the data transfer model of blockchain technology greatly reduces transaction costs, achieves verification and effective exchange of ownership, and opens the door to real-time micropayments. This information exchange model reduces payment friction, some intermediaries and intermediate links that make a living disappear, and it becomes possible for consumers to own and control personal information. All of the above have allowed us to see the breakthroughs in the application of blockchain technology in information management, transactions, marketing and other fields.subversive potential.

Today, financial transactions have considerable transaction costs. Retailers need to pay a 3% payment processing fee to credit card companies (Translator's Note: 3% is the US processing fee standard), and payment processing fees at gas stations are even higher. Sellers who open stores on eBay and Shopify need to bear payment and transaction fees, transaction fees for paying with PayPal, etc. All of these fees add to the cost of goods and are often passed on to consumers. Therefore, with the widespread use of credit cards and debit cards, many merchants have set consumption limits to avoid loss of profits caused by excessive fees.

Blockchain technology will significantly reduce financial transaction costs, even approaching "zero transaction costs." Even small transactions will enjoy this profit. In the financial field, financial giants such as Mastercard and Visa are already using blockchain technology to handle local currency remittance business. The entire process is safe and transparent, which brings more choices and benefits to merchants. Cost comparison opportunities instead of relying solely on credit card transactions.

In the field of marketing and advertising, blockchain technology also has a profound impact. Currently, marketers are already using shared information purchased from third-party social media (such as Facebook) to obtain customer marketing data. This move undoubtedly illustrates the marketing value of data and also points to the trend and potential of digital marketing.

However, using blockchain technology, merchants can use micropayments to incentivize consumers to share personal information without the need for intermediary merchants. For example:

A grocery chain can pay consumers $1 for installing their APP;

If consumers agree to enable location tracking, they can get another $1 Rewards;

If consumers open the APP "1 time per day" and spend at least 1 minute on it, retailers can pay them a few cents or store points to reward customers for their loyalty. Spend.

During this period, merchants will push promotions and special offers to consumers.

In fact, consumer customization opens up some legitimate marketing mechanisms, such as providing personalized marketing or prices. This is one of the main values ​​of consumers voluntarily providing various data. This method of marketing estimation derived from real consumer data will not only reduce the risk of fraud caused by anonymous promotions, but also reduce the various risks of promoting APPs due to incomplete and inaccurate consumer information. Application troubles.

The same method as the above method of promoting the use of APP can also be used for "smart contract" (a virtual agreement that does not require a middleman to confirm, audit and verify identity due to the support of blockchain technology) marketing middle. based onWith the support of blockchain technology, consumers will activate this "smart contract" when they subscribe to emails or bookmark registration reward programs. After that, whenever consumers interact with emails or advertisements, small incentives will be automatically deposited. Consumer wallet. This brings us to our next topic.

A similar model can be used in the website promotion advertising business, that is, motivating consumers through compensation to drive page views for each advertising page.

In 2016, a study released by HubSpot showed that most Internet users do not like pop-up advertising windows and mobile window ads, believing that online advertising seriously interferes with vision and has certain intrusive and damaging negative effects. For this reason, more and more users are installing ad blocking tools. This widespread trend of distaste has had significant punitive consequences for the advertising industry. It is estimated that ad blocking will cost publishers a whopping $35 billion in lost revenue by 2020.

With the support of blockchain technology, marketers can rethink their advertising, marketing promotion and revenue models, that is, consumers who pay attention to marketing and advertising can directly pay them "small incentives" "Of course, this method will also get rid of the middle layer of advertising distribution, Google or Facebook.

It is believed that the “duopoly” of Google or Facebook in the Internet and digital advertising will soon be threatened by the application of blockchain technology. Although keyword-based search will not completely disappear, its advantages will no longer exist. Ultimately, individuals will take control of their own private online profiles and manage their own social networks.

With the help of blockchain technology, companies can bypass some of the current social media “giants” by interacting directly with consumers and share the rewards of browsing ads with consumers. In 2016, Google reportedly generated an average of $73 in revenue per active user through advertising. Of course, $73 is just the average return for more than 1 billion active users, and we can reasonably estimate that the revenue Google brings to some highly valued people will be far more than $1,000. Just imagine, when companies use blockchain technology to implement "voluntary browsing advertising" and deliver effective product consumption value to consumers, how great the marketing effect will be?

