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QUESTION: 72

Which single command will simulate a failed device within a RAID 5 array?

mdadm --remove /dev/md0 /dev/sdd1
mdadm --zero-superblock /dev/sdf3
mdadm --force-fault /dev/md2 /dev/sde2
mdadm --fail /dev/md0 /dev/sdc1
mdadm /dev/md0 --offline /dev/sdc1

Answer(s): D

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QUESTION: 73

Which file in /proc contains information on the status of local software RAID devices?

/proc/raidstat
/proc/mdstat
/proc/raidstatus
/proc/mdstatus
/proc/raid/status

Answer(s): B

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QUESTION: 74

Which of the following best describes the format of the /etc/fstab file?

device name; filesystem type; mount point; mount options; dump filesystem; fsck order
device name; mount point; filesystem type; mount options; dump filesystem; fsck order
device name; mount point; mount options; filesystem type; dump filesystem; fsck order
mount point; filesystem type; device name; mount options; dump filesystem; fsck order
mount point; device name; filesystem type; mount options; dump filesystem; fsck order

Answer(s): B

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QUESTION: 75

Due to extreme system use, a Linux system requires some additional swap space. To initialize 5GB of additional swap space, which combination of commands should be used?

dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; mount /tmp/swapfile
dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; swapon /tmp/swapfile
touch -5G /tmp/swapfile; swapon /tmp/swapfile
mkswap /tmp/swapfile 512000; swapon /tmp/swapfile

Answer(s): C

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