<p>&nbsp;</p>
<h2 style="text-align: justify;">Blockchain Interview Questions</h2>
<p style="text-align: justify;">The following are some of the most frequently asked <em>Blockchain interview questions</em> in the interview, here are the answers for them.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q1. What is Blockchain Technology?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q2. What do you mean by blocks in the Blockchain technology?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">A block in the Blockchain is nothing but just a list of records. When these lists are joined with each other, they are known as Blockchain. For e.g. &ndash; an organization has 100 ledger books the combination of which is known as Blockchain and a single ledger would be known as a block.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q3. How does a block is recognized in the Blockchain approach?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Every block in this online ledger mainly consists of a hash pointer that acts as a link to the block which is previous to it, transaction data, and in fact a stamp of time.</p>
<pre style="text-align: center;"><em><strong>At TekSlate, we offer resources that help you in learning various IT courses. We avail both written
 material and demo video tutorials. To gain in-depth knowledge and be on par with practical
 experience, then explore <a href="blockchain-training" target="_blank" rel="noopener">Blockchain Training</a>.</strong></em></pre>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q4. Is there any network-specific conditions for using Blockchain technology in an organization?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">No, there is no such specific condition on using it. However, the network must be a peer-to-peer network under the worried protocols. It really validates the new block simply and helps enterprises to keep up the pace in this matter without capitalizing in third-party applications.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q5. Is it possible to modify the data once it is written in a block?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">No, it is not possible to do so. In case any customization is required, the organization simply has to remove the information from all other blocks too. It is because of no other reason than this, data must be given the extreme care of while using this method.</p>
<h2 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q6. What type of records can be kept in Blockchain? Is there any restriction on the same?</strong></span></h2>
<p style="padding-left: 30px; text-align: justify;">There is no restriction of keeping records in the <strong>Blockchain approach</strong>. It must be noted that the record-keeping is not just limited to these applications only.</p>
<p style="padding-left: 30px; text-align: justify;">The common types of records that can be kept on them are:</p>
<ol>
<li>Records of medical transactions</li>
<li>Identity management</li>
<li>Transaction processing</li>
<li>Events related to organizations,</li>
<li>Management activities</li>
<li>Documentation</li>
</ol>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q7. What is encryption? What is its role in Blockchain?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Encryption is mainly a method that helps organizations to keep their data secure. In this method, the data is encoded up to some extent before it is sent out of a network by the sender. The only receiver can know how to decode the same. In Blockchain, this method is useful because it simply adds more to the overall security and validity of blocks and help to keep them secure.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q8. What exactly do you know about the security of a block?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">A block cannot be customized by all the users on a network. Therefore it provides an excellent level of security. Additionally, every block is secured using cryptography that is another vote in this matter. Thus one needs not to worry about the security of data that is present in a block.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q9. Why Blockchain is a trusted approach?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain can be trusted due to several reasons. The very first thing is its compatibility with other business applications because of its open-source nature. The second one is security. As it was intended for online transactions, the developers have paid special attention in keeping up the pace when it comes to its security. It really doesn&rsquo;t matter what type of business one owns, <strong>Blockchain </strong>can easily be considered.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q10. What is Secret Sharing? Does it have any benefit in Blockchain technology?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">It is well-understood that security matters a lot in digital transactions. Secret sharing in Blockchain technology is an approach that divides secret or personal information into different units and sent them to the users on the network. The original information can only be combined when a member to whom a share of the secret is allocated agree to combine them together with others. There are several security-related advantages it can offer in Blockchain technology.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q11. Why Blockchain is a trusted approach?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain can be trusted due to several reasons. The very first thing is its compatibility with other business applications because of its open-source nature. The second one is its security. As it was intended for online transactions, the developers have paid special attention in keeping up the pace when it comes to its security. It really doesn&rsquo;t matter what type of business one owns, Blockchain can easily be considered.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q12. What is Blockchain Durability and robustness?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain technology is like the internet in that it has a built-in robustness. By storing blocks of information that are identical across its network, the blockchain cannot:</p>
<ol style="text-align: justify;">
<li>Be controlled by any single entity.</li>
<li>Has no single point of failure.</li>
</ol>
<p style="padding-left: 30px; text-align: justify;">Bitcoin was invented in 2008. Since that time, the Bitcoin blockchain has operated without significant disruption. (To date, any of the problems associated with Bitcoin have been due to hacking or mismanagement. In other words, these problems come from bad intention and human error, not flaws in the underlying concepts.)</p>
<p style="padding-left: 30px; text-align: justify;">The internet itself has proven to be durable for almost 30 years. It&rsquo;s a track record that bodes well for blockchain technology as it continues to be developed</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q13. What is Transparent and incorruptible in blockchain?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">The blockchain network lives in a state of consensus, one that automatically checks in with itself every ten minutes. A kind of self-auditing ecosystem of a digital value, the network reconciles every transaction that happens in ten-minute intervals. Each group of these transactions is referred to as a &ldquo;block&rdquo;. Two important properties result from this:</p>
<p style="padding-left: 30px; text-align: justify;">Transparency data is embedded within the network as a whole, by definition it is public. It cannot be corrupted altering any unit of information on the blockchain would mean using a huge amount of computing power to override the entire network.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q14. How does Bitcoin use Blockchain?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">A transaction is a transfer of value between&nbsp;Bitcoin&nbsp;wallets that gets included in the blockchain.&nbsp;&nbsp;Bitcoin&nbsp;wallets keep a secret piece of data called a private key or seed, which is used to sign transactions, providing a mathematical proof that they have come from the owner of the wallet.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q15. Is Blockchain an incorruptible ledger?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain ledger cannot be corrupted as per the developer&rsquo;s claim.</p>
<h3 id="N1013A" class="ibm-h2" style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q16. What are the business benefits of blockchain?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain consensus mechanisms provide the benefits of a consolidated, consistent dataset with reduced errors, near-real-time reference data, and the flexibility for participants to change the descriptions of the assets they own.</p>
<p style="padding-left: 30px; text-align: justify;">Because no one participating member owns the source of origin for the information contained in the shared ledger, blockchain technologies lead to increased trust and integrity in the flow of transaction information among the participating members.</p>
<p style="padding-left: 30px; text-align: justify;">The immutability mechanisms of blockchain technologies lead to lowered cost of the audit and regulatory compliance with improved transparency. And because contracts being executed on business networks using blockchain technologies are smart, automated, and final, businesses benefit from increased speed of execution, reduced costs, and less risk, all of which enables businesses to build new revenue streams to interact with clients.</p>
<h3 style="text-align: justify;"><span style="font-size: 12pt;"><strong>Q17. What are blockchain requirements?</strong></span></h3>
