Bird
0
0

What does the numeric permission mode 755 mean for a file in Linux?

easy📝 Conceptual Q11 of 15
Linux CLI - File Permissions and Ownership
What does the numeric permission mode 755 mean for a file in Linux?
AUser can read, write, execute; group and others can read and execute
BUser can read and write; group and others can only read
CUser, group, and others can read, write, and execute
DUser can read and execute; group and others have no permissions
Step-by-Step Solution
Solution:
  1. Step 1: Understand numeric permission digits

    Each digit represents permissions for user, group, and others respectively. 7 means read(4)+write(2)+execute(1)=7, 5 means read(4)+execute(1)=5.
  2. Step 2: Decode 755

    User (7) has read, write, execute; group (5) and others (5) have read and execute only.
  3. Final Answer:

    User can read, write, execute; group and others can read and execute -> Option A
  4. Quick Check:

    755 = rwx r-x r-x [OK]
Quick Trick: 7 means full rights; 5 means read+execute only [OK]
Common Mistakes:
MISTAKES
  • Confusing 5 with write permission
  • Thinking 7 means read+write only
  • Mixing group and others permissions

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Linux CLI Quizzes