Correct Read, Write, Execute Permission Symbol for Linux OS ? *5 pointsa) rwxb) wrxc) rwed) r-w-x

1. Break Down the Problem

To determine the correct symbol representation for read, write, and execute permissions in Linux, we need to understand what each letter represents.

2. Relevant Concepts

In Linux file permissions, the following symbols are used:

• r: Read permission
• w: Write permission
• x: Execute permission
• -: Represents no permission for the respective action

3. Analysis and Detail

• The notation for file permissions is typically structured as a three-character string indicating owner, group, and other permissions.
• The permissions may vary (for example, the owner may have read and write permissions, but not execute).
• The usual valid representations include combinations where r, w, and x are present, along with - for any missing permission.

4. Verify and Summarize

Each of the options can be analyzed:

• a) rwx: Represents read, write, and execute permissions fully. This is valid.
• b) wrx: This switches the order and omits the read permission as it's not standard. This is not typically used.
• c) rwe: This omits execute permission, making it incomplete as well.
• d) r-w-x: This includes dashes, which are valid for incomplete permissions but not standard representation.

Final Answer

The correct representation for read, write, and execute permissions in Linux is a) rwx.