<p style="padding-left: 30px; text-align: justify;">Blockchain is a truly disruptive technology that can transform business networks. We also believe that this innovation has to happen in the open, collaborating with other technology companies and industries. To this end, IBM continues to contribute code to the Hyperledger Project.</p>
<p style="padding-left: 30px; text-align: justify;">From IBM's perspective, industrial-grade blockchain technologies have the following characteristics:</p>
<ul>
<li style="text-align: justify;">A&nbsp;shared, permissioned ledger&nbsp;is the append-only system of record (SOR) and single source of truth. It is visible to all participating members of the business network.</li>
<li style="text-align: justify;">A&nbsp;consensus protocol&nbsp;agreed to by all participating members of the business network ensures that the ledger is updated only with network-verified transactions.</li>
<li style="text-align: justify;">Cryptography&nbsp;ensures tamper-proof security, authentication, and integrity of transactions.</li>
<li style="text-align: justify;">Smart contracts&nbsp;encapsulate participant terms of agreements for the business that takes place on the network; they are stored on the validating nodes in the blockchain and triggered by transactions.</li>
</ul>
<p style="padding-left: 30px; text-align: justify;">In addition to these attributes, enterprise blockchain technology needs to meet key industry requirements such as performance, verified identifies, and private and confidential transactions. Hyperledger Fabric has been architected to meet these needs. It is also designed with a pluggable consensus model, allowing businesses to select an optimal algorithm for their networks.</p>

Blockchain Interview Questions And Answers

interview-questions-on-blockchain

<p>&nbsp;</p>
<h2><span style="font-size: 14pt; color: #e67e23;"><strong>Introduction</strong></span></h2>
<p>Blockchain is a distributed ledger technology that helps the user to store data on various servers around the world. Blockchain technology has gained much popularity in recent times because it aids in significantly reducing the risks associated with data storage on global servers, identifies fraud easily, and helps in maintaining the transparency of data.&nbsp;&nbsp;</p>
<p>Let us try to understand what is Blockchain?</p>
<div style="border-radius: 3px; background-color: #eaecf1; padding: 0 0 10px 0; margin-bottom: 20px;">
<p><span style="font-size: 13pt; color: #ffffff; padding: 10px 20px; font-weight: 600; text-align: center; border-radius: 3px; display: block; background-color: #008e81;">Index</span></p>
<ul>
<li style="text-align: justify;"><span style="font-size: 12pt;"><strong><span style="font-family: georgia, palatino, serif;"><strong style="color: #000000;"><a href="#a"> What is Blockchain?</a></strong>&nbsp;</span></strong></span></li>
<li style="text-align: justify;"><span style="font-size: 12pt; font-family: georgia, palatino, serif;"><strong><a href="#b">Working of Blockchain</a></strong></span></li>
<li style="text-align: justify;"><span style="font-size: 12pt;"><strong><span style="font-family: georgia, palatino, serif;"><strong style="color: #000000;"><a href="#c">Features of Blockchain</a></strong>&nbsp;</span></strong></span></li>
<li style="text-align: justify;"><span style="font-size: 12pt; font-family: georgia, palatino, serif;"><strong><a href="#d">What are the advantages of Blockchain?</a></strong></span></li>
</ul>
</div>
<h3 id="a"><span style="font-size: 12pt; color: #e67e23;">What is Blockchain?</span></h3>
<p>As the name suggests the technology revolves around a chain of blocks where digital information forms the blocks and its storage on public databases forms the chain.&nbsp;</p>
<p>The blocks of the blockchain are made up of digital pieces of information and are made up of three parts. They are-</p>
<p>1. Blocks house the important data about exchanges like the date, time, and dollar measure of your latest buy from Alibaba. (NOTE: This Alibaba model is only used for illustration)</p>
<p>2. Blocks house the data related to who is taking an interest in exchanges. A block for your lavish expenditure buy from Alibaba would record your name alongside Alibaba.com, (ALBB). Rather than utilizing your real name, your buy is recorded with no distinguishing data utilizing a special "computerized signature," similar to a username.&nbsp;</p>
<p>3. Blocks house the data that recognizes them from different blocks that are likewise created. Much like you and I have names to recognize us from each other, each block stores an interesting code called a "hash" that permits us to reveal it separated from each other square. Hashes are cryptographic codes made by extraordinary calculations. Suppose you made your lavish expenditure buy on Alibaba, however, while it's in travel, you choose something you can't avoid and require a subsequent one. Even though the subtleties of your new exchange would look indistinguishable from your prior buy, we can at present distinguish the block as a result of their codes that are unique to every block of the chain.</p>
