Questions, Answers, Braindumps (XK0-002)
to all and thanks to www.exams.ws and www.4exam.com
But there’s no need to have it from both of
them, only questions from only one are sufficient
I think. Here is my contribution.
On an NIS client, the following is a portion of the
output of cat /etc/passwd:
Which of the following is true for all users other
than Joe and Sam?
A. They have full access.
B. They are denied access.
C. They are granted limited access.
D. They gain access after being prompted for a shell.
login denied users are displayed with + symbol at
the starting of line.
How can a user view an X Window from a remote system
on their local system?
A. from the local system:
B. from the remote system:
C. from the local system:
D. from the remote system:
First Local host should give the permission to display
the X Terminal on local host using xhost command.
Then user can export the display from remote host.
See the example
Suppose you want to run application on Abc B from
Abc B in GUI Terminal:# xhost +192.168.0.1
Abc A in GUI Terminal:# export DISPLAY=192.168.0.2:0
# xterm &
Now Terminal of Abc A will display on Abc B
Which of the following commands can be used to confirm
that the FTP server is listening?
A. netstat -a ftp
B. netstat | grep ftp
C. netstat -u | grep ftp
D. netstat -a | grep ftp
netstat is the multipurpose command, it can list active
network connections, routing tables, interface statistics
and other vital network information.
Syntax: netstat [options]
-a à List listening and connected sockets
-t à List TCP connection
-u à List UDP Connection
-p à Show PID and name of the program.
When a RAID 5 array is configured with a hot-spare
disk under Linux, which of the following is the minimum
number of drives required?
RAID 5 is the most common type of RAID. By distributing
parity information across some or all of an array's
member disk drives, RAID 5 eliminates the write bottleneck
of using one parity disk.
The minimum requirements for RAID 5 is 3 disks. According
to questions, 3 disks for RAID Level 5 and one spare
disk so total 4.
A system administrator wants to see if an RPM package
is installed on a user workstation. Which of the following
commands should be used?
A. rpm -query <filename>
B. rpmfind <name of package>
C. rpm -qa | grep <name of package>
D. find -name rpm | grep <filename>
RPM format packages can manage using rpm command.
to query the package either installed or not,
rpm -q packagename
To list all installed package:
rpm -qa packagename
Which of the following can be used to determine who
has scheduled a job?
C. at -d
D. at -l
Which of the following encryption schemes is the LEAST
The Data Encryption Standard, a block cipher with
64-bit blocks and a 56-bit key Like MD4, it produces
a 128-bit hash. For details see RFC 1321
AES ciphers use a 128-bit block and 128, 192 or 256-bit
A block cipher using 64-bit blocks and keys of up
to 448 bits
A Linux machine has a local address of 192.168.1.1
with subnet mask of 255.255.255.0. All services are
currently denied. Which of the following lines should
be appended to hosts.allow file to permit access to
the Web service on the local subnet.
A. httpd: 192.168.1.0/24
B. ALL: 192.168.1.255/24
C. ALL except httpd: 192.168.1.1/24
The /etc/hosts.allow and /etc/hosts.deny each have
two or more colon-separated fields.
The first filed specifies the comma separated list
of executable name . The second field contains a comma-separated
list of client specifications, using IP address or
host name or network name.
httpd: 192.168.1.0/24 à specified the network
vsftpd: .example.com à specified the domain.
A Linux administrator is about to install a Linux
server. The server has 256MB of RAM. Which of the
following sizes of the swap partition is generally
Swap space in Linux is used when the amount of physical
memory (RAM) is full. If the system needs more memory
resources and the RAM is full, inactive pages in memory
are moved to the swap space. While swap space can
help machines with a small amount of RAM, it should
not be considered a replacement for more RAM. Swap
space is located on hard drives, which have a slower
access time than physical memory. Swap space can be
a dedicated swap partition (recommended), a swap file,
or a combination of swap partitions and swap files.
The size of your swap should be equal to twice your
computer's physical RAM for up to 2 GB of physical
For physical RAM above 2 GB, the size of your swap
should be equal to the amount of physical RAM above
2 GB. The size of your swap should never less than
32 MB. Using this basic formula, a system with 2 GB
of physical RAM would have 4 GB of swap, while one
with 3 GB of physical RAM would have 5 GB of swap.
Which driver, if any, is required to support L3 cache
on the system processor?
D. No driver is required.
To Support L3 cache on the system processor, no any
driver is required.