14 KiB
14 KiB
| 1 | LEVEL | ANSWER | QUESTION | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|
| 2 | 101-500 | 3 | Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination? | /etc/keys | /proc/keys | /etc/inittab | /proc/inittab | /etc/reboot |
| 3 | 101-500 | 3 4 | Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct answers.) | shutdown -R 1 now | shutdown -single now | init 1 | telinit 1 | runlevel 1 |
| 4 | 101-500 | 5 | Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target? | systemd.target=rescue.target | systemd.runlevel=rescue.target | systemd.service=rescue.target | systemd.default=rescue.target | systemd.unit=rescue.target |
| 5 | 101-500 | 2 4 | What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.) | Entries for all possible devices get created on boot even if those devices are not connected. | Additional rules for udev can be created by adding them to /etc/udev/rules.d/. | When using udev, it is not possible to create block orcharacter devices in /dev/ using mknod. | The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup. | The content of /dev/ is stored in /etc/udev/dev and is restored during system startup. |
| 6 | 101-500 | 3 | To what environment variable will you assign or append a value if you need to tell the dynamic linker to look in a build directory for some of a program's shared libraries? | LD_LOAD_PATH | LD_LIB_PATH | LD_LIBRARY_PATH | LD_SHARE_PATH | LD_RUN_PATH |
| 7 | 101-500 | 1 2 4 | When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct answers.) | Timestamps | MD5 checksums | Inodes | File sizes | GnuPG signatures |
| 8 | 101-500 | 2 | Which of the following commands can be used to perform a full text search on all available packages on a Debian system? | apt | apt-cache | apt-get | apt-search | dpkg |
| 9 | 101-500 | 2 | Which of the following commands can be used to download the RPM package kernel without installing it? | yum download --no-install kernel | yumdownloader kernel | rpm --download --package kernel | rpmdownload kerne | |
| 10 | 101-500 | 4 | What happens after issuing the command vi without any additional parameters? | vi starts and loads the last file used andmoves the cursor to the position where vi was when it last exited. | vi starts and requires the user to explicitly either create a new or load an existing file. | vi exits with an error message as it cannot be invoked without a file name to operate on. | vi starts in command mode and opens a new empty file. | vi starts and opens a new file which is filled with the content of the vi buffer if the buffer contains text. |
| 11 | 101-500 | 4 | Which of the following commands will print the last 10 lines of a text file to the standard output? | cat -n 10 filename | dump -n 10 filename | head -n 10 filename | tail -n 10 filename | |
| 12 | 101-500 | 2 | Which of the following commands displays the contents of a gzip compressed tar archive? | gzip archive.tgz | tar xvf - | tar ztf archive.tgz | gzip -d archive.tgz | tar tvf - | tar cf archive.tgz | |
| 13 | 101-500 | 4 | In the vi editor, which of the following commands will copy the current line into the vi buffer? | c | cc | 1c | yy | 1y |
| 14 | 101-500 | 2 | In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories? | -dirmax | -maxdepth | -maxlevels | -n | -s |
| 15 | 101-500 | 4 | What is the purpose of the Bash built-in export command? | It allows disks to be mounted remotely. | It runs a command as a process in a subshell. | It makes the command history available to subshells. | It sets up environment variables for applications. | It shares NFS partitions for use by other systems on the network. |
| 16 | 101-500 | 2 | Which of the following explanations are valid reasons to run a command in the background of your shell? | The command does not need to execute immediately. | The command has to run immediately but the user needs to log out. | The system is being shut down and the command needs to restart execution immediately after the reboot. | The command can run at a lower priority than normal commands run on the command line. | |
| 17 | 101-500 | 4 | A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory? | rmdir '~/\dir' | rmdir ~/'dir' | rmdir ~/\dir | rmdir ~/\\dir | |