<blockquote><em><strong>At TekSlate, we offer resources that help you in learning various IT courses. We avail of both written material and demo video tutorials. To gain in-depth knowledge and be on par with practical experience, then explore "<span style="color: #e03e2d;"><a style="color: #e03e2d;" href="blockchain-training" target="_blank" rel="noopener">Blockchain Training</a></span>".</strong></em></blockquote>
<h3 id="b"><span style="font-size: 12pt; color: #e67e23;">Working of Blockchain</span></h3>
<p>Let us now understand how it works</p>
<p>At the point when a block stores new information it is added to the blockchain. Blockchain, as its name proposes, consists of various squares hung together. All together for a square to be added to the blockchain, nonetheless, four things must occur:&nbsp;</p>
<p>1. An exchange must happen. We should proceed with the case of your hasty Alibaba buy. After quickly navigating different checkout briefs, your conflict with your better judgment and make a buy. As we talked about above, as a rule, a block will amass a huge number of exchanges, so your Alibaba buy will be bundled in the block alongside other clients' exchange data too.&nbsp;</p>
<p>2. That exchange must be confirmed. After making that buy, your exchange must be checked. With other open records of data, similar to the Securities Exchange Commission, Wikipedia, or your neighborhood library, there's somebody responsible for reviewing new information sections. With blockchain, nonetheless, that activity is surrendered over to a system of PCs. At the point when you make your buy from Alibaba, that system of PCs races to watch that your exchange occurred in the manner you said it did. That is, they affirm the subtleties of the buy, including the exchange's time, dollar sum, and members.&nbsp;</p>
<p>3. That exchange must be put away in a block. After your exchange has been confirmed as precise, it gets the green light. The exchange's dollar sum, your computerized mark, and Alibaba's advanced mark are completely put away in a square. There, the exchange will probably join hundreds, or thousands, of others like it.&nbsp;</p>
<p>4. That block should be given a hash. Much the same as a holy messenger acquiring its wings, when the entirety of a block's exchanges has been confirmed, it must be given a one of a kind, recognizing code called a hash. The block is then likewise given the hash of the latest block that has been added to the blockchain. Once hashed, the block can be added to the blockchain.&nbsp;</p>
<p>At the point when that new square is added to the blockchain, it turns out to be freely accessible for anybody to see&mdash;even you. On the off chance that you investigate Bitcoin's blockchain, you will see that you approach to exchange information, alongside data about when where, and by whom the block was added to the blockchain.</p>
<h3 id="c"><span style="font-size: 12pt; color: #e67e23;">Features of Blockchain</span></h3>
<h4 dir="ltr"><span style="font-size: 12pt;">Distributed ledger</span></h4>
<p>All the information which has been stored in a block is shared on various occasions among all hubs of the system. As referenced above, blockchains self-update like clockwork. Data in a blockchain is considered as a common record.&nbsp;</p>
<p>The mutual data is effectively checked and is made available for anybody in the system. This likewise guarantees information can't be taken and is synchronized with different records. In particular, because there is no main issue, the information cannot be undermined or assaulted.</p>
<h4 dir="ltr"><span style="font-size: 12pt;">Great Security</span></h4>
<p>As opposed to the susceptible sites which can be effortlessly assaulted regardless of security, firewalls, and the passkey, in a blockchain, information is shared between various hubs with no essential issue, so it can't be taken.&nbsp;</p>
<p>Information is protected gratitude to encryption with private and open keys. Open keys are haphazardly created as a long string and are freely shared. The private key, then again, is utilized as a secret key to get to clients' information.</p>
<h4 dir="ltr"><span style="font-size: 12pt;">A Decentralized Technology</span></h4>
<p>Blockchain is a decentralized innovation, which implies any data put away in it goes about as a unit of the entire system. There is no brought together position; rather, all the data is shared among hubs&nbsp;</p>
<p>Information is constrained by a decentralized system, rather than a focal position. In this manner, the whole system works on the rule of distributed or client-to-client. Numerous associations, for example, banks and governments have begun utilizing blockchain to keep records. This doesn't add to the better information straightforwardness yet besides simpler to trace.</p>
<h4 dir="ltr"><span style="font-size: 12pt;">Immutability</span></h4>
<p>Blockchain is naturally checked at regular intervals. Each snippet of data included after self-assessment is known as a square.&nbsp;</p>
