SUSE linux enterprise server administration course 3112 CLA LPIC 1 and linux+ 2nd edition novell test bank

Section 2: Install SUSE Linux Enterprise Server 11
TRUE/FALSE
1. A primary partition consists of a continuous range of cylinders assigned to a particular file system.
ANS: T

PTS: 1

REF: 152

2. The /var/ directory contains many of the Linux program files.
ANS: F

PTS: 1

REF: 153

3. In most YaST installation dialogs, the left panel displays an overview of the installation status and the
right panel displays the current installation step.
ANS: T

PTS: 1

REF: 172

4. By default, YaST selects the time zone to be GMT.
ANS: F

PTS: 1

REF: 175

5. The FHS tree can stretch over several partitions, but they must all be located on the same computer.
ANS: F

PTS: 1

REF: 218

MULTIPLE CHOICE
1. ____ partitions do not require entries in the partition table.
a. Extended
c. Primary
b. Logical
d. Hardware
ANS: B

PTS: 1

REF: 152

2. The secondary slave IDE hard disk is typically given the Linux name ____.
a. /dev/sda
c. /dev/sdc
b. /dev/sdb
d. /dev/sdd
ANS: D

PTS: 1

REF: 154

3. RAID level ____ is known as hard disk striping.
a. 0
c. 5
b. 1
d. 6
ANS: A

PTS: 1

4. XFS is a(n) ____ file system.
a. traditional
b. advanced
ANS: C

PTS: 1

REF: 158

c. journaling
d. network
REF: 160

5. In Linux, each file is described by an inode of size ____ bytes.
a. 32
c. 128


b. 64
ANS: C

d. 256
PTS: 1

REF: 162

6. What block group component contains a valid bit, which is set to 0 when the file system is mounted
and set to 1 by unmount?
a. Block Bitmap
c. Group Descriptor
b. Inode Table
d. SuperBlock
ANS: D

PTS: 1

REF: 164

7. Which command is used to create a symbolic link?
a. ln -f
c. ln -b
b. ln -s
d. ln -i
ANS: B

PTS: 1

REF: 167

8. Which boot menu option is used to boot into a graphical repair utility?
a. Rescue System

c. Check Installation Media
b. Repair Installed System
d. Firmware Test
ANS: B

PTS: 1

REF: 170

9. What base scenario should you select if you are installing SLES11 on physical hardware without
XEN?
a. Physical Machine
c. Virtual Machine
b. XEN Machine
d. XEN Virtualization Host
ANS: A

PTS: 1

REF: 176

10. ____ saves a dump of the kernel in the event of a system crash.
a. Booting
c. Default Runlevel
b. Add-on Products
d. Kdump
ANS: D

PTS: 1

REF: 178

11. YaST allows you to select ____ of software based on function.
a. repositories
c. languages
b. patterns
d. summaries
ANS: B

PTS: 1

REF: 192

12. What is the structure of the default host name suggested by YaST?
a. yast-xxxx
c. linux-xxxx
b. host-xxxx
d. server-xxxx
ANS: C

PTS: 1

REF: 196

13. When configuring a network card that was not automatically detected, the Configuration Name field
represents ____.
a. the network device type
b. the interface’s device number
c. the type of module of the network card
d. the name you want to use to refer to the network card

ANS: B

PTS: 1

REF: 200


14. ____ is used to guarantee a trust relationship among all network services that communicate with each
other.
a. Certification Authority
c. SSL
b. SSH
d. TLS
ANS: A

PTS: 1

REF: 208

15. A filename in Linux can be up to ____ characters long.
a. 63
c. 255
b. 127
d. 511
ANS: C

PTS: 1

REF: 218

16. The hierarchical file system tree used in Linux begins at the ____ directory.
a. usr
c. lib
b. /
d. bin
ANS: B

PTS: 1

REF: 218

17. The length of the path to a file cannot exceed ____ characters, including slashes.
a. 512
c. 2048
b. 1024
d. 4096
ANS: D

PTS: 1

REF: 220

18. The ____ directory contains device files representing each hardware component in the system.
a. /bin/
c. /lib/
b. /dev/
d. /etc/
ANS: B

PTS: 1

REF: 222

19. Which directory contains system configuration files, and cannot include any executable programs?
a. /bin/
c. /lib/
b. /dev/
d. /etc/
ANS: D

PTS: 1

REF: 223

20. Which directory under the /usr/ directory includes source files of all programs and the kernel?
a. /usr/X11R6/
c. /usr/sbin/
b. /usr/bin/
d. /usr/src/
ANS: D

PTS: 1

REF: 227

21. The ____ directory may be imported from a remote computer.
a. /home/
c. /usr/
/opt/
b.

d. /boot/
ANS: D

PTS: 1

REF: 231

COMPLETION
1. You can use the ____________________ to manage logical volumes with names that make sense,
instead of physical disk names.
ANS:
Logical Volume Manager


