Need aswers for this very badly
Multiple Choice:
Because a USB memory key is seen by Linux as a SCSI device, which command will show you how the USB key is identified by the system?
cat SCSI > /var/log/messages
cat /var/log/messages > grep SCSI
find SCSI > /var/log/messages
grep SCSI < /var/log/messages
Multiple Choice:
When installing a new hard drive in a Linux system, several changes were made to /etc/fstab. Before the installation of the new hard drive, /etc/fstab was copied to /etc/fstab.bak. How can a summary of the changes be captured?
file -d /etc/fstab /etc/fstab.bak > /etc/fstab.changes
grep -diff /etc/fstab /etc/fstab.bak > /etc/fstab.changes
compare /etc/fstab /etc/fstab.bak > /etc/fstab.changes
diff /etc/fstab.bak /etc/fstab > /etc/fstab.changes
Multiple Choice:
After physical installation of a USB key on a Linux system, what must be done before the USB key can be utilized?
Upgrade the kernel to 2.6 or later.
Use the command 'usb enumerate' to view usb devices, then mount the device name shown.
Use the command /var/log/messages and mount the newly detected device as a SCSI drive.
Wait a few seconds for the device to be detected, then mount it as /dev/ud0.
Multiple Choice:
When transferring files to a Linux system using a floppy diskette, what should be done before removing the diskette from the floppy drive?
Set the read-only tab on the diskette.
Set the read-write tab on the diskette.
Transfer the inodes to the local system.
Unmount the diskette to avoid file corruption.
Multiple Choice:
What is required for a normal user on a Linux system to give ownership of a file to another user?
Place the file in a directory that you own. Then you can make the change.
The file needs to have 777 permissions in order to change ownership.
The file needs to have 755 permissions in order to change ownership.
Have the root user change the ownership of the file to the desired user.
Multiple Choice:
What command shows default permissions for a file you create in a Linux system?
dmask
umask
chmod -d
chgrp -d
Multiple Choice:
What command or file shows whether a Cat5 cable on a Linux system is connected to a second network interface?
cat /etc/sysconfig/interfaces
ethtool
cat /etc/sysconfig/network
netstat
Multiple Choice:
If you can ping any Linux host on a network via IP address but not by name, what needs to be done to obtain name resolution?
place an active WINS server IP address in the /etc/resolv.conf file.
place an active DNS server IP address in the /etc/resolv.conf file.
place an active DNS server IP address in the /etc/hosts file.
place an active LDAP server IP address in the /etc/yp.conf file.
Multiple Choice:
Which Linux command will load the RAID card kernel module and any dependent modules?
lsmod -e
rmmod -i
modprobe
insmod -a
Choose all that apply:
Depending on which Linux distribution is in use; when installing a new network card in a Linux system, which filenames may need to be edited to ensure the module for the network card is loaded during system boot?
/etc/modules.conf
/etc/conf.modules
/etc/initrd
/etc/inittab
Multiple Choice:
What can be done by the root user to minimize the impact of a job on a Linux system's processor?
Lower the job's priority with the [Ctrl][M] keystroke
Stop the job with the [Ctrl][Z] keystroke
Change priority with the renice command
Change priority with the nice command
Which 'signal' will usually shut down a hung process, but will not shutdown the application in an orderly manner?
Signal 15 (SIGTERM)
Signal 6 (SIGABRT)
Signal 9 (SIGKILL)
Signal 3 (SIGQUIT)
Multiple Choice:
What can be done with a Linux system's syslog daemon to reduce the number of log messages?
Change priority levels for specific facilities.
Add more actions for specific priority levels.
Increase actions for specific facility levels.
Change facility levels for specific priorities.
In the syslog.conf file, you can specify a facility to log and message severity. What else needs configuring for syslog to be useful?
A message count enabled.
Remote web server defined.
The severity range set.
An action set.
Multiple Choice:
How can a Linux system be put into a mode which allows a new root password to be set, if no Bootloader password has been set in Grub?
At boot, edit the Grub menu and modify the kernel line by appending the word ‘recovery’ to the end of the line. Then continue booting to enter runlevel 1.
At boot, edit the Grub menu and modify the kernel line by appending a '1' to the end of the line. Then continue booting to enter runlevel 1.
At the login prompt, type ‘init 2’ as the username to enter runlevel 2.
At the login prompt, type ‘ init 4’ as the username to enter runlevel 4.
Multiple Choice:
In Linux, what keystroke will switch from an X-windows session to a standard terminal without affecting the X-windows session?
[Ctrl][Alt][Del]
[Ctrl][Alt][F2]
[Ctrl][Alt][Backspace]
[Alt][Backspace]
Multiple Choice:
Which command can root use to schedule a reboot to occur in 15 minutes and alert any users?
init 6 -t 00:15:00 'This system will need to reboot in 15 minutes.'
shutdown -t 15 -r This system will need to reboot in 15 minutes.
shutdown -r +15 This system will need to reboot in 15 minutes.
reboot +15 -m 'This system will need to reboot in 15 minutes
Multiple Choice:
Which of the following statements is true of how Linux uses file extensions?
Linux doesn't necessarily need file extensions.
Extensions are required only for compressed archive files using tar and gzip (.tgz files).
All files need an extension to be recognized.
Extensions are required only for vital system configuration (.conf) files.
Multiple Choice:
Which of the following Linux commands will delete a directory and all of its files?
rm -rf [directory name]
rmdir [directory name]
mkdir -r [directory name]
rm [directory name]
Multiple Choice:
If a 1 GB USB memory key is empty and mounted at /mnt/usb on a Linux system, and a file named 'CD_Image.iso' is 650 MB, what would the 'mv /home/user1/CD_Image.iso /mnt/usb/CD_Image.iso' command’s result be?
The file is moved to the new location.
An error message is generated and no move or copy takes place.
The file is copied and the original is retained.
The file is renamed.
Please let me know the answers
thanks in advance
so care to respond please. 