<p>Every hub of the system will have a duplicate of the present information; accordingly, the straightforwardness is submitted and the information cannot be altered because to alter a snippet of data, it must be adjusted in all hubs of the system, which is unthinkable. At the end of the day, defilement and information assault is impossible on blockchains.</p>
<p>&nbsp;</p>
<p style="text-align: center;"><span style="font-size: 12pt;"><a style="background-color: #e94350; color: #ffffff; padding: 10px 20px;" href="interview-questions-on-blockchain" target="_blank" rel="noopener">Blockchain Interview Questions</a></span></p>
<h3 id="d"><span style="color: #e67e23; font-size: 12pt;">What are the advantages of Blockchain?</span></h3>
<p>Here are some great benefits of using Blockchain-</p>
<p>1. The blockchain innovation considers checking without hosting to be subject to third-gatherings.&nbsp;</p>
<p>2. The information structure in a blockchain is affixed as it were. Along these lines, the information can't be changed or erased.&nbsp;</p>
<p>3. Its utilizations ensured cryptography to make sure about the information records. Likewise, the present record is subject to its adjoining finished square to finish the cryptography procedure.&nbsp;</p>
<p>4. All the exchanges and information are connected to the square after the procedure of most extreme trust confirmation. There is an agreement of all the record members on what is to be recorded in the square.&nbsp;</p>
<p>5. The exchanges are recorded in sequential requests. Along these lines, all the squares in the blockchain are time stepped.&nbsp;</p>
<p>6. The record is circulated over every hub in the blockchain who are the members. Along these lines, it is disseminated.&nbsp;</p>
<p>7. The exchanges put away in the squares are contained in a huge number of PCs taking an interest in the chain. Consequently, it is decentralized. There is no likelihood that the information whenever lost can't be recouped.&nbsp;</p>
<p>8. The exchanges that happen are straightforward. The people who are given authority can see the exchange.&nbsp;</p>
<p>9. The root of any record can be followed along the chain to its place of inception.&nbsp;</p>
<p>10. Since different accord conventions are expected to approve the passage, it evacuates the danger of copy section or extortion.&nbsp;</p>
<p>11. With the help of diligent contracts, the organizations can pre-set conditions on the blockchain. The programmed exchanges are activated just when the conditions are met.</p>
<h4 dir="ltr">Conclusion</h4>
<p>I hope that this article is able to answer your query of What is Blockchain. The concept of blockchain is not very difficult to understand. Go through this write-up step by step and I am sure you will get it.&nbsp;</p>
<p>In case you have any doubts or are stuck anywhere in this write-up, do write back to us. We will surely try to resolve it as soon as possible. Happy Reading!</p>
<p>&nbsp;</p>

What is Blockchain | Features and Advantages of Blockchain - Tekslate

What is Blockchain- The Essentials you need to Read!

what-is-blockchain

<p>&nbsp;</p>
<h2 dir="ltr"><span style="font-size: 18pt; color: #e67e23;">Implementation of Blockchain</span></h2>
<p>A plenty of organizations are concentrating on blockchain as this technology holds an array of potential to solve a variety of issues occurring daily in the functioning of finance. While some have already put blockchain up and running, there are others still stalling in the phase of research.&nbsp;</p>
<p><a href="https://www.fm-magazine.com/news/2018/nov/how-to-implement-blockchain-201820113.html" target="_blank" rel="noopener">Research conducted by PwC </a>found 84% of companies are involved in blockchain technology; however, only 15% have a live project that is underway. One of the major issues in the adoption of blockchain is the uncertainty in how the technology is regulated. And then, the lack of trust among users in blockchain always poses some of the other interruptions.&nbsp;</p>
<p>However, despite all the major issues, you cannot afford to give up and sit back. Experimenting has to be done. Moreover, if Gartner forecasts are to be believed, by 2030, blockchain may generate more than <a href="https://www.fm-magazine.com/news/2018/nov/how-to-implement-blockchain-201820113.html" target="_blank" rel="noopener">$3 trillion</a>. This means that a fifth of global economic infrastructure may run completely on a blockchain-based system.&nbsp;</p>
<p>So, with the right mindset and adequate steps, the implementation of blockchain should not be a tough task. In this post, let&rsquo;s find a few simple steps that may help you in this scenario.&nbsp;</p>
<p style="text-align: justify;"><em>Do you want to master Blockchain? Then enrol in<a title="Blockchain Training" href="blockchain-training" target="_blank" rel="noopener"><strong> "Blockchain Training"</strong></a> This course will help you to master Blockchain</em></p>
