201-450 Exam Questions
269 real 201-450 exam questions with expert-verified answers and explanations. Page 2 of 6.
- Question #51Filesystem and Devices
Which THREE statements concerning automounter are true?
autofsautomounterauto.mastermap files - Question #52Linux Kernel
What are typical targets in a makefile?
Makefilemake targetsbuild systemsoftware compilation - Question #53System Maintenance
Which single command will extract data from the file abc.tar.bz2
tarbzip2file extractionarchive management - Question #54Networking Configuration
How would you run named inside a chroot jail as user nobody and group nogroup?
BINDchroot jailnamed optionssecurity hardening - Question #55System Startup
Where should the LILO code reside, on a system with only one installation of Linux and no other operating systems?
LILOMBRbootloaderboot sector - Question #56Filesystem and Devices
The Human Interface Device (HID) is being used, which of the following represents a USB mouse connected to the PC?
USB HIDdevice filesinput devices/dev/input - Question #57System Maintenance
Select the TWO correct alternatives regarding the kill -9 command:
SIGKILLkill signalzombie processesprocess management - Question #58Linux Kernel
The server has two network cards. The driver for the first card is the module 8139too and the driver for the second card is the module ne2k-pci. How is it possible to ensure that t...
modprobekernel modulesnetwork driversmodule loading order - Question #59Networking Configuration
Which of these would be the simplest way to configure BIND to return a different version number to queries?
BINDnamed.confversion stringsecurity obscurity - Question #60System Startup
An administrator has placed an executable in the directory /etc/init.d, however it is not being executed when the system boots into runlevel 2. What is the most likely cause of thi...
init.drunlevelrc2.dsymlinks - Question #61Networking Configuration
In order to generate a pair of asymmetric keys to use during an SSH connection, please choose the correct command to use?
ssh-keygenasymmetric keysDSASSH authentication - Question #62Filesystem and Devices
Consider the following output from df -i: Filesystem Inodes IUsed IFree IUse% Mounted on /dev/md0 1966080 45044 1921036 3% / none 125731 712 125019 1% /dev none 127729 1 127728 1%...
inodesReiserFSdf commandfilesystem identification - Question #63Advanced Storage Device Administration
Why shouldn't you use the options -z and -j when using tar with a magnetic tape backup?
tartape backupcompressionpartial recovery - Question #116Networking Configuration
To check winbind functionality, you have try: wbinfo -u getent passwd What is the next action?
winbindnsswitch.confSambaname service switch - Question #117System Maintenance
Which THREE lines below are valid entries in /etc/crontab and will work properly?
crontabcron syntaxschedulingsystem tasks - Question #118Networking Configuration
Which TWO of the following wireless tools can be used to check the wireless network link quality?
iwconfigiwspywireless toolslink quality - Question #119Linux Kernel
What command is used to permanently set the options in the kernel when making a boot disk?
rdevboot diskkernel optionssystem boot - Question #120System Maintenance
What command can be used to install a Perl module ('$module') from the CPAN archive?
CPANPerl modulessoftware installationpackage management - Question #121203 System Startup
When bash is invoked as an interactive login shell, which of the following sentences is true?
bash initializationlogin shell/etc/profileshell startup files - Question #123205 Advanced Storage Device Administration
What is the minimum number of disks required in a RAID5 array?
RAID5minimum disksRAID configuration - Question #124201 Capacity Planning
A server has three disks of 80GB each and must manage a database with 4 million records of 30KB each. The best configuration for this server, with the criteria being performance, c...
LVM over RAID5storage planningdatabase performancecapacity design - Question #125205 Advanced Storage Device Administration
The correct command sequence to create logical volumes on a Linux system is:
LVMpvcreatevgcreatelvcreate - Question #126205 Advanced Storage Device Administration
What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a spare?
RAID5usable spacehot sparedisk capacity calculation - Question #127205 Advanced Storage Device Administration
You decide to use the logical volume manager (LVM) to manage four 4GB disk drives. After creating the volume group, how would you create a 10GB logical volume called big-app?
lvcreatelogical volumeLVM commandslvcreate syntax - Question #128205 Advanced Storage Device Administration
What is the purpose of vgextend?
vgextendvolume groupLVMphysical volume - Question #129205 Advanced Storage Device Administration
Which RAID level provides the most redundancy?
RAID levelsredundancyRAID1RAID comparison - Question #130205 Advanced Storage Device Administration
Which pseudo-file contains information on the status of software RAID devices?
