I need to understand those questions. Your correct answer will help me out. Thank you.

Question 6 0/1 point Enter the entire command line to complete the following task: Assume you are NOT in your homedirectory. You have a file called abc.txt in your present working directory (pwd). What would you type at a command line to give the owner read, write and execute permissions, group no permissions, and others no permissions. NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc. Question 8 0/1 point By default, when a new directory is created, how are owner and group permissions assigned? (The permissions are: drwxr-xr-x, but WHO are the permissions assigned to?) The user who has root level access The user who is listed in the group membership first The user who created the directory The user who logs in as linuxadmin Question 4 0/1 point Enter the entire command line to complete the following task: Using the "find" command, what would you type at a command line to find any file that has .ps extension in your current directory? NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc. Question 2 (1 point) Listen Enter the entire command line to complete the following task: Assume you have a group account called "sales". Also assume you have a directory called products. Change group ownership, including all subfiles and subdirectories of the products directory to the sales group. NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc. HINT: You may need root permissions A Question 5 0 / 1 point Enter the entire command line to complete the following task: Using the "find" command, find files that are only three characters long with an extension of .ps in your current directory (for example, your result would display abc.ps). NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc. Answer: find name 727 Question 9 0 / 1 point Enter the entire command line to complete the following task: Assume you are in your homedirectory. Copy all files that begin with ol to your desktop. NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc