201-450 Free Practice Test

What is the correct parameter to pass to the kernel at boot time to force it to use only one of the available processors?

1. A. maxcpus=1
2. B. usecpus=1
3. C. smpcpus=1
4. D. vcpumx=1

Correct Answer: A

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)
Solution:
/usr/src/linux, /usr/src/linux/

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

Which of the following are common Linux filesystem types used for root partitions? (Choose THREE correct answers.)

1. A. ext4
2. B. VFAT
3. C. NTFS
4. D. XFS
5. E. Btrfs

Correct Answer: ADE

In the below example output, which columns detail the percent of time the CPU spent running non-kernel code and the percent of time the CPU spent running kernel code? (Choose TWO correct answers.)
# vmstat 1 100
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0
0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

1. A. id
2. B. us
3. C. wa
4. D. sy

Correct Answer: BD

Which of the following commands creates a Btrfs subvolume named volume in/mnt?

1. A. btrfs subvolume add –n volume /mnt
2. B. btrfs create subvolume /mnt volume
3. C. btrfs-subvolume create /mnt/volume
4. D. btrfs subvolume new volume /mnt
5. E. btrfs subvolume create /mnt/volume

Correct Answer: E