Question 1

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

Options :

A : mdadm --remove /dev/md0 /dev/sdd1

B : mdadm --zero-superblock /dev/sdf3

C : mdadm --force-fault /dev/md2 /dev/sde2

D : mdadm --fail /dev/md0 /dev/sdc1

E : mdadm /dev/md0 --offline /dev/sdc1

Answer: D

Question 2

The correct command sequence to create and mount logical volumes on a Linux system is:

Options :

A : lvcreate, pvcreate, vgcreate, mkfs, mount

B : pvcreate, vgcreate, lvcreate, mkfs, mount

C : vgcreate, lvcreate, pvcreate, mount, mkfs

D : mkfs, pvcreate, vgcreate, lvcreate, mount

E : pvcreate, lvcreate, vgcreate, mkfs, mount

Answer: B

Question 3

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 4

A web application server contains 64GB of RAM and two swap partitions on normal hard

disk drives, each with a size of 64 GB. Within the last month, the average number of user

sessions on this server has grown by 20 percent. At the same time, the average usage of

RAM increased from 65 to 75 percent, while the swap space is almost not used at all. It is

expected that the number of user sessions will continue to increase by about 15 to 20

percent each month. Which of the following reactions would be appropriate in response to

these observations? (Choose two.)

Options :

A :

Delay any hardware upgrade until there is a significant consumption of swap space to

ensure an efficient usage of the available hardware

B :

Create a RAID 1 device on the two swap partitions to avoid data loss in case swap

space has to be used in the future

C :

Consider the installation of an additional application server to distribute the load if the

expected growth continues over several months

D : Move the web application’s scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

E : Update the hardware to increase the amount of available RAM to avoid using swap space

Answer: A,C

Question 5

What should be done to ensure a client machine uses the recursive nameserver running on

the IP address 192.168.0.1? (Choose TWO correct answers.)

Options :

A : Add nameserver 192.168.0.1 to /etc/resolv.conf.

B : Run route add nameserver 192.168.0.1.

C :

Run ifconfig eth0 nameserver 192.168.0.1.

D : Ensure that the dns service is listed in the hosts entry in the /etc/nsswitch.conf file.

E : Run bind add nameserver 192.168.0.1.

Answer: A,D

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