With the help of blockchain technology, advertising delivery and the degree of consumer participation can also be confirmed to avoid excessive advertising and the abuse of email advertising. Because excessive advertisements and flooding of email advertisements will not only make consumers bored and lose motivation to purchase, but will also aggravate consumers and create resentment, thereby blocking advertisements. For example, consumers who have already purchased the product will not be willing to receive it anymore. Any advertising placed by the Company.

Blockchain technology can also be used to verify the source of marketing information. Micropayments will effectively destroy large-scale phishing spam emails, weaken the interference of ineffective marketing on people, and purify the email environment.

Approximately 135 billion spam emails are sent to users every day, accounting for 48% of all emails sent. With only one reply for every 12.5 million emails sent that are considered "junk," the waste and disruption are staggering.

Using blockchain technology, as long as the recipient is paid a small marketing fee, spam can be filtered or blocked through these small marketing costs. With the help of these marketing costs, companies can help identify the target emails. Marketing or trading to consumer groups with independent wishes.

A similar situation is that on the Internet, every time a user clicks on a link, a small micropayment transaction may be generated. In most cases, users only need to pay a small fee, for example, it only costs one cent to read a news article. This kind of micropayment will be a powerful weapon in defeating "denial of service attacks". (Translator's Note: Denial of service attacks, referred to as Dos attack. Dos attack is a type of network attack. This attack has always been a problem that cannot be reasonably solved. For example, an attacker recruits a robot to attack a website, Sending millions of requests causes the website to crash due to full cache, slow response or even outage).

Blockchain technology can also prevent robots from setting up false media accounts, sending a large amount of false information to users, and stealing the online advertising revenue of big brands. Online authenticity is indeed baked into blockchain technology.

Keybase.io is a company dedicated to solving the problem of social media fraud, using blockchain technology to allow individuals to prove that they are the legitimate owners of various social media accounts. This makes marketing impact easier to track and marketing spend easier to demonstrate, both of which represent major breakthroughs for the marketing industry.

As of 2016, fraudulent or deceptive display advertising resulted in a loss of $7.6 billion, and this loss accounted for 56% of total display advertising revenue. In the next few years, this number is expected to increase. will rise to $10.9 billion.

Using blockchain technology to track advertising display activities, marketing organizations can monitor the execution of the entire automated advertising campaign to ensure that marketing support is used to promote return on investment (ROI), and can directly quantify and analyze marketing The input and output of activities generated by each user and each email.

By associating small marketing behaviors with micropayments, blockchain technology solves these attribution problems that have plagued marketers in industry operations and management for decades.

Additionally, create new media streamsOrdinary people who create popular content, such as some popular videos or social posts, can receive "rewards" every time they are clicked, all thanks to "blockchain technology". But the current situation is that unless their work is published on a subscription-based online platform or channel, they are not paid a penny.

In all these blockchain application scenarios, content creators have the right to create and manage their own successful works.

Coupit is both a cryptocurrency (Coupit Coin) platform and an open market where businesses and individuals can sell their products and services. The difference is that Coupit is an e-commerce platform powered by blockchain technology, and Coupit is preparing to maximize the use of blockchain technology to improve the impact of its marketing content.

Based on the support of blockchain technology, the company's marketers can intervene in the development process of consumer loyalty programs and group buying alliance programs. Consumers can exchange their own rewards and offers with each other, and marketers can easily differentiate between dormant and loyal customers. This visible, transparent, and easy-to-operate means helps marketers create personalized marketing prices and promotions for customers, thereby expanding their marketing effectiveness.

Even if aggregator analysis or intermediary analysis is necessary, micropayments will allow businesses to bypass ad blocking tools, and individuals will have control over the amount of personal information they share and will directly receive ad views. With the rewards coming, many privacy issues will also be completely solved due to legal protection.

Take the Brave browser as an example. This new web browser developed by Brendan Eich, co-founder of the Mozailla project and creator of the JavaScript language, in addition to providing a new level of privacy and security protection, Brave enables a blockchain system designed to transform the relationship between users, advertisers and content creators. Its “Basic Attention Tokens” (BATs) are tokens for a blockchain-based advertising platform. The project aims to eliminate third-party advertising transactions, protect user privacy, reduce advertising fraud, and share content with users. Revenue to reward users' attention to improve online advertising. _ Translator's Note) will allow publishers and advertisers to monetize value-added services to gain part of the growth associated with the advertising business, 73% of which is driven by Facebook and Google dominates.

