Question 1

What happens if the Linux kernel can't mount the root filesystem when booting?

Options :

A : An error message is shown and the administrator is asked by the kernel to specify a valid root filesystem to continue the boot process.

B : An error message is shown and the system reboots after a keypress.

C : An error message is shown and the system boots in maintenance mode.

D : An error message is shown showing which device couldn't be mounted or informing that init couldn't be found.

E : An error message is shown stating that the corresponding kernel module couldn't be loaded.

Answer: D

Question 2

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

Options :

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

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

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

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

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

Answer: B

Question 3

In this example output, which descriptions match the purpose of the free, buff and cache

columns? (Choose THREE 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

Options :

A : Used swap space

B : RAM available for filesystem buffers

C : Available free RAM

D : RAM used for buffers

E :

RAM used for filesystem cache

Answer: A,C,D

Question 4

On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains the

kernel configuration parameters?

Options :

A : config-linux-3.4.50-11

B : config-3.4.50-11

C : system-3.4.50-11

D :

vmlinuz-3.4.50-11

E :

rc.config-3.4.50-11

Answer: B

Question 5

Which archive format is used to create an initramfs image?

Options :

A : gzip

B : tar

C : RAR

D : cpio

E : bzip2

Answer: D