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201-450 Questions and Answers

Question # 6

Which of the following terms are used to describe 3.x kernel releases? (Choose TWO correct answers.)

A.

beta

B.

final

C.

longterm

D.

prerelease

E.

stable

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Question # 7

Which of the following files will be looked for and used by GNU make, if one of them exists, unless a different file is specified on the command line when trying to compile software from source code? (Choose TWO correct answers.)

A.

configure

B.

config.h.in

C.

makefile

D.

Makefile

E.

Makefile.in

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Question # 8

Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

A.

Amanda

B.

Bacula

C.

DrBackup

D.

BREWBackup

E.

SARcheck

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Question # 9

Which of the following commands will securely copy the directory ./fyf/ to /var/tmp/ on the remote host deltaur using the remote user account kevin?

A.

rsync -a -e ssh kevin@deltaur:/var/tmp/ fyf/

B.

rsync -a -u kevin -e ssh fyf/ deltaur:/var/tmp/

C.

rsync -a -u kevin -e ssh deltaur:/var/tmp/ fyf/

D.

rsync -a -e ssh fyf/ kevin@deltaur:/var/tmp/

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Question # 10

Which of the following wireless tools can be used to check the wireless network link quality? (Choose TWO correct answers.)

A.

iwconfig

B.

iwlink

C.

iwscan

D.

iwifi

E.

iw

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Question # 11

Which /etc/hosts.allow entries will permit access to sshd for users from the 192.168.1.0/24 subnet? (Choose TWO correct answers.)

A.

sshd : 192.168.1.

B.

sshd : 192.168.1

C.

sshd : 192.168.1.0 netmask 255.255.255.0

D.

sshd : 192.168.1.0/255.255.255.0

E.

sshd : 192.168.1.0

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Question # 12

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

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.

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Question # 13

If all of the following files and/or symlinks exist in a SysV-init runlevel directory, which of the following will be executed first when booting the system directly into the runlevel?

A.

S99lpi

B.

K99lpi

C.

PRE-S99lpi

D.

S98lpi

E.

S99a-lpi

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Question # 14

In the following output, what is the 5 minute load average for the system?

# uptime

12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

A.

0.47

B.

24.71

C.

35.31

D.

There is no 5 minute interval. It is some value between 0.47 and 24.71.

E.

There is no 5 minute interval. It is some value between 24.71 and 35.31.

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Question # 15

In the following output from top, which processes contribute to the percentage of time that the CPU spends in the state of wa?

Tasks: 193 total, 1 running, 190 sleeping, 2 stopped, 0 zombie

Cpu(s): 0.5%us, 0.3%sy, 0.0%ni, 98.2%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st

A.

Processes waiting for user interaction.

B.

Processes that were already closed and are waiting to be launched again.

C.

Processes that have not been scheduled yet because they haven't been fully loaded into RAM or are in swap.

D.

Processes waiting for IO operations to complete.

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Question # 16

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

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

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Question # 17

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

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

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Question # 18

Which RAID level value must be used with Linux software RAID in order to create an array of mirrored devices?

A.

1

B.

5

C.

6

D.

container

E.

mirrorstripe

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Question # 19

Which files are updated as devices are mounted and unmounted to provide information on the currently mounted devices and the options used? (Choose TWO correct answers.)

A.

/proc/dtab

B.

/etc/mtab

C.

/etc/fstab

D.

/proc/mounts

E.

/proc/devices

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Question # 20

Which of the following is a CD-ROM filesystem standard?

A.

OSI9660

B.

ISO9660

C.

SR0FS

D.

ISO8859

E.

ROM-EO

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Question # 21

Which directory in /dev/disk/ can be used to determine the UUID of a connected hard disk?

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Question # 22

Which of the following properties should be recorded in order to monitor the quality of a network link? (Choose two.)

A.

Bandwidth in both directions

B.

Number of nodes using the link

C.

Effective Latency

D.

Number of IPv4 and IPv6 packets

E.

Number of used TCP ports

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Question # 23

What is the purpose of an initramfs during the Linux system start?

A.

It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel

B.

It moves the kernel from normal system memory to initram memory to speed up kernel access

C.

It copies the root file system’s content to RAM to speed up the system and reduce writes to disk

D.

It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk

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Question # 24

Which of the following commands lists IPv4 addresses and MAC addresses of network nodes that the local system has seen on its directly connected IP networks?

A.

arp

B.

ifconfig

C.

ipadm

D.

iwlist

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