Greetings to you and welcome to my achievement 2 post on the basic security on steem.

Question 1.
Have you retrieved all your keys on steemit?

Yes, I most certainly have. After signing up for steemit, I was told by @rosita-nkefor to download my keys and save them very securely.
So, I downloaded the file that holds my keys and I backed up on my Google Drive.

Question2
Do you know each of these key functions and restrictions?

Yes, I do know all these keys' functions and I will start in descending order in order of importance.

Source

Master password
The master password is probably the most important of all the keys. This is because, it can be used to generate all the other keys including the owner key which performs thesame functions. This master password is given to you when you sign up for steemit and it should always be stored safely.
The main function of your master password is to recover your account.

Owner key
The owner key is the most powerful key and its function is to recover all the other keys and used only in times of account recovery.
It should be used only during situations of certain need - compromised account.

Active key
The active key is used mainly for transactionary purposes such as transferring funds, converting SBD, powering down or powering up etc.
It is also used in placing market orders and updating profile settings.

Posting key
The posting key is used to login daily into accounts in order to prevent passwords from being conpromised.
It is also used to comment, upvote, downvote, mute accounts, edit posts, resteem and post.

Memo key
The memo key has as function to decrypt private transfer memos.

Question 3
How do you plan to keep your master password?

I have secured my master password by uploading it to my Google Drive. Not just that, I have also written it down in my notebook and it is stored on both the internal storage devices of my phone and my laptop.

Question 4
Do you know how to transfer your steem token to another steem user account?

Yes, I do.
Firsty, open your wallet.

Then, tap the drop down arrow below the steem token and select transfer.

After that u may now enter the username of the account which you want to send the steem to.
And from the image below, it is in the highlighted part.

U may now select the amount of steem which u want to send.
The highlighted part of the image below illustrates that.

And u may now input the memo and click next.
That is all about sending the steem token to a steemit user.

Question 5
Do you know how to power up your STEEM?

Yes, I know how to powerup my steem and I will explain it in the following images.

Firstly, open your wallet, then tap on the dropdown arrow below your steem token and select power up.

Next, you enter the amount of steem you wish to power up and click on next.

Now, login with your active key to finalize the transaction.

Well, that concludes how u can powerup.

Conclusion

That was interesting to write about and I hope I answered all the questions with accuracy.
Please leave comments😁

This is my Achievement 1 post. Task; introduce yourself.