Logical Volume Manager (LVM)
LVM (Logical Volume Manager)
LVM
PTS: 1

REF: 156

2. In ____________________ RAID, hard disks are connected to a separate RAID controller.
ANS: hardware
PTS: 1

REF: 158

3. If the hardware clock is set to ____________________, the system time is set according to your time
zone and is automatically to daylight saving time.
ANS:

Universal Time Coordinated (UTC)
UTC (Universal Time Coordinated)
Universal Time Coordinated
UTC
PTS: 1

REF: 175

4. A(n) ____________________ path to a file starts from the root of the entire file system tree.
ANS: absolute
PTS: 1

REF: 219

5. To remove a mounted file system, use the ____________________ command.
ANS: umount
PTS: 1

REF: 230

MATCHING
Match each term with the correct statement below:
a. Mirroring
f.
b. Partition
g.
c. Swap partition
h.
d. Virtual File System (VFS)
i.

e. Software RAID
1.
2.
3.
4.
5.
6.
7.
8.

Hard link
Extended partition
/sbin/ directory
Dependent packages

a portion of the hard disk
a partition including a continuous range of disk cylinders, that can be subdivided into logical partitions
a RAID system in which hard disks are combined by the operating system
enhances data security because data is copied to one or several hard disks
an abstraction level in the kernel providing defined interfaces for processes
another entry in a directory that points to the inode of a file that already has a file name
extends the physically available system RAM
a software package that needs another package to already be installed for it to run


9. contains important programs for system administration
1.
2.
3.
4.

5.
6.
7.
8.
9.

ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:
ANS:

B
G
E
A
D
F
C
I
H

PTS:
PTS:
PTS:
PTS:

PTS:
PTS:
PTS:
PTS:
PTS:

1
1
1
1
1
1
1
1
1

REF:
REF:
REF:
REF:
REF:
REF:
REF:
REF:
REF:

152
152
158
158

161
166
179
193
226

SHORT ANSWER
1. What are some of the recommendations for implementing a partitioning scheme other than the one
suggested by YaST?
ANS:
If you want to implement your own partitioning scheme, consider the following recommendations
(depending on the amount of space and how the computer will be used, adjust the distribution of the
available disk space):
• If your hard disk has less than 4 GB of available space, you should use one partition for the swap
space and one for the root partition (/). In this case, the root partition must allow for those directories
that often reside on their own partitions if more space is available.
• If your hard disk has more than 4 GB of available space, you should at least create a swap partition
and a root partition (4 GB). You can create separate partitions for different directories in your Linux
server’s file system.
PTS: 1

REF: 153

2. What are the components of the basic structure of the LVM?
ANS:
The basic structure of LVM includes the following components:
• Physical volume. Can be a partition or an entire hard disk.
• Volume group. Consists of one or several physical volumes grouped together. The physical
partitions can be spread over different hard disks. You can add hard disks or partitions to the volume
group during operation whenever necessary. The volume group can also be reduced in size by

removing physical volumes (hard disks or partitions).
• Logical volume. Part of a volume group. A logical volume can be formatted and mounted like a
physical partition.
PTS: 1

REF: 157

3. What are RAID levels, and how do they differ from one another?
ANS:


The RAID level is determined by the method with which the hard disks are combined and by their
number:
• RAID 0. RAID 0 improves the performance of your data access; however, there is no redundancy
in RAID 0. With RAID 0, two or more hard disks are pooled together (striping). Disk performance is
very good, but the RAID system is vulnerable to a single point of failure. If one of the disks fails, all
data is lost.
• RAID 1. RAID 1 provides enhanced security for your data because the data is copied to one or
several hard disks. This is also known as hard disk mirroring. If one disk is destroyed, a copy of its
contents is available on the other disks. Minimum number of disks (or partitions) required for RAID 1
is two.
• RAID 5. RAID 5 (Redundant Striping) is an optimized compromise between RAID 0 and RAID 1
in terms of performance and redundancy. Data and a checksum are distributed across the hard disks.
Minimum number of disks (or partitions) required for RAID 5 is three. If one hard disk fails, it must be
replaced as soon as possible to avoid the risk of losing all data on the array by failure of another disk.
The data on the failed disk is reconstructed on its replacement from the data on the remaining disks
and the checksum. If more than one hard disk fails at the same time, the data on the RAID 5 array is
lost.
• RAID 6. RAID 6 is comparable to RAID 5, with the difference being that two disks may fail
without data loss. The minimum number of disks (or partitions) required for RAID 6 is four.

