1). Will DApps be able to replace centralized applications in other fields in the future?

My answer to this question is very easy I believe 100% that in the future Aur Main Bhi in just about a few years as we can seen that cryptocurrency Has been adopted by almost everyone and many people are understanding the power of cryptocurrencies and blockchain 100% believe that in the upcoming years when people will have more knowledge about the blockchain and how secure it is and how powerful they will become if they start adopting applications made on blockchain system because then there will be no Central authority controlling all the data so I believe that it in the future there will be e Mor adaptation of decentralized applications and not just in this specific financial field but in other field as well like in gaming medical field and entertainment field there will be many more decentralized applications in the future and it will replace all the the application that we currently use 

2). Is there a possibility for DApps to steal user data?

Well the answer to this question is very easy and that is no there is no possibility for the decentralized application to steal your data because as we all know that it runs on a blockchain system and it operates on smart contracts so there is no third party involved in the transaction for there is no third party whom can it or do manipulation with your data or steal your data  in the blockchain system once a data is put it cannot be replaced or changed so if someone tries to kill the data they will have to hack the whole blockchain system which is nearly impossible for anyone to do there has been no cases of a blockchain hack till now it requires a very huge power to hack into a blockchain and steal somebody's data even if someone  hack into a blockchain this is nearly impossible to do manipulation and replace your data steal your data smart contracts make sure that everything is happening automatically with no involvement of third party

3). Explain the ways in which a DApp promotes its application to the public?

To promote decentralized application there are so many ways these days but I will only talk about the best ways through which the public can really know what is the real purpose and what are the  decentralize application release 

 YouTube

 there are so many people talking about cryptocurrencies and everyone who don't have any knowledge about cryptocurrency and blockchain their first option is YouTube they always go to YouTube and watch videos about it and learn what it is so if someone wants to promote their applications I mean like decentralized applications there are so many big channel they are only talking about cryptocurrencies why I think it's really good to promote the applications through them because they can really explain and their audience is all all about cryptocurrencies so they can really help and promoting the application the all the YouTube channels

blog posts

 we all know that there are some really active blogs out there talking regularly about cryptocurrencies and blockchain Technology in their audience is very huge someone wants to promote their Descent allies application that can use these mediums to promote their applications and when it comes to block post people who read this blog post they are really connected to the other so this is a really good way to promote the decentralized application

4). Choose a DApp and do a detailed analysis that proves that the DApp is a good one to use. (Provide proof with screenshot).

After doing a little bit of research and after I went to the website dappreader  I was going through some really good as in which I knew a few of them but still I continued my research and then I found this really amazing decentralised application which is openSea 

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 Opensea

 this app provides you to sell and buy NFT list your own NFT  is on the website The website is very easy to understand and when I look at the layout it's very easy when you open the website there is a very few options it means the website is not full of click and buttons when you open the website you will see an option which explore when you click on that you will see all the listed NFT that you can buy from this website 
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1 Goto dappreader seach for the app  opensea

2 Open the dapp   and then  you will see some options 

3 Click on the explore button to see the listed NFTs 

4 To buy NFT click on the NFT  and  then they will ask you to connect wallet 

5 Connect your wallet and pay the  price and you will own that NFT 

I have used this website and I know it's very easy to list your own ft the process is not that difficult there is only e a few steps and then you can add your NFT to the website and then if someone wants to buy it they can really buy it very easily and the bi process is also very easy if you want to buy anything from this website you can easily buy it and when it comes to the options everything is listed very openly and there are search option as well so you can search for your product as well when it comes to the speed of this dapp this is very fast So I think this decentralized application is very good to be used

5). If you were a DApps developer, what kind of app would you like to create? Explain all the details of the DApp plan that you will make.

If I ever try to make a decentralized application the application will be about online buy and sell products not virtual products but real life product like you can  buy and sell mobile phones and TV television any other electronics and you can also sell your old electronics on that application the application will be completely decentralize to your data will always be secure your data like your phone number and all your detail their application will be built on ethereum blockchain using the smart contracts

 all the transactions which will take place in the dapp  they will use ethereum for the transactions there will be inbuilt wallet in the application to hold ethereum in case if you want to to buy something else with that money the application will be like a virtual shop where anyone can buy and sell their products but the main purpose of that application will be to buy and sell old and used products

 the application will not be e restricted to just mobile phones and small items anyone can sell anything as far is there are some one to buy that you can also sell old and new products as well the payment system will be p2p  so there is no fraud and scam in the decentralized application

6). Conclusion.

Decentralization is really important for the application because we see that many time it has happened that many big companies centralised applications has sold the data of its users to the big companies just for the purpose of advertisement and to make money which is unnecessary and very disturbing so every have decentralized applications the data stealing will be very hard for the companies and then the user can easily operate without any disturbance

 decentralized applications are necessary because the big companies Run their Monopoly over its users and what they want they do it there is no involvement of its users users don't you want know what is happening in the application and it just happened so there is a decentralized application users will have more control over the application

thanks to professor @wahyunahrul