short_answer
easy
Remember
permissions
2 points
Question 4. CSCD240-E1-A
Given -rw-r-x--x 2 ssteiner faculty 4096 Apr 14 09:30 notes.sh — what does the - as first symbol mean?
Work the drill
Answer on paper or in a terminal before revealing the ideal answer.
Ideal answer
Regular file (not a directory, not a symlink, not a special device).
Misconception bank
Each row below is a plausible wrong answer, the thinking that produces it, and the remedy that corrects the misconception. These are the foundation of the multiple-choice framing and the targeted feedback a student receives after answering.
Missing/unknown
Misconception. Student reads the dash as "nothing there" rather than as a file-type indicator.
Remedy. Draw the 10-char permission template: [type][owner][group][other]. Practice file-type char naming.
Executable
Misconception. Confuses file-type with exec permission.
Remedy. Separate concepts: type char (pos 1) vs. exec bit (pos 4, 7, 10).
Authority mappings
Hover any chip for the mapping justification; click to open the authority record.
DCWF roles:
IT-451 System Administrator
DCWF tasks:
T0144
KU outcomes:
CD-OSC-O3
KU topics:
CD-OSC-T8
O*NET tasks:
SOC 15-1212.00: task 6SOC 15-1212.00: task 7SOC 15-1244.00: task 1SOC 15-1244.00: task 2
NCAE errors:
SMB Login / failure: SMB operation failed: [Errno.SMB Read / failure: SMB operation failed: [Errno .WWW Content / failure: Failed to connect to hostWWW Content / timeout: TimeoutWWW Content / failure: Website cannot be reachedSMB Read / partial: SMB operation failed: Failed .SMB Login / failure: SMB operation failed: [Errno.SMB Read / failure: SMB operation failed: [Errno .SMB Login / failure: SMB connection failed: proto.
Course-artifact links
Lectures
- CSCD240-S26-L05. Permissions part 1: ls -l anatomy, rwx, file types
Lab questions
- CSCD240-S26-LAB3: Given 5 ls -l lines, identify file type, owner/group/other perms.