Good day crypto lovers & friends ! It's another weeks contest and we are ever grateful @cryptoacademy community and @steemitblog for their awesome hosts in order to earn and learn from Cryptocurrency, with the help of Educative Professor's like @yousafharoonkhan. He's lectures was great and I will answer the assignments given to prove my learning abilities from his class :

DECENTRALIZED and CENTRALIZED EXCHANGES

Decentralized Exchange
Decentralized exchanges (DEX) are a types of cryptocurrency exchanges that enables one to carry out online crypto-transactions with anyone without the restrictions or governmental rules or third party allowance. There is no need for an intermediary is Decentralized Exchanges.
Centralized Exchanges
These are the types where you need a third party before you could be enabled to do buy or selling of cryptocurrency online. In centralized exchanges, investors always creates an order for his/her buying and selling for every transaction that hold a third party.

Differences between Decentralized and Centralized Exchanges

Decentralized Exchanges	Centralized Exchanges.
The trade features like spot, margin and futures trading are not there.	There are trading options with the features like spot margin and future trading.
In Decentralized exchange, people buy and sell very fast with little transaction fee on low balance.	In Centralized exchange the reverse is the case. It's slow and Stiff because of low balance.
In Decentralized exchange, traders/investors don't have to go get bothered about KYC verification before they can carry out transactions.	In Centralized exchange, users must first carry out their KYC verification to authenticate their profile due to the high level of security abnormalities.
There's no need for third party or governmental approval before you carry out any transactions.	It's a constant for the involvement of thirsd parties before transaction would start off.

source

My 2 Best Centralized Exchanges of 2021

Poloniex
Poloniex was founded early 2013, then it came into limelight after having the ability of polarizing names in digital asset exchanges. Poloniex created a good relationship with users and assured it's users with so much transaction security..Like literally you can't transact each step without a security acceptance. Poloniex is the most accessible cryptocurrency exchange that gives a wide variation of digital assets and it's one of the best exchange that I have used.Poloniex guarantees a lot of customer to store offline because of their storage structure. It limits the risk and exposure of hackers and other threats online.I mostly use it for exchanges TRX / BTC.

Binance
• This is a Centralized exchange where users can trade cryptocurrencies of any choice. It stipulates crypto wallet for storing of digital funds for its users. Binance has its own token currency that was created July 2017 - Binance Coin (BNB). It also has supporting programs which helps it's traders or users to make good investment decisions. It came into limelight in the year 2017 and has since been so relevant.

<centerMetamask Installation

I will be using Uniswap for my installation illustration.

=> Go to your google play store and search for Uniswap Exchanges Wallets

=> Click in Metamask, click install (it's just 25megabyte), then click open.



=> Click on create new wallet

Honestly I wasn't permitted to make screenshot with my phone from this point but I will still list the guidelines
=> Carefully input your new strong password and re-input it again for affirmation
=> Click "I have read the terms" and"Create".
=> Copy out your 12 backup phrase offline and keep it safe where only you can reach out to it.
=> Insert your phrase in the right order from 1 - 12 then click confirm.

I was then allowed to make screenshots from here
=> You will receive a welcome message about your wallet being created and as well a guidance on how the Wallet functions.

I wasn't allowed to make screenshots again
=> Click on search (Uniswap).
=> Click on connect. It will connect to your metamask.

The above images where made by my vivo phone tho it restricted me from taking screenshots of the complete process but I believe I've explained it in a written format

How to use Uniswap exchange , and Swap/buy or swap/sell any coin (practicle step by step )

Using Trust Wallet As Illustration Cause I've It Installed In My Mobile Phone Already

• Open my Trust Wallet.

• Go to DApp.

• Visit Uniswap DApp.


• Connect Wallet...tho mine is already connected to Trust Wallet

• Select a Token you are swapping to.
I chose to swap ETH => 1INCH
• Input the amount of ETH you want.
**[The equivalent of 1INCH is shown below To.
• Click "Swap".

Your transaction will go smoothly and enter the destination wallet if you have sufficient balance but if you glanced on mine, you'll find out that I don't have sufficient balance.

Conclusion

I prefer Decentralized Exchange because has a much preferable transaction methods compared to Centralized Exchanges where there are laws to abide before a transaction can be approved.
Thank you professor @yousafharoonkhan for the lectures and task given and I hope to be in your next class

Best Regards ❤️❤️❤️