A system administrator is troubleshooting a slow server and notices that a custom application process appears to be stuck. The application is supposed to write a large amount of data to a network-attached storage (NAS) device. The process is not consuming any CPU cycles but is unresponsive to signals. The administrator uses the ps aux command to investigate. Which process state code in the STAT column indicates that the process is in an uninterruptible sleep, likely blocked while waiting for an I/O operation?
The correct answer is D. In the output of the ps command, the D state code represents an uninterruptible sleep. This state is most commonly seen when a process is blocked waiting for an I/O operation, such as reading from or writing to a disk or network storage, and it cannot be interrupted by signals.
S represents an interruptible sleep, where the process is waiting for an event to complete but can still be woken up by a signal.
Z represents a zombie or defunct process, which has completed execution but is still in the process table waiting for its parent process to read its exit status.
R means the process is either running or on the run queue, ready to be executed.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is an uninterruptible sleep in Linux?
Open an interactive chat with Bash
How do you use `ps aux` to identify process states?
Open an interactive chat with Bash
Why do I/O operations block processes in Linux?
Open an interactive chat with Bash
CompTIA Linux+ XK0-006 (V8)
Troubleshooting
Your Score:
Report Issue
Bash, the Crucial Exams Chat Bot
AI Bot
Loading...
Loading...
Loading...
Pass with Confidence.
IT & Cybersecurity Package
You have hit the limits of our free tier, become a Premium Member today for unlimited access.
Military, Healthcare worker, Gov. employee or Teacher? See if you qualify for a Community Discount.
Monthly
$19.99
$19.99/mo
Billed monthly, Cancel any time.
3 Month Pass
$44.99
$14.99/mo
One time purchase of $44.99, Does not auto-renew.
MOST POPULAR
Annual Pass
$119.99
$9.99/mo
One time purchase of $119.99, Does not auto-renew.
BEST DEAL
Lifetime Pass
$189.99
One time purchase, Good for life.
What You Get
All IT & Cybersecurity Package plans include the following perks and exams .