/proc/mdstatsoftware RAIDRAID statusmdadm - Question #132207 System Maintenance
The user' quotas on the server were reduced from 200MB to 100MB. Besides sending emails to all users, it was requested that a message should communicate the change every time a use...
/etc/motdlogin messagesystem notificationuser communication - Question #133203 System Startup
A GRUB boot loader installed in the MBR was accidentally overwritten. After booting with a rescue CD-ROM, how can the lost GRUB first stage loader be recovered?
GRUB recoveryMBRgrub-installboot loader - Question #134203 System Startup
Why is the root file system mounted read-only during boot and remounted with write permission later on?
root filesystemread-only mountfsckboot sequence - Question #135207 System Maintenance
Following the instructions contained in the README file of an application, the make command was executed but the following message was displayed on the screen: Make: *** No targets...
make commandMakefilesource compilationbuild system - Question #136202 Linux Kernel
It is possible to configure kernel parameters at runtime (e.g. the maximum size of the shared memory segment (shmmax)). In which TWO ways can this be changed to 2GB (2147483648 Byt...
sysctlkernel parameters/proc/sys/kernelshmmax - Question #137207 System Maintenance
To make a system backup, the simplest and fastest way is to use the tar command. Select the correct alternative below that shows the three tar parameters that create, list and expa...
tarbackuparchivetar parameters - Question #138203 System Startup
A Linux machine freezes during boot. To boot directly to a shell prompt so that editing of files and manual starting of services is possible which command line must be passed to th...
kernel boot parametersinit=/bin/bashsingle user moderescue boot - Question #139206 Networking Configuration
Which ONE of the following wireless tools can be used to check the wireless network link quality?
iwconfigwireless toolslink qualitywifi - Question #140206 Networking Configuration
A network client has an ethernet interface configured with an IP address in the subnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this...
default gatewayroute commandIP routingnetwork client - Question #141206 Networking Configuration
What two commands to add another IP address to an interface that already has (at least) one IP address?
ifconfigIP aliasvirtual interfacesecondary IP - Question #142206 Networking Configuration
Which of these tools can provide the most information about DNS queries?
digDNS queriesDNS toolsname resolution - Question #143Filesystem and Devices
What is the purpose of udevmonitor?
udevudevmonitorkernel eventsdevice monitoring - Question #144Filesystem and Devices
What is the term for unmounting a filesystem, which cleans up all references to the filesystem, as soon as it is not in use any longer?
lazy unmountumountfilesystemmount options - Question #145Filesystem and Devices
Which system files are updated as devices are mounted and unmount to provide information on the mounted devices and the options used? (Please specify TWO answers)
/etc/mtab/proc/mountsmount trackingfilesystem - Question #146System Startup
On a Debian based system, which command can be used to stop the apache2 init script from running at boot time once the real script has been removed from /etc/init.d/?
update-rc.dinit scriptsDebianboot runlevel - Question #147Linux Kernel
Which command could be used to see the kernel messages created from the boot time until now?
dmesgkernel ring bufferboot messageskernel messages - Question #148Networking Configuration
A zone file on the DNS server has been updated. Which of the following commands will tell named to reload its zone files? (Please select TWO correct answers)
BINDrndc reloadDNS zonenamed - Question #149Advanced Storage Device Administration
Which hdparm command-line options will set an IDE hard disk to use both DMA and 32-bit I/O support?
hdparmDMAIDE disk32-bit I/O - Question #150Advanced Storage Device Administration
Which of the following applications utilize the device mapper? (Select TWO correct answers)
device mapperLVM2EVMSstorage abstraction - Question #151Linux Kernel
Why has mkinitrd been deprecated in favour of mkinitramfs in 2.6 series kernels? (Select TWO correct answers)
mkinitrdmkinitramfsdevfsinitrd - Question #152System Startup
A Linux server is running in single user mode, but the problem that existed before is now fixed. What command is most appropriate to restore the server to service?
telinitrunlevelsingle user modesystem recovery - Question #153Capacity Planning
The swap usage on a system needs to be checked. Which TWO commands can be used to display a swap usage summary?
swapswapon/proc/swapsmemory management - Question #154Linux Kernel
To remove the patch patch-2.4.28.tar.bz2 from a kernel source tree, the command that must be used is:
kernel patchpatch -Rbunzip2kernel source