Which value represents Execute in the permission mapping?

Which value represents Execute in the permission mapping?

• A. 1
• B. 0
• C. 2
• D. 3

Answer: (A)

Execute is represented by the value 1 because permission bits are typically assigned as read = 4, write = 2, and execute = 1. Each permission is a distinct bit, with execute being the least significant bit, so its weight is 1. When you combine permissions, you add these values (for example, read plus execute is 4 + 1 = 5, and all three is 4 + 2 + 1 = 7). The other numbers line up with the other bits: 0 means no permissions, 2 means only write, and 3 means write plus execute. So 1 is the correct value for Execute.

Execute is represented by the value 1 because permission bits are typically assigned as read = 4, write = 2, and execute = 1. Each permission is a distinct bit, with execute being the least significant bit, so its weight is 1. When you combine permissions, you add these values (for example, read plus execute is 4 + 1 = 5, and all three is 4 + 2 + 1 = 7). The other numbers line up with the other bits: 0 means no permissions, 2 means only write, and 3 means write plus execute. So 1 is the correct value for Execute.