If a Linux installation ends abnormally and the screen displays a fatal signal 11 error, what type of error has occurred? |
segmentation fault |
Which command below provides the easiest method for monitoring free space on mounted filesystems? |
df |
You are troubleshooting an issue that occurs on a Linux system during the boot process. What file can be viewed on most Linux systems to see processes that started successfully or unsuccessfully specifically during the boot process? |
/var/log/boot.log |
The quotas for certain users can be edited by using which command? |
edquota |
Which device file below represents the first primary partition on the second PATA hard disk drive? |
/dev/hdb1 |
What file system below is used by software programs that write to a CD-RW or DVD-RW drive? |
udf |
What command is used to manage a software RAID configuration after installation? |
mdadm |
Errors on a filesystem are common on most filesystems. What do these errors indicate? |
filesystem corruption |
What file in the /proc directory contains information about a computer’s CPU? |
/proc/cpuinfo |
Select the command that can be used to create partitions that will be stored in an MBR after installation: |
fdisk |
What hex code is associated with a Linux swap type partition? |
82 |
What file under the proc directory contains information regarding what modules are currently loaded into the Linux kernel? |
modules |
What command can be used to check different kinds of filesystems on Linux for errors? |
fsck |
Select the command that can be used to change the root filesystem to a different directory, such as when in a rescue environment. |
chroot |
Select the command below that shows the size of a directory and its contents in kilobytes: |
du |
What is the term for a ZFS managed filesystem that is created from ZFS pools? |
ZFS volume |
The mkfs command can be issued with what switch in order to specify a filesystem type? |
-t |
To mount all filesystems in the /etc/fstab file that are intended to mount at boot time, what command can be used? |
mount -a |
In the fdisk interactive mode, what letter can be used to save changes to the partition table and exit? |
W |
Data is read from physical hard drives in concentric circles known as which of the following? |
tracks |
Select the command that can be used to check an ext2, ext3, or ext4 filesystem: |
mke2fs |
In order to list all configuration parameters that can be modified for a subfilesystem, what command should be issued? |
zfs get all |
In Fedora 20, the logging system used to record the messages normally stored within the boot.log, messages, and syslog files has been replaced by a journaling database system called? |
journald |
In what filesystem are most of the operating system files contained? |
root |
Each SCSI device attached to a system must be assigned an ID number. What is this ID number called? |
target ID |
What command below can be used to create a new physical volume |
pvcreate |
Most Parallel SCSI controllers are capable of supporting up to how many devices? |
15 |
What SCSI type supports speeds of up to 80 MB/second? |
SCSI-3 Ultra2 Wide |
What file in the /proc directory contains a list of memory address ranges reserved for device use? |
ioports |
In some cases, the installation process fails to place a boot loader on the hard disk properly; this is often caused by hard drives with over what number of cylinders? |
1024 |
In the event that you wish to disable a swap partition, what command must be used? |
swapoff |
What RAID level is commonly referred to as disk striping with parity? |
RAID5 |
Select the file in the /proc directory that contains statistics on the performance of the processor: |
loadavg |
To ensure that Linux has detected the correct amount of RAM in the system after installation, you should view the contents of what file in the proc directory? |
/proc/meminfo |
The first software RAID volume on a system will use a multiple disk device file that starts with what number? |
127 |
In a SCSI chain the highest priority SCSI device is given what SCSI ID? |
7 |
What character device file represents the second serial port on a system (COM2)? |
/dev/ttyS1 |
A ZFS volume that uses a variable stripe size and requires a minimum of three hard disks to protect against single disk failure is known as: |
RAID-Z |
Which option, when used with the mount command, enables loopback mode so that an iso image can be mounted onto a directory? |
–loop |
A device that transfers data in a character-by-character fashion is referred to as what type of device? |
character |
T or F: Volumes can contain a filesystem but they can’t be mounted to directories within the Linux filesystem hierarchy |
True |
T or F: The minimum height of a rackmount server is 2 inches; this is called a 1U server. |
False |
T or F: A computer connected to a remote hard disk via iSCSI is referred to as an iSCSI initiator. |
True |
T or F: Each device attached to a system can be represented by multiple device files. |
False |
T or F: SCSI devices that act as a gateway are associated with a unique Logical Unit Number (LUN) |
True |
T or F: In Linux, you are restricted to using only one type of filesystem on a system. |
False |
T or F: You can use a small bootable Linux kernel (such as on a LiveCD) to fix problems related to the following: the boot loader; filesystems and partitions; the configuration file; and drivers. |
True |
T or F: The more filesystems that are used on a system, the less likely a corrupted filesystem will interfere with normal system operations. |
True |
T or F: RAID level 6 is basically the same as RAID level 5, but it adds a second set of parity bits for added fault tolerance and allows up to two simultaneous hard disk drive failures while remaining fault tolerant. |
True |
T or F: When you insert a DVD while in a GUI environment, it is automatically mounted by the system to a directory underneath the /media directory that is named for the label on the DVD. |
True |
UNIX 3
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