[2025年04月最新リリース]1Z0-106試験問題はあなたをパスさせる
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質問 # 31
Which two statements are true about systemd system and service manager?
- A. systemd is the first process that starts after the system boots and is the final process left running before the system shuts down.
- B. systemd reads /etc/system to determine which services to start.
- C. The service command is used to start and stop system service units.
- D. systemd service units expose kernel devices and can be used to implement device-based activation.
- E. systemd is backward-compatible with the System V init scripts that were used in earlier versions of Oracle Linux.
正解：A、E
解説：
Explanation of Answer B:systemdis the first process to start (PID 1) after the Linux kernel has booted and is responsible for initializing the user space and managing system services throughout the system's runtime. It is also the last process to stop during shutdown.
Explanation of Answer C:systemdmaintains backward compatibility with older System V init scripts. It can run and manage these scripts, ensuring legacy services are supported while providing newer functionalities through nativesystemdunit files.
質問 # 32
As root you configured a file system using AutoFS with default settings. In the first session, you changed to a directory under AutoFS control. In a second session, you changed to /etc. Now the idle time for the session expires. Which two statements are true about the status of the file system mounted in the first session?
- A. It remains mounted as long as the system is running.
- B. It was unmounted from the first session when the timer expired.
- C. It remains mounted until you log out from the first session.
- D. It remains mounted until you switch to a directory outside the current mount point.
- E. It was unmounted when the second session began.
正解：C、D
解説：
Understanding AutoFS Behavior:
* AutoFSautomatically mounts file systems when accessed and unmounts them after a period of inactivity (default is 5 minutes).
* A file system remains mounted as long as it isactive, meaning processes are accessing files or directories within it.
Scenario Analysis:
* First Session:
* Changed to a directory under AutoFS control (mount point is active).
* Second Session:
* Changed to /etc (does not affect the first session).
* Idle Time Expires:
* AutoFS checks for idle mounts to unmount.
Implications:
* The mount point remainsactivebecause the shell in the first session is in the AutoFS directory.
* AutoFS willnotunmount the file system while it is active.
Oracle Linux Reference:
* OracleLinux 8: Configuring File Systems-Using the Automounter:
"A file system remains mounted as long as there are open files or directories within it." Correct Options:
* Option B:The file system remains mounted until you log out from the first session.
* Option E:The file system remains mounted until you switch to a directory outside the current mount point.
Why Other Options Are Incorrect:
* Option A:Incorrect because the mount does not persist indefinitely; it's unmounted when no longer active.
* Option C:Incorrect because the mount is still active; the timer does not cause unmounting in this case.
* Option D:Incorrect because the second session does not influence the mount status in the first session.
質問 # 33
Examine this command and output:
$ ftp host01.example.com
Connected to host01.example.com (192.168.40.131).
220 (vsFTPd 3.0.2)
Name (host01.example.com:oracle):
After entering a carriage return, this error message is displayed:
530 Permission denied
Login Failed
ftp>
Why is the oracle user denied access to the FTP server on host01.example.com?
- A. The oracle user is listed in /etc/vsftpd/user_list and USERLIST_ENABLE is set to NO in /etc/vsftpd
/vsftpd.conf. - B. The oracle user is listed in /etc/vsftpd/user_list and USERLIST_ENABLE is set to YES in /etc/vsftpd
/vsftpd.conf. - C. The oracle user does not exist on host01.example.com.
- D. The oracle user is listed in /etc/vsftpd/ftpusers.
- E. LOCAL_ENABLE is set to NO in /etc/vsftpd/vsftpd.conf.
正解：B
解説：
The530 Permission deniederror indicates that the user is not allowed to log in. In vsFTPd, if theUSERLIST_ENABLEoption is set toYESin/etc/vsftpd/vsftpd.conf, and theoracleuser is listed in/etc/vsftpd
/user_list, that user is explicitly denied access to the FTP server.
質問 # 34
Examine these commands and output:
# cat /etc/auto.master
/net -hosts
/- auto.direct ro
# cat /etc/auto.direct
/nfs1 host01:/export/share1
/nfs2 -sync host01:/export/share2
/nfs3 host02:/export/share3
Automounter must be used to mount these filesystems. Which mount options will it use?
- A. /nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-only, sync.
- B. /nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-write, sync.
- C. All three filesystems are mounted read-only, sync.
- D. All three filesystems are mounted read-only, async.
- E. All three filesystems are mounted read-write, sync.
正解：A
質問 # 35
Examine these commands executed by root:
# mkdir -p /jail /jail/bin /jail/lib64
# cp $(which bash) /jail/bin/
# ldd $(which bash)
linux-vdso.so.1 (0x00007ffd574f5000)
libtinfo.so.6 => /lib64/libtinfo.so.6 (0x00007fb458c2c000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007fb458a28000)
libc.so.6 => /lib64/libc.so.6 (0x00007fb458666000)
/lib64/ld-linux-x86-64.so.2 (0x00007fb459177000)
# cp /lib64/libtinfo.so.6 /jail/lib64/
# cp /lib64/libdl.so.2 /jail/lib64/
# cp /lib64/libc.so.6 /jail/lib64/
# cp /lib64/ld-linux-x86-64.so.2 /jail/lib64/
# chroot /jail
What is the output from the cd, pwd, and ls commands?
