Linux Troubleshooting: Permissions, Processes and Disks

Linux Troubleshooting: Permissions, Processes and Disks

Answer 15 questions randomly selected from a bank of 40. Choose one best answer per question. Pass with 12 correct answers. Original professional practice, not an official certification exam.
1 of 15
A large log was deleted but df still shows its space occupied. What is a plausible cause?