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Share some Linux+ XK0-004 exam questions and answers below.
A technical support engineer receives a ticket from a user who is trying to create a 1KB file in the /tmp directory and is getting the following error No space left on device. The support engineer checks the /tmp directory, and it has 20GB of free space.
Which of the following BEST describes a possible cause for this error?
A. The /tmp directory is not mounted.
B. The filesystem is formatted with a 4MB block size.
C. the filesystem ran out of inodes.
D. The /tmp directory has been set with an immutable attribute.
Answer: C
Which of the following can be used to boot a DVD from a remote device to initialize a Linux system setup on bare metal hardware as if it is a local DVD?
A. UEFI
B. PXE
C. NFS
D. GRUB
Answer: A
After starting a long-running script, a systems administrator needs to verify the frequency of what is filling up the /var partition and kill it because it is consuming too much space.
Which of the following is the correct sequence given only a terminal is available?
A. 1. CTRL-C2. bg3. watch df /var4. CTRL-C5. fg6. CTRL-Z
B. 1. CTRL-C2. fg3. watch df /var4. CTRL-Z5. bg6. CTRL-Z
C. 1. CTRL-Z2. bg3. watch df /var4. CTRL-C5. fg6. CTRL-C
D. 1. CTRL-Z2. bg3. watch df /var4. CTRL-Z5. fg6. CTRL-C
Answer: D
An administrator receives a warning about a file system filling up, and then identifies a large file located at /tmp/largelogfile. The administrator deletes the file, but no space is recovered on the file system.
Which of the following commands would BEST assists the administrator in identifying the problem?
A. lsof | grep largelogfile
B. pkill /tmp/largelogfile
C. pgrep largelogfile
D. ps –ef | grep largelogfile
Answer: A
Which of the following BEST describes running on a Linux system?
A. Containers only need the namespaces functionally to run on a Linux system available since kernel 2.6.
B. Containers need a hypervisor to run a Linux system. Cgroups namespaces are functionalities used for the kernel but not for running containers.
C. Containers only need the cgroups functionality for running on a Linux system. Namespaces is not a Linux kernel functionality needed for creating and managing containers.
D. Containers use the cgroups and namespaces functionalities to isolate processes and assign hardware resources to each of those isolated processes.
Answer: D
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