| 18 | 101-500 | 2 | Regarding the command: nice -5 /usr/bin/prog Which of the following statements is correct? | /usr/bin/prog is executed with a nice level of -5. | /usr/bin/prog is executed with a nice level of 5. | /usr/bin/prog is executed with a priority of -5. | /usr/bin/prog is executed with a priority of 5. | |
| 19 | 101-500 | 4 | Which of the following commands instructs SysVinit to reload its configuration file? | reinit | initreload | telinit 7 | telinit q | init reinit |
| 20 | 101-500 | 4 | What does the command mount -a do? | It mounts all available filesystems onto the current directory. | It shows all mounted filesystems. | It mounts all user mountable filesystems for thecurrent user. | It mounts all filesystems listed in /etc/fstab which have the option auto set. | It mounts all filesystems listed in /etc/fstab which have the option noauto set. |
| 21 | 101-500 | 5 | Which of the following commands can be used to locate programs and their corresponding man pages and configuration files? | dirname | which | basename | query | whereis |
| 22 | 101-500 | 4 | Which of the following settings for umask ensures that new files have the default permissions -rw-r----- ? | 0017 | 0640 | 0038 | 0027 | |
| 23 | 101-500 | 3 | In Bash, inserting 2>&1 after a command redirects: | standard error to standard input. | standard input to standard error. | standard output to standard error. | standard error to standard output. | standard outputto standard input. |
| 24 | 101-500 | 4 | What is the purpose of the Filesystem Hierarchy Standard? | It is a security model used to ensurefiles are organized according to their permissions and accessibility. | It provides unified tools to create, maintain and manage multiple filesystems in a common way. | It defines a common internal structure of inodes for all compliant filesystems. | It is a distribution neutral description of locations of files and directories. | |
| 25 | 101-500 | 1 | Which command is used to query information about the available packages on a Debian system? | apt-cache | apt-get | apt-search | dpkg | dpkg-search |
| 26 | 101-500 | 4 | Which of the following options must be passed to a filesystem’s entry in /etc/fstab in order to mount the file system without root privileges? | auto | norestrict | noauto | user | |
| 27 | 101-500 | 2 | Which of the following commands will print important system information such as the kernel version and machine hardware architecture? | sysinfo | uname | lspci | arch | info |
| 28 | 101-500 | 1 | Which of the following commands will change the quota for a specific user? | edquota | repquota | quota -e | quota | |
| 29 | 101-500 | 4 | How can the list of files that would be installed by the RPM package file apache-xml.rpm be previewed? | rpm –qp apache-xml.rpm | rpm –qv apache-xml.rpm | rpm –ql apache-xml.rpm | rpm –qpl apache-xml.rpm | |
| 30 | 101-500 | 3 | Which of the following commands will mount an already inserted CD-ROM in /dev/sr0 onto an existing directory /mnt/cdrom when issued with root privileges? | mount /dev/cdrom /mnt/cdrom | mount /dev/sr0 /mnt/cdrom | mount –t cdrom /dev/sr0 /mnt/cdrom | mount –l cdrom /dev/sr0 /mnt/cdrom | mount –f /dev/sr0/mnt/cdrom |
| 31 | 101-500 | 4 | Which of the following shell commands makes the already defined variable TEST visible to new child processes? (Choose two.) | visible TEST | declare +x TEST | declare –x TEST | export TEST | export –v TEST |
| 32 | 101-500 | 3 | Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created? | File size | Modify timestamp | Link count | Inode number | Permissions |
| 33 | 101-500 | 4 | Which signal is sent by the kill command by default? | SIGHUP(1) | SIGQUIT(3) | SIGKILL(9) | SIGTERM(15) | |
| 34 | 101-500 | 1 | Which of the following commands can be used to create a new file that is 100kB in size? | dd | file | mkfile | touch | |
| 35 | 101-500 | 4 | Which chown command will change the ownership to dave and the group to staff on a file named data.txt? | chown dave/staff data.txt | chown –u dave –g staff data.txt | chown --user dave --group staff data.txt | chown dave:staff data.txt | |
| 36 | 101-500 | 3 | Which of the following commands shows the definition of a given shell command? | where | stat | type | case | |
