Asssalam-o-Alaikum!,hope you're doing fine. After my introductory post that was achievement 1 now I'm posting my achievement 2 that is I have to answer following questions and explain all about different keys of #steemit.
So lets answer these questions.

1.Have you retrieve all keys on steemit?
YES , I have retrieve all keys on steemit and also downloaded and saved the pdf.

2. Do you know each of the key functions and restrictions?
Yes, I know the functions and restrictions of all the keys that are;

(i) Master key:
It's the most important key. Through this key we generate special type of password in order to keep it private and secure as if someone has access to this key they can misuse or steal your account.

(ii) Posting key:
This keys is use to log in the account. Through this key we can post , vote , comment , edit and resteem.

(iii) Memo key:
Memo key is use to encrypt and decrypt private messages so we can send private messages when transfering steem securely.

(iv) Owner key:
The features of the master key are really similar to the master key. This key help you to recover your account in case it's not in secure hands.

(v) Active key:
This key is use to login our account as well as wallet operations such as power up transactions , converting SD, transferring funds and update profile settings can be performed through this key.

3. How you plan to keep your master password?
I've downloaded the pdf in my phone and saved my password in my google account and internal storage as well.

4. Do you know how to transfer your steem token to another account?
Yes, I know and I've explained the process below.

First login to your wallet.

Cick on the down arrow steem, select the transfer option.

A pop-up will appear, fill the required info.

5. Do you know how to power up your steem ?
Yes, I know and I've explained the process below,
First click the down steem option and select the power option.

now enter the amount you want to convert and click on the power up.

The process is completed now
I have answered all the questions.
Thank you for readings :)
Special thanks to
@steemit
@vvarishayy