<h2 dir="ltr"><span style="font-size: 14pt; color: #e67e23;">Steps to Successful Blockchain Implementation:&nbsp;</span></h2>
<h3 dir="ltr"><span style="color: #000000; font-size: 12pt;">1.Identify a Use-Case</span></h3>
<p>The first step is to comprehend the use case. The key here is to develop a blockchain-based system that figures out the precise issues you are trying to solve. Comprehending the process completely and understanding the bottlenecks in the entire process is quite important.</p>
<p>Here, discovering a use case means discovering a process that offers identification and clarification to the organization as per the needs. This will help add clarity to objectives. You must start by taking a small step; so begin with a pilot use case.&nbsp;</p>
<p>Try exploring, testing, using and evaluating the process before implementing the same on a larger scale. Here are a few questions that you must answer:</p>
<ul>
<li dir="ltr" aria-level="1">
<p>Is the data being shared by different parties?</p>
</li>
<li dir="ltr" aria-level="1">
<p>Can various parties update data?</p>
</li>
<li dir="ltr" aria-level="1">
<p>Is the verification needed?</p>
</li>
<li dir="ltr" aria-level="1">
<p>Does it pose any issues while adding intermediaries?</p>
</li>
<li dir="ltr" aria-level="1">
<p>Is there any interaction happening between transactions?</p>
</li>
</ul>
<p>If you can find a positive answer to any of these questions, the blockchain would be the correct solution for you.&nbsp;</p>
<h3 dir="ltr"><span style="font-size: 12pt; color: #000000;">2.Developing a Proof of Concept (POC)</span></h3>
<p>Once you are done overviewing the ways wherein blockchain implementation can give advantages to your business, you can move forward to developing a Proof of Concept (POC). Here, you will have to implement your blockchain in any of the programming languages, such as Java and more.&nbsp;</p>
<p>For those who are unaware, POC is a process that helps comprehend the feasibility and potential of the project for the business. The beginning of POC happens just like any other business - that is - with significant planning. The process will begin with questions related to the project.&nbsp;</p>
<p>These questions must revolve around your business&rsquo;s nature and its objectives. It may also have questions related to the target market, especially if it is a niche market. Once questions have been answered, you will be ready to put the basic foundation of the blockchain POC. generally, you must have a good grasp of the directions. This will prevent unwanted issues during the development process.&nbsp;</p>
<p>Here are a few steps that you will have to follow:&nbsp;</p>
<ul>
<li dir="ltr" aria-level="1">
<p>Theoretical building: Here, you will have to create guidelines explaining the project&rsquo;s parameters.</p>
</li>
<li dir="ltr" aria-level="1">
<p>Prototype: It will comprise mockups, design, architecture, sketches, and codes.&nbsp;</p>
</li>
<li dir="ltr" aria-level="1">
<p>MVP: Known as the Minimum Viable Product, it is referred to as the minimum set of features.</p>
</li>
</ul>
<p style="text-align: center;"><a style="background-color: #e94350; color: #ffffff; padding: 10px 20px;" title="Blockchain Interview Questions And Answers" href="interview-questions-on-blockchain" target="_blank" rel="noopener">Blockchain Interview Questions</a></p>
<h3 dir="ltr"><span style="font-size: 12pt;">3.Choosing the blockchain carefully</span></h3>
<p>Considering that there is no one type of blockchain but a range of solutions existing out there, you will have to make sure that you are choosing the perfect type for your objective.&nbsp;</p>
<p>Avoid being a victim to the hype as you may end up selecting the wrong system or assessing the technology without completely comprehending its advantages. The types of blockchain majorly differ on the basis of whether they are quasi-private, private or public.&nbsp;</p>
<p>Also, blockchains can even be permissioned or permissionless, centralised or decentralised. The blockchain type that you may require will be entirely case-dependent.&nbsp;</p>
<p>For instance, if your objectives are financial and security regulations, you may require permission for, centralised <a title="What is blockchain" href="what-is-blockchain" target="_blank" rel="noopener">blockchain</a>.&nbsp;</p>
<h3 dir="ltr"><span style="font-size: 12pt;">4.Initializing the blockchain</span></h3>
<p>For the initialization of the blockchain, the first block has to be generated manually. This block must carry all of the features of the chain. And then, they are shared among different network nodes. In JSON format, a file gets created that defines the block.</p>
<p>Different parameters, like Timestamp and Nonce, must be specified. Once the JSON file has been filled, the client Geth is then responsible to create the folder that comprises blockchain and initializes the same.</p>
<h3 dir="ltr"><span style="font-size: 12pt;">5. Choosing the right consensus protocol</span></h3>