As blockchain becomes mainstream, all intermediaries will need to adapt their business models. The decision-making chain changes structurally:

Individual consumers will have greater control over how they share their private information;

Consumers will decide how they spend their time interacting with advertisers;

Spam and phishing scams are blocked, and from a cost perspective, the more spam they send, the less sustainable their business will be Go down.

From an enterprise perspective, this may mean a higher level of control over the traffic quality of all marketing promotions, as well as a better understanding of consumer behavior based on data management.

On the other hand, ads cannot be served without a transactional fee being paid to each affected individual. Consumers will also be motivated to post real and accurate social information online, such as describing content of interest, etc., and they will also pay for it. Instead of paying marketing fees to social media middlemen, marketers will pay directly to the end consumer. When the target consumers are high-value customers, the incentive mechanism will also increase, and the marketing will directly hit the bull's-eye.

Blockchain technology has great potential in reshaping social trust, making social trust more powerful, increasing visibility, connecting multiple resources, and rewarding individuals for their contribution to transactions. Marketing activities and the advertising industry have will be fundamentally affected by these changes. Not only for the company's top marketing leaders (CMO, chief marketing officer), but also for decision-makers such as corporate strategic planning, finance, and technology decisions, pushing them to design and implement blockchain as a priority business matter. From an operational perspective, companies may establish new high-level trust models with consumers and ultimately connect consumers with products through credible marketing campaigns.

Marketing managers and technology managers are likely to use blockchain technology to reshape corporate customer relationships. Early introduction of this far-reaching technology will help companies seize market opportunities and benefit from this technology. Benefit in advance from technologies that will be widely used in the future.

About the original author:

Campbell R. Harvey is currently Professor of Finance and J. Paul Sticht Professor of International Business at the Fuqua School of Business, Duke University. He served as the 2016 U.S. President of the American Finance Association. Professor Harvey is an investment strategy advisor to Man Group, PLC, and a partner and senior advisor to Research Affiliates, LLC. For the past 5 years, he has taught blockchain courses at Duke University: Innovation and Crypto ventures.

Christine Moorman is T. Austin Finch, Duke University’s Fuqua School of BusinessSenior professor of business administration and editor-in-chief of Journal of Marketing.

Marc Toledo, a senior associate focusing on blockchain and digital transformation at PwC, graduated from Duke University with an MBA and worked at the World Bank and Apple During this period, he led large-scale projects related to cybersecurity, machine learning, and artificial intelligence.

G. Does anyone know if you need to take a test when interviewing at Big Blockchain Technology?

Yes, Blockchain Technology companies have very high requirements, so you’d better take it in advance Be prepared

H. Is the sales of blockchain companies reliable?

If the company is formal, then it is reliable. In fact, many times it is your own mentality that is the problem. Once you see it away, you can accept it. There is no problem with blockchain companies. As long as it is not illegal, I think it is OK. But it mainly depends on whether you are interested, but if the conditions and development space provided by the blockchain company are good, I think you can give it a try. In fact, blockchain is still developing well, and many large companies are engaged in blockchain. Blockchain is defined as an innovative application model of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies in the Internet era. From a technical perspective, blockchain is a typical distributed system.
Originally, every job change means unknowns. Sometimes when we stay in a position for a long time, it is easy to think that we know enough, but in fact, all you know is what you are exposed to. If you think about it, society is developing so fast and new things are emerging one after another. It is impossible for us to know everything we encounter. But one thing we can be sure of is that we are always learning new things. In other words, we are always growing up.
If the company is willing to give you the opportunity to get to know, explore, and grow, then I think no matter what industry you are in, such a company is worthy of you giving it a try and giving yourself a chance. It also gives the company a chance.
Finally, I want to say to you: Come on, I hope everything goes well for you.

I. Popular explanation of what is blockchain

Popular explanation of what is blockchain

Popular explanation of what is blockchain, blockchain is the present A hot topic, the development speed in China is getting faster and faster, but many people still don’t know what blockchain is? Now I will give you an easy-to-understand explanation of what blockchain is!

Popular explanation of what blockchain is 1

Generally speaking, blockchain is a decentralized distributed ledger database. The advantage of this distributed ledger is that buyers and sellers can trade directly. No intermediary is needed, everyone has a backup, even ifIf you lose this, it won't be affected.