PTS: 1

REF: 158-159

4. What is the default file system for SLES 11? Discuss some of its features.
ANS:
ext3. Enhanced version of the ext2 file system that supports journaling. ext3 is the default file system
for SLES 11.
The ext3 file system is a journaled file system that is most widely used in Linux today. It is quite
robust and fast, although it does not scale too well to either large volumes or a great number of files.
Recently a scalability feature called htrees was added, which significantly improves ext3's scalability.
However, it is still not as scalable as some of the other file systems listed, even with htrees. With
htrees, ext3’s scalability is similar to NTFS. Without htrees, ext3 can’t handle efficiently more than
about 5,000 files in a directory.
PTS: 1

REF: 160

5. What are the options that appear after the system boots from the installation media? Briefly explain
each option.
ANS:
After your system has booted from the installation media, the following options appear:
• Boot from Hard Disk. Boots an operating system installed on the hard disk (if one exists). This is
the default option. It allows the system to boot normally in the event you forget to remove your SLES
11 installation media from the optical drive.
• Installation. Starts the normal installation process. All modern hardware functions are enabled.


• Repair Installed System. Boots into a graphical repair utility.
• Rescue System. Starts the SLES 11 rescue system. If you cannot boot your installed Linux system,

you can boot the computer from the installation media and select this option. This starts a minimal
Linux system without a graphical user interface to allow you to access disk partitions for
troubleshooting and repairing an installed system.
• Check Installation Media. Starts a verification routine that checks the integrity of your SLES 11
installation media.
• Firmware Test. Starts a BIOS checker that validates ACPI and other parts of your system BIOS.
• Memory Test. Starts a memory testing program that tests system RAM by using repeated read and
write cycles. This is done in an endless loop, because memory corruption often shows up sporadically,
and many read and write cycles might be necessary to detect it. If you suspect that your RAM might be
defective, start this test and let it run for several hours. If no errors are detected, you can assume that
the memory is intact. Terminate the test by rebooting the system.
PTS: 1

REF: 169-171

6. What are the possible installation modes available on the YaST installation mode screen?
ANS:
You can select the installation mode in the installation mode screen, which presents the following
options:
• New installation. Performs a normal new installation of SLES 11. This is the default option.
• Update. Updates a previously installed SLES 10 installation to SLES 11.
• Repair Installed System. Repairs an existing system that has been damaged.
PTS: 1

REF: 174

7. In what situations would you need to manually change the paritioning scheme suggested by YaST?
ANS:
You might need to manually change the partitioning scheme if any of the following applies:
• You want to optimize the partitioning scheme for a special-purpose server (such as a file server)

• You want to configure LVM
• You have more than one hard drive and want to configure software RAID
• You want to delete existing operating systems on the hard drive to free up space for your SLES 11
installation.
PTS: 1

REF: 179

8. What are some of the differences between the file system concept of Linux and that of other operating
systems?
ANS:
The file system concept of Linux (and, in general, of all UNIX systems) is considerably different than
that of other operating systems:
• Files in the file systems can be spread out over several devices. Each file system can be “mounted”
any place in the directory hierarchy. With other file systems, each file system is placed on the same
level, at the top. With Linux, the file systems can be placed at lower levels of the directory structure.


• A filename in Linux can be up to 255 characters long. It can contain special characters (“_” or “%”,
for example).
• Certain characters (the dollar sign “$”, the semicolon “;”, or the space, for example) have a special
significance for shells, such as Bash. If you want to use one of these characters without the associated
special meaning, the character must be preceded by a “\” (backslash) to mask (switch off) its special
meaning.
• You can use umlauts, letters with diacritical marks, or other language-specific characters.
• Linux differentiates between upper-case and lower-case letters. For example, the file names
Invoice, invoice, and INVOICE refer to three different files.
PTS: 1

REF: 218

9. What does the /boot/ directory contain?
ANS:
Similar to the C:\Windows\System directory in Windows, the /boot/ directory contains system
files. Specifically, it contains:
• Static files related to the boot loader GRUB. These files (with the exception of configuration files)
are required for the boot process.
• The backed-up information for the Master Boot Record (MBR) and the system map files.
• The kernel, which has the file name vmlinuz. According to the FHS, however, the kernel can also
be located directly in the root directory.
PTS: 1

REF: 221

10. Where are directories created for removable media? What are their names?
ANS:
All files accessible in a Linux system are arranged in one big tree, the file hierarchy, rooted at /. These
files can be spread out over several devices. The mount command attaches a device’s file system to
the big file tree.
SLES 11 creates directories in the /media/ directory for mounting removable media when detecting
media:
• /media/floppy/. Created for a floppy disk drive.
• /media/cdrom/. Created for a CD-Rom drive.
• /media/cdrecorder/. Created for a CD burner.
• /media/dvd/. Created for a DVD drive.
• /media/usbdisk/. Created for a USB stick.
• /media/media_name/. Created after inserting a labeled removable media.
PTS: 1

REF: 225