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Topic 1, System Architecture
QUESTION 1
CORRECT TEXT
You suspect that a new ethernet card might be conflicting with another device.
Which file should you check within the /proc tree to learn which IRQs are being used by which kernel drivers?
Answer: interrupts, /proc/interrupts
QUESTION 2
Which of the following commands will load a kernel module along with any required dependency modules?
A. depmod
B. insmod
C. modprobe
D. module_install
E. loadmod
Answer: C
QUESTION 3
You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in.
Which command would disconnect the users and allow you to safely execute maintenance tasks?
A. telinit 1
B. shutdown -r now
C. killall -9 inetd
D. /bin/netstop –maint
E. /etc/rc.d/init.d/network stop
Answer: A
QUESTION 4
CORRECT TEXT
Which command displays the contents of the Kernel Ring Buffer on the command line? (Provide only the command name without any options or path information)
Answer: dmesg, /bin/dmesg
QUESTION 5
CORRECT TEXT
The USB device filesystem can be found under /proc/______/usb/. (Please fill in the blank with the single word only)
Answer: bus
QUESTION 6
CORRECT TEXT
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel?
Answer: cmdline, /proc/cmdline
QUESTION 7
During a system boot cycle, what is the program that is run after the BIOS completes its tasks?
A. The bootloader
B. The inetd program
C. The init program
D. The kernel
Answer: A
QUESTION 8
Which of the following commands will write a message to the terminals of all logged in users?
A. bcast
B. mesg
C. print
D. wall
E. yell
Answer: D
QUESTION 9
The message “Hard Disk Error” is displayed on the screen during Stage 1 of the GRUB boot process.
What does this indicate?
A. The kernel was unable to execute /bin/init
B. The next Stage cannot be read from the hard disk because GRUB was unable to determine the size and geometry of the disk
C. One or more of the filesystems on the hard disk has errors and a filesystem check should be run
D. The BIOS was unable to read the necessary data from the Master Boot Record to begin the boot process
Answer: B
QUESTION 10
CORRECT TEXT
Which command will display messages from the kernel that were output during the normal bootup sequence?
Answer: dmesg, /bin/dmesg
QUESTION 11
What is the process ID number of the init program?
A. -1
B. 0
C. 1
D. It is different with each reboot.
E. It is set to the current run level.
Answer: C
QUESTION 12
Which configuration file should be modified to disable the ctrl-alt-delete key combination?
A. /etc/keys
B. /proc/keys
C. /etc/inittab
D. /proc/inittab
E. /etc/reboot
Answer: C
QUESTION 13
CORRECT TEXT
The system configuration file named _______ is commonly used to set the default runlevel. (Please provide the file name with full path information)
Answer: /etc/inittab
QUESTION 14
The system is having trouble and the engineer wants to bypass the usual /sbin/init start up and run /bin/sh.
What is the usual way to pass this change to the kernel from your boot loader?
A. Start in runlevel 1.
B. Pass init=/bin/sh on the kernel parameter line.
C. Pass /bin/sh on the kernel parameter line.
D. Pass start=/bin/sh on the kernel parameter line.
Answer: B
QUESTION 15
You are having some trouble with a disk partition and you need to do maintenance on this partition but your users home directories are on it and several are logged in.
Which command would disconnect the users and allow you to safely execute maintenance tasks?
A. halt 1
B. init 1
C. logout –all now
D. runlevel 1
E. shutdown –maintenance now
Answer: B
Topic 2, Linux Installation and Package Management
QUESTION 16
CORRECT TEXT
What command will print the shared libraries for the file /usr/lib/libpng12.so? (Provide the full command with library name but without any other options or parameters)
Answer: /usr/bin/ldd /usr/lib/libpng12.so, ldd /usr/lib/libpng12.so
QUESTION 17
Which file should be edited to select the network locations from which Debian installation package files are loaded?
A. /etc/dpkg/dpkg.cfg
B. /etc/apt/apt.conf
C. /etc/apt/apt.conf.d
D. /etc/apt/sources.list
E. /etc/dpkg/dselect.cfg
Answer: D
QUESTION 18
CORRECT TEXT
Typically, which top level system directory is used for files and data that change regularly while the system is running and are to be kept between reboots? (Specify only the top level directory)
Answer: /var, /var/, var, var/
QUESTION 19
CORRECT TEXT
The dpkg-____ command will ask configuration questions for a specified package, just as if the package were being installed for the first time.
Answer: reconfigure
QUESTION 20
You want to preview where the package file, apache-xml.i386.rpm, will install its files before installing it.
What command do you issue?
A. rpm -qp apache-xml.i386.rpm
B. rpm -qv apache-xml.i386.rpm
C. rpm -ql apache-xml.i386.rpm
D. rpm -qpl apache-xml.i386.rpm
Answer: D
QUESTION 21
Which RPM command will output the name of the package which installed the file /etc/exports?
A. rpm -F /etc/exports
B. rpm -qf /etc/exports
C. rpm -Kl /etc/exports
D. rpm -qp /etc/exports
E. rpm -qi /etc/exports
Answer: B
QUESTION 22
Which of the following statements is a TRUE difference between GRUB Legacy and GRUB 2?
A. GRUB 2 no longer requires a configuration file.
B. Partition numbers start at 0 in GRUB Legacy and 1 in GRUB 2.
C. grub-mkconfig only works with GRUB Legacy if the –version 1 option is used.
D. The configuration file menu.lst (and grub.conf) have been replaced with grub.config.
Answer: B
QUESTION 23
CORRECT TEXT
An administrator has issued the following command:
grub-install –root-directory=/custom-grub /dev/sda
In which directory will new configuration files be found? (Provide the full directory path only without the filename)
Answer: /custom-grub/boot/grub/, /custom-grub/boot/grub
QUESTION 24
Which of the following commands can be used to enable a file for paging and swapping?
A. mkswap
B. swapon
C. inswap
D. modswap
Answer: B
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