performance
easy
Apply
background
2 points
Question 20. CSCD240-E1-A
Execute firefox and allow the shell to be used for other activities.
Work the drill
Answer on paper or in a terminal before revealing the ideal answer.
Ideal answer
firefox &
Acceptable alternatives: ["nohup firefox &"]
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.
firefox
Misconception. Foreground only — blocks the shell.
Remedy. Teach "& = run in background".
Authority mappings
Hover any chip for the mapping justification; click to open the authority record.
DCWF roles:
IT-451 System Administrator
DCWF tasks:
T0501
KU outcomes:
CD-BSP-O1
Course-artifact links
Lectures
- CSCD240-S26-L08. Pipes, filters, grep, sort, uniq, wc, tar
Lab questions
- CSCD240-S26-LAB6: Run a long command with &. Use jobs, fg, bg.