<p>The protocol simply means resolving a maths problem that needs a huge calculation. Whenever a miner offers a solution, it must get verified by everybody. The first person to find the solution gets to write the next block.</p>
<p>For the problem, the level of difficulty is adjusted in real-time, on the basis of the total power of a network. Such blocks get written periodically. This system, then, protects against spam and hacking attempts. You have a variety of consensus protocols to choose from, such as:</p>
<ul>
<li dir="ltr" aria-level="1">
<p>Proof-of-Work (PoW)</p>
</li>
<li dir="ltr" aria-level="1">
<p>Proof-of-Stake (PoS)</p>
</li>
<li dir="ltr" aria-level="1">
<p>Delegated Proof-of-Stake (DPOS)</p>
</li>
<li dir="ltr" aria-level="1">
<p>Byzantine Fault Tolerance (BFT)</p>
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<p>Proof-of-Weight (PoW)</p>
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<h3 dir="ltr"><span style="font-size: 12pt;">6. Designing Deliberately</span></h3>
<p>Blockchain must be designed cautiously as it does not just help solve the issues arising in an organization but also makes sure that the technology fits well with the existing process. If this doesn't seem to be the case, the existing processes will have to be revised to lay the foundation of blockchain.&nbsp;</p>
<p>Also, while choosing the technology or implementing blockchain, you must also think about a variety of other implications, such as compliance, cybersecurity, privacy and more.&nbsp;</p>
<h3 dir="ltr"><span style="font-size: 12pt;">7. Navigating Uncertainty</span></h3>
<p>Blockchain is, still, considerably new and the regulations are limited. This might change in the upcoming years. This means that companies will not only have to regulate the changing framework but also get involved in actively shaping it.&nbsp;</p>
<p>Asking questions and making recommendations on regulations could be essential to the community and the organizations as a whole. Also, one thing should be kept in mind that regulatory approaches for blockchain vary as per the nation.&nbsp;</p>
<p>So, you must work in accordance with the regulators to shape the emerging policies of blockchain and its best practices so as to evaluate the evolving rules and regulations.&nbsp;</p>
<h2 dir="ltr"><span style="font-size: 14pt; color: #e67e23;">Blockchain Implementation Examples &amp; Use Cases</span></h2>
<p>Before you begin to implement blockchain don&rsquo;t you want to see some blockchain implementation examples that will inspire you? Let's have an overview of different industries.</p>
<h3 dir="ltr"><span style="font-size: 12pt;">Banking&nbsp;</span></h3>
<p>One of the leading examples of blockchain implementation in the banking sector. Keeping in mind the number of security breaches that the banking system experiences, blockchain implementation turned out to be an adequate alternative to online systems of banking.&nbsp;</p>
<p>This is the reason why specific banks have been compelled to implement this technology to maintain the confidence of their customers. As a result, it offers safety, speed, and precision in transactions and other banking activities.&nbsp;</p>
<h3 dir="ltr"><span style="font-size: 12pt;">Insurance</span></h3>
<p>For any type of insurance company, transparency of data is essential. The implementation of blockchain technology offers a streamlined exchange of data and makes sure that everything remains transparent.&nbsp;</p>
<p>This is generally executed through smart contracts. It authenticates the terms of contracts and comprehends if a specific situation or occurrence falls under the terms and conditions of the said contract. This leads to quicker claim amount issuance on the basis of merit. Along with that, records get updated and maintained quickly.</p>
<p>It is essential to keep in mind that the health</p>
<h3 dir="ltr"><span style="font-size: 12pt;">Healthcare</span></h3>
<p>care industry needs proper record-keeping facilities. Moreover, such records that comprise sensitive data of a patient must get utmost importance. Thus, the implementation of the blockchain in the healthcare supply chain focuses heavily on pharmaceutical needs.&nbsp;</p>
<p>While blockchain effectively serves these needs, it also offers an opportunity to integrate the methods for online payment. This can also assist medical service providers and hospitals link up with insurance companies for effective payment processing.&nbsp;</p>
<h3 dir="ltr"><span style="font-size: 12pt;">Real estate</span></h3>
<p>This is yet another amazing case study of blockchain integration. With the onset of the digital world in the real estate domain, the existence of hacking risks cannot be overlooked. These comprise altering of details with errors, like inaccurate paperwork, the worst scenario of record-keeping and more. This may lead to inordinate losses to ordinary people. Fortunately, the implementation of blockchain caters to remove or decrease the error margin, thus, enhancing the reputation of the firm.&nbsp;</p>