| 37 | 101-500 | 2 | After running the command umount /mnt, the following error message is displayed: umount: /mnt: device is busy. What is a common reason for this message? | The kernel has not finished flushing disk writes to themounted device. | A user has a file open in the /mnt directory. | Another file system still contains a symlink to a file inside /mnt. | The files in /mnt have been scanned and added to the locate database. | The kernel thinks that a process is about toopen a file in /mnt for reading. |
| 38 | 101-500 | 3 | Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH? | apropos | which | find | query | whereis |
| 39 | 101-500 | 3 | Which of the following commands changes the number of days before the ext3 filesystem on /dev/sda1 has to run through a full filesystem check while booting? | tune2fs -d 200 /dev/sda1 | tune2fs -c 200 /dev/sda1 | tune2fs -i 200 /dev/sda1 | tune2fs -n 200 /dev/sda1 | tune2fs --days 200 /dev/sda1 |
| 40 | 101-500 | 3 | Which of the following file permissions belong to a symbolic link? | -rwxrwxrwx | +rwxrwxrwx | lrwxrwxrwx | srwxrwxrwx | |
| 41 | 101-500 | 4 5 | Which of the following properties of a Linux system should be changed when a virtual machine is cloned? (Choose two.) | The partitioning scheme | The file system | The D-Bus Machine ID | The permissions of /root/ | The SSH host keys |
| 42 | 101-500 | 1 5 | When is the content of the kernel ring buffer reset? (Choose two.) | When the ring buffer is explicitly reset using the command dmesg --clear | When the ring buffer is read using dmesg without any additional parameters | When a configurable amount of time, 15 minutes by default, has passed | When the kernel loads a previously unloaded kernel module | When the system is shut down or rebooted |
| 43 | 101-500 | 5 | Which of the following apt-get subcommands installs the newest versions of all currently installed packages? | auto-update | dist-upgrade | full-upgrade | install | update |
| 44 | 101-500 | 5 | When redirecting the output of find to the xargs command, what option to find is useful if the filenames contain spaces? | –rep-space | -printnul | -nospace | –ignore-space | –print0 |
| 45 | 101-500 | 1 | What output will be displayed when the user fred executes the following command? echo ‘fred $USER’ | fred fred | fred /home/fred/ | ‘fred $USER’ | fred $USER | ‘fred fred’ |
| 46 | 101-500 | 1 4 | Which of the following statements are true about the boot sequence of a PC using a BIOS? (Choose two.) | Some parts of the boot process can be configured from the BIOS | Linux does not require the assistance of the BIOS to boot a computer | The BIOS boot process starts only if secondary storage, such as the hard disk, is functional | The BIOS initiates the boot process after turning the computer on | The BIOS is started by loading hardware drivers from secondary storage, such as the hard disk |
| 47 | 101-500 | 5 | Given a log file loga.log with timestamps of the format DD/MM/YYYY:hh:mm:ss, which command filters out all log entries in the time period between 8:00 am and 8:59 am? | grep –E ‘:08:[09]+:[09]+’ loga.log | grep –E ‘:08:[00]+’ loga.log | grep –E loga.log ‘:08:[0-9]+:[0-9]+’ | grep loga.log ‘:08:[0-9]:[0-9]’ | grep –E ‘:08:[0-9]+:[0-9]+’ loga.log |
| 48 | 101-500 | 2 4 | Which of the following files exist in a standard GRUB 2 installation? (Choose two.) | /boot/grub/stages/stage0 | /boot/grub/i386-pc/1vm.mod | /boot/grub/fstab | /boot/grub/grub.cfg | /boot/grub/linux/vmlinuz |
| 49 | 101-500 | 1 | Which of the following commands changes all CR-LF line breaks in the text file userlist.txt to Linux standard LF line breaks and stores the result in newlist.txt? | tr –d ‘\r’ < userlist.txt > newlist.txt | tr –c ‘\n\r’ ‘’ <newlist.txt> userlist.txt | tr ‘\r\n’ ‘’ <userlist.txt> newlist.txt | tr ‘\r’ ‘\n’ userlist.txt newlist.txt | tr –s ‘/^M/^J/’ userlist.txt newlist.txt |
| 50 | 101-500 | 1 | What does the command mount --bind do? | It makes the contents of one directory available in another directory | It mounts all available filesystems to the current directory | It mounts all user mountable filesystems to the user’s home directory | It mounts all file systems listed in /etc/fstab which have the option userbind set | It permanently mounts a regular file to a directory |
| 51 | 101-500 | 3 | It permanently mounts a regular file to a directory | d2 | 2d | 2dd | dd2 | de12 |
| 52 | 101-500 |