Suppose you have a ledger at home, and your parents give you your salary and ask you to record it in the ledger. You misappropriated more than ten yuan privately because of your greed, and no one else knew about it. But the way to solve the problem with blockchain is to keep accounts with the whole family. Not only you are keeping accounts, but your father, mother, brother, sister, younger brother, sister, etc. are all keeping accounts. They can all see the general ledger, and you It cannot be changed, and neither can others.

Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain technology has been widely used in different industries. Such as product traceability, copyright protection and transactions, payment and settlement, Internet of Things, digital marketing, medical care, etc.

Popular explanation of what blockchain is 2

Common questions in blockchain engineer interviews

What do you think the block in blockchain technology means?

The blockchain consists of information about all financial transactions. A block is nothing more than a list of records. When these lists are combined together, they are called a blockchain. For example, if an organization has 100 ledgers, their combination is called a blockchain, and a single ledger will be considered a single block.

Why is blockchain a trustworthy approach?

There are many reasons to trust blockchain. The first reason is that it is compatible with other business applications because it is open source. Secondly, it is secure because it was developed for online transactions, so the developers pay special attention to its data synchronization while keeping it safe. Because the type of business it holds is unrelated, it is easy to consider distinguishing chains when choosing.

How much do you know about blockchain?

This is a technology that was actually designed for Bitcoin and later heavily promoted for the multiple benefits of monitoring and recording all financial transactions on the network. This is a trusted method that is currently being used by many organizations. Since everything is secure and open source, it is easy to gain trust in the long run.

Utilizing blockchain in an organization, if there are specific technical requirements for that network?

No specific conditions of use. However, the network must be a peer-to-peer network under the relevant protocol. It literally just validates new blocks and helps organizations stay in sync without having to invest in third-party applications.

What is encryption? What is its role in blockchain?

Data security is always very important. Encryption is basically a way to help organizations keep their data secure. In this technique, data is encoded or altered to some extent by the sender before being sent to the network. Only the receiver can know how to decode it. in blockchain because it increases the overall security and authenticity of the blockThis approach is very useful to block the block's properties and help ensure its safety.

What types of records can be saved on the blockchain? Are there any restrictions?

There are no restrictions on any type of records in the blockchain approach. Currently, many organizations around the world are using this approach, and the fact is that medical transaction records, organizational related events, administrative activities, transaction processing, identity management, document records are all common record types that can use blockchain. And record keeping is not limited to these applications..

What is double spending?

This is one of the main issues related to digital currencies. In practice, this is a condition of passing a digital certificate, since the card can be used multiple times through a digital file that is often easily cloned. It only leads to inflation and the organization has to bear huge losses. A major technical goal of blockchain is to eliminate this approach as much as possible.

Explain the importance of blind signatures and how they are useful?

It is actually a form of digital signature, an important part of cryptography, where all information is blinded until it is actually considered or signed. This is a proven method often considered in different privacy-related agreements between the author and the signatory. Digital currency design is one of the most common examples.

What is key sharing? Are there any benefits to blockchain technology?

As we all know, security issues in digital transactions are very important. Key sharing is a similar approach. In blockchain technology, this is a method of dividing keys or personal information into different units and sending them to network users. The original information can only be merged if the participant who distributed the key agrees to be merged with other participants. It can provide various security-related benefits in blockchain technology.

What organizations can use blockchain technology?

This method can be considered as commercial class without strict upper limit. In fact, almost all businesses are doing or online financial transactions that require them to successfully complete the implementation process. Large enterprises, financial institutions, private enterprises, government departments, and even defense agencies can easily trust this technology.

What is the difference between a blockchain ledger and a general ledger?

First of all, the main difference is that blockchain is a digital ledger that can be easily decentralized. This method is far less likely to go wrong than a regular ledger. Normal books are written by hand or by hand, blockchain does all the tasks automatically. You just need to configure it the right way and follow all the guidelines.

What is a soft fork?

Blocks in the ledger are included in a way that builds the longest chain, i.e. the chain with the greatest cumulative difficulty. A fork is a proof method where two candidate blocks compete to form the longest blockchain and two miners find a working problem.The method failed to synchronize with the other party in a short period of time. Causes network fragmentation because some nodes get blocks from miner #1 and others get blocks from miner #2. Forks are usually resolved in one block because the probability of this happening again becomes very low as the next block comes out so soon there is a new longest chain that will be considered primary.