Question 1

A web application server contains 64GB of RAM and two swap partitions on normal harddisk drives, each with a size of 64 GB. Within the last month, the average number of usersessions on this server has grown by 20 percent. At the same time, the average usage ofRAM increased from 65 to 75 percent, while the swap space is almost not used at all. It isexpected that the number of user sessions will continue to increase by about 15 to 20percent each month. Which of the following reactions would be appropriate in response tothese observations? (Choose two.)

Options :

A : Delay any hardware upgrade until there is a significant consumption of swap space toensure an efficient usage of the available hardware

B : Create a RAID 1 device on the two swap partitions to avoid data loss in case swapspace has to be used in the future

C : Consider the installation of an additional application server to distribute the load if theexpected 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 2

On a server running the 3.4.50-11 Linux kernel, which file in the /boot directory contains thekernel 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 3

A network client has an ethernet interface (eth0) configured with an IP address in thesubnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, thatconnects this subnet to the Internet. What needs to be done on the client to enable it to usethe router as its default gateway? (Choose TWO correct answers.)

Options :

A : route add default gw 192.168.0.1 eth0

B : ifconfig eth0 defaultroute 192.168.0.1

C : ip route add default via 192.168.0.1 dev eth0

D : echo defaultroute 192.168.0.1 >> /etc/resolv.conf

E : route add defaultgw=192.168.0.1 if=eth0

Answer: A,C

Question 4

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 5

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

Confidently Practice Online with Free 201-450 Exam Cram

Buying Options: