Hardwareand Device ConfigurationQuestions
1. Which process types are supported by Red Hat Enterprise
Linux?a. Intel and AMD x86 32 bit processorsb. Intel and AMD x86 64
bit processorsc. IBM s/390 processorsd. IBM series Z processorse.
All of the above
2. The /proc filesystem provides what function?a. It provides
multiprocessing (SMP) support for the Linux kernel.b. It provides
support for larger than 4GB of memory installed in the system.c. It
provides space for memory swap (paging).d. It provides an interface
for humans to view information in the kernel.e. None of the
above
3. What is an expected device name for a USB drive on a system
?a. /dev/hdbb. /dev/ubbc. /dev/sdbd. /dev/usbbe. None of the
above
4. Which file contains a snapshot of the kernel's dmesg buffer
soon after the most recent boot?a. /var/log/messagesb.
/var/log/boot.logHardware Overviewrha130-6.1-1 12 Copyright 2011,
Red Hat Inc.c. /var/log/dmesgd. /var/log/kloge. None of the
above
5. Which command displays the current contents of the kernel's
dmesg buffer?a. klogb. kmesgc. kdumpd. dloge. None of the above
6. What command can be used to monitor hardware changed
dynamically?a. monitor -hwb. lshwc. watchhwd. hwmonitore. lshal
m
Use the following transcript to answer the next 4
questions.[root@station root]$ cat /proc/cpuinfoprocessor :
0vendor_id : GenuineIntelcpu family : 6model : 8model name :
Pentium III (Coppermine)stepping : 3cpu MHz : 797.435cache size :
256 KBfdiv_bug : nohlt_bug : nof00f_bug : nocoma_bug : nofpu :
yesfpu_exception : yescpuid level : 2wp : yesflags : fpu vme de pse
tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr
ssebogomips : 1592.52[root@station root]$ cat
/proc/meminfoMemTotal: 255184 kBMemFree: 52280 kBBuffers: 24436
kBCached: 90608 kBSwapCached: 6532 kB...SwapTotal: 521632
kBSwapFree: 504940 kB[root@station root]$ cat
/proc/scsi/scsiAttached devices:Host: scsi0 Channel: 00 Id: 00 Lun:
00Vendor: ATA Model: ST9500325AS Rev: 0005Type: Direct-Access ANSI
SCSI revision: 05Host: scsi1 Channel: 00 Id: 00 Lun: 00Vendor: hp
Model: DVDRAM GT30L Rev: mP04Type: CD-ROM ANSI SCSI revision:
05Host: scsi4 Channel: 00 Id: 00 Lun: 00Vendor: SanDisk Model:
Cruzer Mini Rev: 0.2Type: Direct-Access ANSI SCSI revision: 02
7. In general terms, what is the speed of the processor?a. 800
megahertzb. 256 megahertzc. 1.6 gigahertzd. Not enough information
is provided.e. None of the above
8. In general terms, how much memory is installed on the local
machine?a. 256 kilobytesb. 128 megabytesc. 256 megabytesd. 512
megabytese. None of the above
9. How many USB disks are attached to the machine?a. 0b. 1c. 2d.
3e. Not enough information is provided.
10. Who manufactured the CDROM drive?a. ATAb. SANDISKc. Inteld.
HPe. Not enough information is provided.
Questions1. In what directory are kernel modules found?a.
/lib/modules/kernel-version/b. /boot/modules/c.
/usr/share/kernel-version/modules/d. /var/lib/modules/
2. What command is used to request the removal of a module?a.
depmod -xKernel and Kernel Modulesrha130-6.1-1 22 Copyright 2011,
Red Hat Inc.b. modules -rc. modprobe -rd. rm /proc/modules
An administrator attempts to remove a module by running the
following command.
[root@station root]# modprobe -r cdromcdrom: Device or resource
busy
3. Which of the following would be a conventionally named static
kernel image?a. /boot/image-2.6.32-8b. /boot/zimage-2.6.32-8c.
/boot/vmlinux-2.6.32-8d. /boot/vmlinuz-2.6.32-8e. None of the
above
4. Which of the following could be a reason that the module
cannot be removed?a. The module's usage count is greater than 0.b.
The module is depended on by another module which is in use.c. Once
a modules is inserted into the kernel, it cannot be removed.d. A or
B
5. What command is used to list all currently inserted kernel
modules?a. depmod -lb. modulesc. lsmodd. cat /proc/kmod
6. Which command can be used to request the insertion of a
kernel module?a. modules -ib. modprobec. vmlinuzd. linux m
7. What configuration file is examined whenever modprobe inserts
a module?a. /etc/modprobed/*.confb. /etc/sysconfig/modulesc.
/boot/modules/modprobe.confd. /etc/modtab
8. Which file contains values for /proc/sys/ directory entries
which are set automatically atboottime?a. /etc/sysctl.confb.
/etc/proc.confc. /etc/sysconfig/procd. /etc/systab
9. After editing the file mentioned in the previous question,
what command can be run to immediatelyimplement the changes?a.
procctl -sb. kernelctl -ic. setprocd. sysctl p
10. Within the configuration file mentioned above, which of the
following lines would correctly setthe value of
/proc/sys/net/ipv4/ip_forward to 1?a. proc.sys.net.ipv4.ip_forward
= 1b. net.ipv4.ip_forward = 1c. ip_forward = 1d.
sys.net.ipv4.ip_forward = 1
Questions1. Which of the following commands conveniently lists
all connected PCI devices?a. listpcib. pcidumpc. dmesgd. kudzue.
lspci
Use the following transcript to answer the next 2
questions.[root@station root]$ cat /proc/interruptsCPU00: 29957960
XT-PIC timer1: 78565 XT-PIC keyboard2: 0 XT-PIC cascade5: 75302119
XT-PIC eth08: 1 XT-PIC rtc9: 0 XT-PIC Intel ICH 82801AAPCI
Devicesrha130-6.1-1 30 Copyright 2011, Red Hat Inc.11: 198578
XT-PIC usb-uhci, eth114: 258317 XT-PIC ide015: 20398 XT-PIC
ide1NMI: 0ERR: 0
2. About how long has the system been running (since the last
boot)?a. About 30,000 seconds (about 8 hours)b. About 20,000
seconds (about 5 hours)c. About 10,000 seconds (about 3 hours)d.
About 10 dayse. Not enough information is provided
3. What about the above output implies a misconfiguration of the
machine?a. There are no NMI interrupts reported.b. Two device
drivers are conflicting over IRQ 11.c. No device drivers have
claimed IRQ's 4-7.d. Only one CPU has been identified.e. None of
these conditions necessarily imply problems.
4. Which of the following files lists currently claimed I/O
ports?a. /etc/ioportsb. /var/log/ioportsc. /etc/sysconfig/ioportsd.
/var/state/ioportse. /proc/ioports5. Which of the following files
lists the physical addresses of currently mapped memory
(includingRAM and other devices)?a. /proc/slabinfob.
/proc/meminfoc. /proc/iomemd. /var/log/meminfoe. /etc/meminfo
Use the following transcript to answer the next 3
questions.[root@station root]$ lspci -v...00:1f.2 USB Controller:
Intel Corp. 82801AA USB (rev 02) (prog-if 00 [UHCI]).Subsystem:
Intel Corp. 82801AA USBFlags: bus master, medium devsel, latency 0,
IRQ 11I/O ports at 2440 [size=32]00:1f.5 Multimedia audio
controller: Intel Corp. 82801AA AC'97 Audio (rev 02)Subsystem:
Compaq Computer Corporation: Unknown device b1bfFlags: bus master,
medium devsel, latency 0, IRQ 9I/O ports at 2000 [size=256]I/O
ports at 2400 [size=64]01:00.0 VGA compatible controller: nVidia
Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 15)
Subsystem: nVidia Corporation: Unknown device 0017Flags: bus
master, 66Mhz, medium devsel, latency 64, IRQ 10Memory at 41000000
(32-bit, non-prefetchable) [size=16M]Memory at 44000000 (32-bit,
prefetchable) [size=32M]Expansion ROM at [disabled]
[size=64K]Capabilities: [60] Power Management version
1Capabilities: [44] AGP version 2.0...6. What IRQ is the USB
controller using?a. 32b. 9c. 10d. 11e. Not enough information is
provided
7. What I/O port base address(es) is (are) being used by the
sound card?a. The device is not using any I/O portsb. 41000000c.
2440d. 2000 and 2400e. Not enough information is provided
8. How much of the video card's memory has been mapped into the
system?a. 16 megabytesb. 32 megabytesc. 48 megabytesd. 41000000
bytese. 44000000 bytes
Use the following transcript to answer the next
question.[root@station root]$ cat /etc/modprobe.d/custom.confalias
parport_lowlevel parport_pcalias eth0 8139tooalias snd-card-0
i810_audioalias usb-controller usb-uhci
9. Which kernel module is the device driver for the network
interface card associated with theinterface eth0?a. Network
interface device drivers are always compiled into the static kernel
image.b. usb-uhcic. i810_audiod. 8139tooe. Not enough information
is provided.
10. file lists modules loaded on the system?a. /proc/devicesb.
/proc/modules/devicesc. /proc/hwd. /proc/lsmode.
/proc/hwdevices
Questions1. What two types of filesystem device nodes exist in
Linux?a. character and block device nodesb. major and minor device
nodesc. hard and soft device nodesd. hot and cold device nodese.
None of the above
Use the following transcript to answer the next 3
questions.[root@station root]$ ls -l /dev/fd?brw-rw---- 1 root
floppy 2, 0 Jan 30 2003 /dev/fd0brw-rw---- 1 root floppy 2, 1 Jan
30 2003 /dev/fd1brw-rw---- 1 root floppy 2, 2 Jan 30 2003
/dev/fd2brw-rw---- 1 root floppy 2, 3 Jan 30 2003
/dev/fd3brw-rw---- 1 root floppy 2, 128 Jan 30 2003
/dev/fd4brw-rw---- 1 root floppy 2, 129 Jan 30 2003
/dev/fd5brw-rw---- 1 root floppy 2, 130 Jan 30 2003
/dev/fd6brw-rw---- 1 root floppy 2, 131 Jan 30 2003 /dev/fd7
2. What is the length of the file /dev/fd4?a. 2 bytesb. 128
bytesc. 128 kilobytesd. 4 kilobytese. The question is meaningless,
because /dev/fd4 is a device node.
3. What type of file is /dev/fd2?a. symbolic linkb. character
device nodec. block device noded. directorye. None of the above
4. What is the major number of the file /dev/fd7?a. 7b. 131c.
2d. Not enough information is providede. The question is
meaningless, because /dev/fd7 is a symbolic link.
Use the following transcript to answer the next 3
questions.[root@station root]$ ls -l /dev/tty?crw--w---- 1 root
root 4, 0 Jan 30 2003 /dev/tty0crw--w---- 1 root tty 4, 1 Oct 28
02:55 /dev/tty1crw------- 1 root root 4, 2 Oct 24 17:40
/dev/tty2crw------- 1 root root 4, 3 Oct 24 17:44
/dev/tty3crw------- 1 root root 4, 4 Oct 24 17:44
/dev/tty4crw------- 1 root root 4, 5 Oct 24 17:44
/dev/tty5crw------- 1 root root 4, 6 Oct 24 17:44
/dev/tty6crw--w---- 1 root root 4, 7 Jan 30 2003
/dev/tty7crw--w---- 1 root root 4, 8 Jan 30 2003
/dev/tty8crw--w---- 1 root root 4, 9 Jan 30 2003 /dev/tty9
5. What type of file is the file /dev/tty8?a. regular fileb.
block device nodec. symbolic linkd. directorye. none of the
above
6. What is the major number of the file /dev/tty3?a. 3b. 1c. 4d.
8e. None of the above
7. What users on the machine can cause text to be displayed on
the first virtual console (/dev/tty1)?a. root and members of the
group ttyb. root onlyc. root and members of the group consoled. all
userse. not enough information is provided
8. Which of the following files is the device node for the CDROM
drive?a. /dev/cdb. /dev/sr0c. /proc/scsi/sr0d. /proc/scsi/cdrome.
None of the above
9. Which of the following is the device node for the SCSI disk
with a SCSI ID of 3?a. /dev/sd2b. /dev/sdcc. /proc/scsi/sdcd. Not
enough information is providede. None of the above
10. A USB drive is added to the system. What command must be run
to create the device node?a. modprobe /dev/usbb. mknod /dev/usbc.
No command needs to be run. USB devices do not use separate device
nodesd. No command needs to be run. udev will create the device
node automaticallye. No command can be run. All device nodes are
created at installation.
Questions1. What is the name of the utility which displays a
dynamically updated list of processes currentlyrunning on the
machine, as well as CPU and memory utilization statistics?a. topb.
monitorc. vmstatd. pse. None of the above
Use the following transcript to answer the next 2
questions.[root@station root]$ uptime05:06:00 up 3 days, 12:25, 2
users, load average: 0.89, 3.25, 8.87
2. Which of the following best describes the activity of the
machine?a. The machine has recently been active, but is currently
inactive.b. The machine has recently been inactive, but is
currently active.c. The machine has been and continues to be
active.d. The machine has been and continues to be
inactive.Performance Monitoringrha130-6.1-1 47 Copyright 2011, Red
Hat Inc.e. None of the above
3. How long has passed since the machine was most recently
booted?a. 5 hoursb. 8.87 hoursc. 12 hoursd. 2 hourse. 84 hours
Use the following top 5 lines from the top command to answer the
next 4 questions.top - 05:14:52 up 3 days, 12:34, 2 users, load
average: 4.39, 1.40, 0.48Tasks: 86 total, 79 sleeping, 7 running, 0
zombie, 0 stoppedCpu(s): 20.0%us, 79.8%sy, 0.4%ni, 0.0%id, 0.0%wa,
0.0%hi, 0.0%si, 0.0%stMem: 255184k total, 247244k used, 7940k free,
91620k buffersSwap: 521632k total, 20756k used, 500876k free,
67012k cached
4. How much physical memory does the machine have?a. 512
megabytesb. 128 megabytesc. 64 megabytesd. 1024 megabytese. 256
megabytes
5. Which of the following best describes the type of activity on
the machine?a. The machine is predominantly running processes which
involve a lot of numeric computation.b. The machine is
predominantly running processes which involve a lot input and
output activity.c. The machine is predominantly idle, without many
processes running.d. None of the above describe the machine's
activity.
6. Roughly what percentage of the machine's physical memory is
devoted to caching I/O operations?a. 5%b. 10%c. 25%d. 33%e. 60%
7. Roughly how much physical memory is being devoted to
processes, in megabytes?a. 255 - 92 = 163Performance
Monitoringrha130-6.1-1 48 Copyright 2011, Red Hat Inc.b. 255 - 8 =
247c. 255 - 67 = 188d. 255 - 92 = 163e. 255 - 8 - (92 + 67) =
88
8. What file contains information about current memory
utilization?a. /etc/memoryb. /proc/topc. /var/log/memd.
/proc/meminfoe. None of the above
Use the following transcript to answer the next 2 questions.top
- 05:32:33 up 3 days, 12:52, 2 users, load average: 1.92, 1.87,
1.87Tasks: 87 total, 82 sleeping, 5 running, 0 zombie, 0
stoppedCpu(s): 99.0%us, 1.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi,
0.0%si, 0.0%stMem: 255184k total, 250332k used, 4852k free, 8560k
buffersSwap: 521632k total, 76584k used, 445048k free, 100384k
cached
9. On average, how many processes have been running for the past
few minutes?a. 0b. 2c. 5d. 87e. Not enough information is
provided
10. Which of the following best describes the type of activity
on the local machine?a. The machine is predominantly idle, without
many processes running.b. The machine is predominantly running
processes which involve a lot input and output fromthe
filesystem.c. The machine is predominantly running processes which
involve a lot of numeric computation.d. None of the above describe
the machine's activity.
LinuxFilesystem ManagementQuestionsUse the output from the
following command to answer the next question.[root@station root]$
cat /proc/partitionsmajor minor #blocks nameng use aveq8 0 8891650
sda8 1 136521 sda18 2 3502170 sda28 3 2096482 sda38 4 1 sda48 5
2096451 sda5
1. Which of the following best explains why the partition sda4
is listed in /proc/partitionswith only a size of 1?a. The partition
has been initialized with a filesystem, but the filesystem is not
mounted.b. The partition is being used as the extended partition,
and therefore is not accessed directly.c. The partition has been
initialized as swap space, but there has not yet been a high
demandplaced on physical memory.d. The disk has not yet had a
partition sda4 allocated.e. None of the above
2. Which of the following partitions could be an extended
partition?a. /dev/sda7b. /dev/sdb5c. /dev/sdb4d. /dev/sdc8e. None
of the above
3. Which of the following would be a logical partition?a.
/dev/sda3b. /dev/sda5c. /dev/sdb1d. /dev/sdb4e. None of the
above
4. Which of the following commands would list all known
partitions?a. fdisk --dumpb. dumppartc. fdisk -culd. fdisk --liste.
None of the above
5. Which of the following commands could be used to add the
partition /dev/sda8?a. fdisk -a /dev/sda8b. fdisk -cu /dev/sda8c.
fdisk -l /dev/sda8d. fdisk --add /dev/sda8e. None of the above
Use the following transcript to answer the next 3
questions.[root@station root]$ fdisk -cul /dev/sdbDisk /dev/sdb:
10.7 GB, 10737418240 bytes255 heads, 63 sectors/track, 1305
cylinders, total 20971520 sectorsUnits = sectors of 1 * 512 = 512
bytesSector size (logical/physical): 512 bytes / 512 bytesDisk
Recognition and Partitioningrha130-6.1-1 20 Copyright 2011, Red Hat
Inc.I/O size (minimum/optimal): 512 bytes / 512 bytesDisk
identifier: 0x2f2333e8Device Boot Start End Blocks Id
System/dev/sdb1 2048 206847 102400 83 Linux/dev/sdb2 206848
16984063 8388608 83 Linux/dev/sdb3 16984064 18032639 524288 82
Linux swap / Solaris/dev/sdb4 18032640 20129791 1048576 83
Linux
6. Assuming that the system Id's indicate the true use of the
partitions, approximately how muchpartition space is allocated to
swap space?a. 128 megabytesb. 520 megabytesc. 8.4 gigabytesd. 5.5
megabytese. Not enough information is provided
7. Approximately how much space is left unallocated on the drive
/dev/sdb?a. 0b. 420 megabytesc. 8.4 gigabytesd. 84 megabytese. Note
enough information is provided
8. The administrator wants to use the space is left unallocated
on the drive /dev/sdb. What optionsare avaialble?a. A new ext4
filesystem can be created with the remaining spaceb. A new extended
partition can be created with the remaining spacec. One or more new
logical partitions can be created with the remaining spaced. The
remaining space is not available for usee. Note enough information
is provided
9. After editing the partition table with fdisk, what action
must (usually) be taken for the kernel torecognize the new
partitions?a. The machine must be rebooted.b. The new partition
should be added to /proc/partitions with a text editor.c. The
partprobe command should be run.d. None of the abovee. Either A or
C
10. Which of the following fdisk commands is used to abandon all
changes?a. ab. qc. xd. we. z
Questions1. Which of the following filesystems is usually
associated with compact disks?a. ext3b. iso9660c. reiserfsd. vfate.
None of the above
2. Which of the following commands could be used to create an
ext3 filesystem?a. mkfs.ext3b. mkfs -t ext3c. mke2fs -jd. mkfs.ext2
-je. All of the above
3. Which of the following command lines could be used to create
an ext2 filesystem with a blocksizeof 2048 bytes?a. mke2fs -b 2048
/dev/sda4b. mke2fs /dev/sda4c. mke2fs -b2k /dev/sda4d. mke2fs -b2
/dev/sda4e. A and B
Use the following transcript to answer the next 2
questions.[root@station root]# dumpe2fs /dev/sdb5dumpe2fs 1.39
(29-May-2006)Filesystem volume name: /homeLast mounted on:
Filesystem UUID: 4a26ac4a-fcd9-4231-bf3a-e5e5fb2456b5Filesystem
magic number: 0xEF53Filesystem revision #: 1 (dynamic)Filesystem
features: has_journal filetype needs_recovery sparse_superDefault
mount options: (none)Filesystem state: cleanErrors behavior:
ContinueFilesystem OS type: LinuxInode count: 3842720Block count:
7681070Reserved block count: 384053Free blocks: 1150544Free inodes:
3597708First block: 0Block size: 4096Fragment size: 4096Blocks per
group: 32768Fragments per group: 32768Inodes per group: 16352Inode
blocks per group: 511Last mount time: Sun Oct 5 13:59:31 2003Last
write time: Sun Oct 5 13:59:31 2003Mount count: 74Maximum mount
count: -1Last checked: Fri Sep 19 09:16:20 2003Check interval:
15552000 (6 months)Next check after: Wed Mar 17 08:16:20
2004Reserved blocks uid: 0 (user root)Reserved blocks gid: 0 (group
root)First inode: 11Inode size: 128Journal UUID: Journal inode:
8Journal device: 0x0000First orphan inode: 0
4. Which of the following command lines could have created this
filesystem? (Assume that thefilesystem has not been modified with
tune2fs since it was created.)a. mke2fs -L /home -b 2048
/dev/sdb5b. mkfs.ext3 -b 2048 /dev/sdb5c. mkfs -t ext2 -b 4096
/dev/sdb5d. mke2fs -j -L /home -b 4096 -N 3842720 /dev/sdb5e. None
of the above
5. When creating this filesystem, which of the following would
be the appropriate argument to the -icommand line switch to the
mke2fs command to generate the appropriate number of inodes?a. -i
2b. -i 4096c. -i 8192d. -i 4e. None of the above
6. When formatting a floppy with the mke2fs command, why might
one be tempted to include the-m 0 command line switch?a. Because
journaling would be too slow on a floppy, this command line switch
would disablejournaling.b. The command line switch would prevent
any blocks being reserved for only the root user.c. The command
line switch would set the number of inodes to 0, which is
appropriate fortemporary media such as floppies.d. The command line
switch would cause the floppy to be overwritten with binary 0's
before thefilesystem is constructed, wiping clean any previous
data.e. None of the above
7. Which of the following command lines would create a
filesystem with a volume label of data?a. mkfse2 -l data
/dev/sda1b. mkfs.ext2 --label=data /dev/sda1c. mkfs.ext2 -m data
/dev/sda1d. mkfs -t ext2 -L data /dev/sda1e. None of the above
8. Which of the following command lines would create an ext4
filesystem with a block size of 4096?a. mke2fs --journal
--block=4096 /dev/sda1b. mkfs.ext4 -b 4k /dev/sda1c. mkfs -t ext2
-j -b4 /dev/sda1d. mkfs -t ext4 --block=4k /dev/sda1e. None of the
above
9. Which of the following command line switches causes the
mke2fs command to check the disk forbad blocks before creating a
filesystem?a. -Lb. -cc. -bd. -se. None of the above
10. Your friend has just run the dumpe2fs command on his /home
filesystem, and noticed that theflag needs_recovery was set. What
advice would you give him?a. He should reboot his machine
immediately.b. When convenient, he should unmount the partition,
and perform filesystem maintenance.c. He should not be concerned,
as the flag is always set on mounted filesystems.d. He should not
be concerned, as the Linux kernel automatically runs a filesystem
recoveryalgorithm every 10 minutes.e. You do not believe him, and
suspect he ran the dumpe2fs command on a partition that doesnot
contain an ext2 filesystem.
Questions1. Which of the following could be a legitimate
invocation of the mount command?a. mount -t /dev/sda2 /homeb. mount
/home /dev/sda2c. mount /dev/sda2 /homed. mount -o /home
/dev/sda2e. None of the above
2. Which of the following command lines would mount the device
/dev/sda3, formatted with thevfat filesystem, to the mount point
/dosc?a. mount -o vfat -d /dev/sda3 /doscb. mount -t vfat /dev/sda3
/doscc. mount -t vfat -o /dosc /dev/sda3d. mount -o vfat /dosc
/dev/sda3e. None of the above
3. Which of the following is not a common Linux mount option?a.
mtimeb. noatimec. noexecd. roe. All are common mount options
Use the following transcript to answer the next 3
questions.[root@station root]# mount/dev/sda3 on / type ext4
(rw)proc on /proc type proc (rw)sysfs on /sys type sysfs (rw)devpts
on /dev/pts type devpts (rw,gid=5,mode=620)/dev/sda1 on /boot type
ext4 (rw)tmpfs on /dev/shm type tmpfs (rw)none on
/proc/sys/fs/binfmt_misc type binfmt_misc (rw)sunrpc on
/var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)[root@station root]#
mount /dev/sda7 /var[root@station root]# mount /dev/sda5
/var/www/html
4. Which partition contains the file /proc/meminfo?a.
/dev/sda1b. /dev/sda7c. /dev/sda5d. /dev/sda3e. None of the
above
5. Which partition contains the mount point /var/www/html?a.
/dev/sda3b. /dev/sda7c. /dev/sda1d. /dev/sda5e. None of the
above
6. When accessing the file /var/www/html/index.html, how many
partitions does the kernelinvolve?a. 1b. 3c. 0d. 2e. Not enough
information is provided
Use the following transcript to answer the next 2
questions.[root@station root]# mount /dev/fd0
/mnt/floppy[root@station root]# cd /mnt/floppy[root@station
floppy]# cal > september.txt[root@station floppy]# umount
/mnt/floppyumount: /mnt/floppy: device is busy
7. Which is the most likely reason the /mnt/floppy device was
considered busy?a. The kernel had not yet finished writing the file
september.txt.b. Although the kernel had finished writing the file
september.txt, the writes had not yetbeen committed to disk.c. The
filesystem on the /mnt/floppy device has become corrupted.d. The
bash shell's current working directory is /mnt/floppy.e. None of
the above
8. Which of the following commands would resolve the problem, so
that if it were immediatelyfollowed by the same umount command
listed above, the unmount would succeed?a. fuser -m /mnt/floppyb.
fsck -m /mnt/floppyc. syncd. cde. None of the above
9. Which of the following command lines would add the noatime
option to an already mounted /home partition?a. mount -o noatime
/dev/sda4 /homeb. mount -a noatime /dev/sda4 /homec. mount -remount
-o noatime /dev/sda4 /homed. mount -o remount,noatime /dev/sda4
/homee. None of the above
Use the following transcript to answer the next
question.[root@station root]# mount/dev/sdb6 on / type ext4
(rw)none on /proc type proc (rw)usbdevfs on /proc/bus/usb type
usbdevfs (rw)/dev/sdb7 on /var/ftp/pub type ext4 (rw)/dev/sdb5 on
/home type ext4 (rw)none on /dev/pts type devpts
(rw,gid=5,mode=620)none on /dev/shm type tmpfs (rw)
10. Which of the following command lines could be used to
unmount the /home partition?a. unmount /homeb. umount -t ext3c.
umount /dev/sdb5d. unmount -ae. None of the above
QuestionsUse the following transcript to answer the next 5
questions.[root@station root]# cat /etc/fstabLABEL=/ / ext4
defaults 1 1LABEL=/var/ftp/pub /var/ftp/pub ext4 defaults 1
2LABEL=/home /home ext4 defaults 1 2LABEL=/boot /mnt/boot ext4
defaults,noauto 1 2/dev/sda5 /dos vfat defaults,noauto,user 0
2devpts /dev/pts devpts gid=5,mode=620 0 0proc /proc proc defaults
0 0sysfs /sys sysfs defaults 0 0tmpfs /dev/shm tmpfs defaults 0
0LABEL=SWAP-sdb2 swap swap defaults 0 0/dev/fd0 /media/floppy auto
user 0 01. Which of the following mount points would not be used by
a mount -a command?a. /var/ftp/pubb. /dev/ptsc. /homed. /dose. All
of the above mount points would be used.
2. Which of the following command lines would attempt to mount
the /dev/sda5 partition?a. mount /dev/sda5b. mount /dosc. mount
/dev/sda5 /mnt/dosd. All of the abovee. A and B only
3. Which of the following command lines would attempt to mount a
filesystem to the /mnt/bootdirectory?a. mount -ab. mount /bootc.
mount -L /bootd. A and Ce. None of the above
4. What is the most likely reason that the third column of the
last line contains the word auto?a. Because a FAT or ext2 or
otherwise formatted floppy could be inserted into the drive,
thefilesystem type should be probed for each mount.b. When a floppy
is inserted into the drive, the filesystem should be automatically
mounted.c. Upon bootup, the system should attempt to mount the
floppy automatically.d. The auto filesystem is the most common
filesystem used on floppy drives.e. None of the above adequately
explain the configuration.
5. What users would be able to mount the device /dev/fd0?a. Only
root may perform mounts.b. Any user logged in physically at the
console (and root).c. Any user on the system.d. The current owner
of the directory /mnt/floppy (and root).e. None of the above.
6. What does the noauto mount option imply?a. The filesystem
should not be managed by an automounting daemon.b. The filesystem
should not be automatically mounted whenever a file within the
filsystem isreferences.c. The filesystem should not be mounted as
part of the system startup process.d. The line should not be
automatically removed from the configuration file if the
underlyingpartition is deleted.e. None of the above
7. What command could be used to create the label referred to by
the LABEL= syntax in the /etc/fstab file?a. mke2fsb. fdiskc.
mountd. fusere. None of the above
Use the following transcript to answer the next 3
questions.[root@station root]$ cat /etc/fstab/dev/sda6 / ext4
defaults 1 1/dev/sda2 /boot ext4 defaults 1 2devpts /dev/pts devpts
gid=5,mode=620 0 0proc /proc proc defaults 0 0sysfs /sys sysfs
defaults 0 0tmpfs /dev/shm tmpfs defaults 0 0/dev/sda1 tmp ext4
defaults 1 2/dev/sda3 /var ext4 defaults 1 2/dev/sda4 /var/data
ext4 defaults 1 1
8. What is suspicious about the first column of this file, which
leads you to believe that there mustbe some mistake?a. A logical
partition is being used as the root partition, which is not
allowed.b. A device of type "none" is being mounted to the /proc
partition, which makes no sense.c. All of the partitions are being
mounted from a single drive.d. There is a jump from 4 to 6 in the
listed partitions, with no mention of partition number 5.e. The
file implies that all 4 primary partitions contain a filesystem,
but a logical partition existsas well.
9. What is suspicious about the second column of this file,
which leads you to believe that there mustbe some mistake?a.
Partitions are configured to be mounted to both /var/data and /var,
but partitions mayonly be mounted to directories contained by the
root partition.b. The mount point tmp is specified as a relative
reference.c. Filesystems are configured to be mounted to
directories in the /dev directory, but the /devdirectory may only
contain device nodes.d. A partition is configured to be mounted to
/, but only the kernel may mount the root partition.e. A filesystem
is configured to be mounted to /proc, but the kernel automatically
mounts /proc as part of its bootup process.
10. What is suspicious about the last column of this file, which
leads you to believe that there mustbe some mistake?a. The column
contains the value 0, when only the values greater than 0 are
allowed.b. The column contains multiple entries for the value "2",
which will result in an error when thefsck command tries to decide
which to check first.c. The column contains the value "2", when
only the values 1 and 0 are meaningful.d. The last column only
exists for legacy reasons, so the fact that it contains non-zero
values issuspect.e. The column contains multiple entries for the
value "1", when the value 1 is only supposed tobe used for the root
partition.Questions1. What is the threshold amount of physical
memory, above which allocating swap space is no
longerrecommended?a. 128 megabytesManaging Swap Spacerha130-6.1-1
59 Copyright 2011, Red Hat Inc.b. 256 megabytesc. 512 megabytesd. 1
gigabytee. A swap partition should always be created, no matter how
much physical memory is available.
2. Which of the following files lists currently active swap
partitions?a. /proc/swapsb. /etc/fstabc. /var/state/swapd.
/etc/swaptabe. None of the above
3. Which file is used to define swap partitions which should be
activated automatically as the systemboots?a. /etc/swaptabb.
/etc/fstabc. /proc/swapsd. /var/state/swape. none of the above
4. What command line would be used to initialize a disk
partition to be used as swap space?a. swapinit /dev/sda3b. mkswap
/dev/sda3c. mkfs -t swap /dev/sda3d. fdisk /dev/sda3e. None of the
above
5. What command line would be used to initialize a file to be
used as swap space?a. mkswap /tmp/swapfileb. mkswap -f
/tmp/swapfilec. swapinit -f /tmp/swapfiled. mkswapfile
/tmp/swapfilee. None of the above
6. ext3 is to mount as swap is to ....Managing Swap
Spacerha130-6.1-1 60 Copyright 2011, Red Hat Inc.a. swaponb.
mkswapc. swapsd. swapoffe. startswap
7. Which of the following lines could be used to define a swap
area that should be activated at systemstartup in the /etc/fstab
file?a. /dev/sda4 swap swap defaults 0 0b. swap /dev/sda4 swap
defaults 0 0c. /tmp/swapfile swap swap noauto 0 0d. /tmp/swapfile
none none defaults 0 0e. None of the above
8. Which of the following commands is used to deactivate a swap
area?a. swapstopb. umountc. uswapd. swapoffe. None of the above
9. Which of the following command lines could be used to
activate a swap partition with a priorityof 3?a. mkswap -p 3
/dev/sda3; swapon /dev/sda3b. swap /dev/sda3 3c. mount -t swap -o
pri=3 /dev/sda3d. swapon -p 3 /dev/sda3e. none of the above
10. Which of the following commands could confirm that a swap
partition is active with a priority of 3?a. cat /proc/swapsb. cat
/proc/meminfoc. topd. cat /proc/slabinfoe. A and BQuestions1. Which
of the following command lines could be used to check and repair an
ext2 filesystem?a. fsck /dev/sda3b. fsck -t ext2 /dev/sda3c.
fsck.ext2 /dev/sda3d. e2fsck /dev/sda3e. All of the above
2. Which of the following command lines could be used to assign
the label /data to an ext2 filesystem?a. e2label /data /dev/sda3b.
e2label -L /data /dev/sda3c. e2label /dev/sda3 /datad. label -t
ext2 /dev/sda3 /datae. None of the above
The remaining questions refer to the following scenario.You have
just attached a newly purchased drive to an already existing Red
Hat Enterprise Linuxinstallation. Using only the tools discussed in
this Workbook, you would like to create 6 ext4 filesystems,each
mounted to the directories /data1, /data2, ..., /data6, and a 256
megabyte swap partition. Youwould like all 6 partitions to be
mounted and the swap area to be activated automatically at
bootup.
3. Which of the following commands could you get away with not
using?a. e2labelb. mkswapc. fdiskd. mounte. All of the above
commands are required.
4. What is the most reasonable ordering for the commands you
will use?a. mke2fs, mkswap, fdisk, mount, swaponb. fdisk, swapon,
mkswap, mke2fs, mountc. mount, fdisk, mke2fs, mkswap, swapond.
fdisk, mke2fs, mkswap, mount, swapone. mkswap, swapon, mke2fs,
mount, fdisk
5. At least how many logical partitions will need to be used?a.
1b. 2c. 3d. 4e. 5
6. Which of the following command lines could be used to create
an ext4 filesystem on the first logicalpartition, and assign it the
label /data3?a. mkfs.ext4 -L /data3 /dev/sdd5b. mkfs.ext4
/dev/sdd5; e2label /dev/sda5 /data3c. mkfs.ext4 /dev/sdd5; tune2fs
-L /dev/sda5 /data3d. All of the abovee. None of the above
7. Once the ext4 filesystems have been created, and are all
mounted, you decide that you would likethe filesystem on partition
/dev/sdd2 to be an ext3 filesystem instead. Which command line
couldbe used to convert the filesystem to ext3 (without losing any
data already in the filesystem)?a. tune2fs -j /dev/sdd2b. umount
/dev/sdd2 && mkfs.ext3 /dev/sdd2c. umount /dev/sdd2
&& tune2fs -j /dev/sdd2d. umount /dev/sdd2 &&
mke2fs -j /dev/sdd2e. An ext4 filesystem cannot be reverted to an
ext2 or ext3 filesystem
8. You decide that you would like to check and repair the
filesystem on partition /dev/sdd3. Youunmount the partition. What
command could you run next to perform the check?a. swapoff
/dev/sdd3b. fsck.vfat /dev/sdd3c. fisk /dev/sdd3d. fsck /dev/sdd3e.
None of the above
9. The check and repair utility used above mentions that it has
restored some file, but could not findnames for. Where should you
look for these files?a. The /lost+found directory in your root
partition.b. The lost+found directory in the repaired filesystem's
root directory.c. The /proc/lost+found directory.d. The
/tmp/lost+found directory.e. None of the above
10. You realize that your previously installed Red Hat
Enterprise Linux system had not used theext3 filesystem. After
successfully converting your new ext2 filesystem to ext3, what
additionalcommand should be run?a. ext3initb. kudzuc. mkinitrdd.
setupe. mkext3Questions1. Which of the following could be an
appropriate reference to one of the volume group vg0's
physicalvolumes?a. /dev/vg0/lv1b. /dev/vg0/hda1c. /dev/lv1/sda3d.
/dev/sdb3e. None of the above
2. Which of the following would be an appropriate reference to
the logical volume lv1?a. /dev/lvm/lv1b. /dev/vg0/lv1c. /dev/lv1d.
/dev/hda1e. None of the above
3. Which of the following commands is used to initialize an lvm
physical volume?a. mkpvb. mklvm -pc. pvmaked. pvcreatee. None of
the above
4. What is the name of the granular unit which is used to
structure the assignments of disk space tological volumes within a
volume group?a. sectorb. physical extentc. blockd. chunke.
stripe
5. Which command is used to add a physical volume to an already
existing volume group?a. vgextendb. vggrowc. vgadmind. pvcreatee.
None of the above
Use the output of the following command to answer the next two
questions.[root@station] pvdisplay /dev/sdb1--- Physical volume
---PV Name /dev/sdb1VG Name vg0PV Size 37.16 GB [7792848 secs] /
NOT usable 4.1 MB [LVM: 165 KB]PV# 1PV Status availableAllocatable
yesCur LV 6PE Size (KByte) 4096Total PE 9511Free PE 2Allocated PE
9509PV UUID ptzILn-vnWA-SmcN-fu2m-Bsjt-MUO6-67tjDT
6. What is the name of the volume group to which this physical
volume has been contributed?a. /dev/sda2b.
ptzILn-vnWA-SmcN-fu2m-Bsjt-MUO6-67tjDTc. vg0d. Not enough
information is provided.
7. What is the size of the physical extents for the physical
volume?a. 1 kilobyteb. 4 kilobytesc. 9511 kilobytesd. 4 megabytese.
Not enough information is provided.
Use the output of the following command to answer the next two
questions.[root@station] vgdisplay vg0--- Volume group ---VG Name
vg0VG Access read/writeVG Status available/resizableVG # 0MAX LV
256Cur LV 6Open LV 5MAX LV Size 255.99 GBMax PV 256Cur PV 1Act PV
1VG Size 37.15 GBPE Size 4 MBTotal PE 9511Alloc PE / Size 9509 /
37.14 GBFree PE / Size 2 / 8 MBVG UUID
GonJxd-GLBD-XFWC-2zuU-JM8Q-isye-3B345B
8. How much space is available for assignment to a logical
volume?a. 4 megabytesb. 37.15 gigabytesc. 0.25 megabytesd. 8
megabytese. None of the above
9. Which of the following must be specified when creating a
logical volume?a. The name of the logical volumeb. The size of the
logical volumec. The size of a physical extent within the volumed.
A and Be. All of the above
10. Which of the following can be created at install time using
the Red Hat Enterprise Linux installer?a. Physical volumesb. Volume
Groupsc. Logical Volumesd. A and Ce. A, B and CQuestions1. Which of
the following can be encrypted with LUKS?a. ext4 filesystemsb. swap
partitionsc. msdos filesystemsd. Answers A and Be. All of the
above
2. Which of the following devices can be encrypted with LUKS?a.
Physical partitionsb. NFS mountsc. Logical volumesd. Answers A and
Ce. All of the above
3. Which is the correct order for preparing an encrypted
device?a. Create the partition, format for encryption, unlock the
partition, create a filesystem, mountthe filesystemb. Create the
partition, create a filesystem, encrypt the filesystem, unlock the
partition, mountthe filesystemc. Create the partition, unlock the
partion, create the filesystem, mount the filesystem, encryptthe
filesystemd. Create the partition, create the filesystem, mount the
filesystem, unlock the partition, encryptthe filesysteme. Create
the partition, format for encryption, mount the device, create the
filesystem, unlockthe filesystem
4. Which command encrypts the device?a. cryptsetup formatLuksb.
cryptsetup lockLuksc. cryptsetup luksFormatd. cryptsetup isLukse.
cryptsetup luksClose
5. Which command is used to manually unlock an encrypted
device?a. cryptsetup luksFormatb. cryptsetup unlockLuksc.
cryptsetup luksUnlockd. cryptsetup luksOpene. cryptsetup isLuks
6. What file holds the mappings for encrypted devices?a.
/etc/crypttabb. /etc/lukstabc. /etc/fstabd. /etc/sysconfig/crypte.
/etc/sysconfig/luks