- A. bash-4.4# cd
bash: cd: /root: No such file or directory
bash-4.4# pwd
/
bash-4.4# ls
bin lib64 - B. bash-4.4# cd
bash: cd: command not found
bash-4.4# pwd
bash: pwd: command not found
bash-4.4# ls
bash: ls: command not found - C. bash-4.4# cd
bash: cd: /root: Unable to access chrooted file or directory /root
bash-4.4# pwd
/
bash-4.4# ls
bin lib64 - D. bash-4.4# cd
bash: cd: /root: No such file or directory
bash-4.4# pwd
/root
bash-4.4# ls
bash: ls: command not found
正解：A
質問 # 36
Which two methods of changing kernel parameters can you use to modify values for the running system?
- A. Using the echo command to write values to specific files in the /proc/sys directory.
- B. Using the echo command to write values to specific files in the /sys directory.
- C. Adding to or modifying parameters and values in the /etc/sysctl.conf file followed by issuing the sysctl - p command.
- D. Issuing the sysctl -w command to write values to specific files in the /proc/sys directory.
- E. Issuing the sysctl -w command to write values to specific files in the /sys directory.
正解：A、D
解説：
Explanation of Answer A:Thesysctl -wcommand is used to modify kernel parameters at runtime. It allows you to set the value of a specific parameter in the/proc/sysdirectory. For example,sysctl -w net.ipv4.
ip_forward=1will enable IP forwarding by writing the value directly to the corresponding file in/proc/sys.
Explanation of Answer B:Using theechocommand to write values directly to specific files in the/proc
/sysdirectory is another method to change kernel parameters dynamically for the running system. For instance, echo 1 > /proc/sys/net/ipv4/ip_forwardachieves the same effect as thesysctl -wcommand.
質問 # 37
Which command produces human-readable timestamps in kernel ring buffer messages?
- A. dmesg -T
- B. dmesg -t
- C. dmesg -x
- D. dmesg -W
正解：A
質問 # 38
Which two statements are true about control groups (cgroups) in Oracle Linux 8?
- A. Oracle Linux 8 implements cgroups v2 by default.
- B. A cgroup is a collection of processes bound to a set of limits or parameters defined in the cgroups filesystem.
- C. The cgroups filesystem allows limits to be overwritten in the lower levels of the hierarchy.
- D. Cgroups allow processes to be organized into hierarchical groups whose resource usage cannot be limited and monitored.
- E. Different controllers from cgroups version 1 and cgroups version 2 cannot be used at the same time.
正解：A、B
解説：
Explanation of Answer A:Oracle Linux 8 uses cgroups version 2 (cgroups v2) by default. cgroups v2 is a unified hierarchy system that introduces improvements over version 1, including a simplified interface and better resource management capabilities.
Explanation of Answer B:A control group (cgroup) is a mechanism for grouping processes and setting limits or parameters on their resource usage, such as CPU, memory, or I/O. These limits and parameters are configured and managed through the cgroups filesystem.
質問 # 39
Examine this udev device naming rule which gets processed successfully:
makefile
KERNEL=="hdb", DRIVER=="ide-disk", SYMLINK+="sparedisk"
Which two statements are true?
- A. Symbolic link /dev/sparedisk is created for a device named /dev/hdb which has an ide-disk device driver if such a device is discovered.
- B. Symbolic link /dev/sparedisk is created for a device named /dev/hdb or one that has an ide-disk device driver, whichever is discovered first.
- C. The matching device will have the kernel device name /dev/hdb.
- D. The matching device will be named /dev/sparedisk.
- E. Symbolic link /dev/sparedisk is created linking to /dev/hdb and with an ide-disk device driver, thus overwriting existing symbolic links.
正解：A、C
解説：
Option C (Correct):If a device named/dev/hdbwith theide-diskdriver is discovered, a symbolic link/dev
/sparediskwill be created, pointing to/dev/hdb.
Option D (Correct):TheKERNEL=="hdb"match specifies that the device will have the kernel device name
/dev/hdb.
Option A (Incorrect):This is incorrect because existing symbolic links are not overwritten unless explicitly defined.
Option B (Incorrect):The device itself is not renamed to/dev/sparedisk; rather, a symbolic link is created.
Option E (Incorrect):The rule specifically requires bothKERNEL=="hdb"andDRIVER=="ide-disk"to match; it is not an either/or condition.
質問 # 40
Examine these Kubernetes components:
Which option correctly matches the components with their description?
- A. 1-a, 2-d, 3-b, 4-c, 5-e, 6-f
- B. 1-d, 2-f, 3-c, 4-e, 5-a, 6-b
- C. 1-c, 2-f, 3-d, 4-b, 5-e, 6-a
- D. 1-b, 2-a, 3-e, 4-c, 5-f, 6-d
- E. 1-d, 2-f, 3-e, 4-a, 5-c, 6-b
正解：B
質問 # 41
Which two statements are true about the at and batch commands?
- A. batch schedules the execution of recurring tasks.
- B. batch executes a task when the system load average is greater than 0.8.
- C. Both at and batch read from standard input, or you can specify a file and execute the commands with the -f option.
- D. at schedules the execution of recurring tasks.
- E. at executes a one-time task to run at a specific time.
正解：C、E
質問 # 42
Which two statements are true about the GRUB 2 bootloader?
- A. Its configuration file is /boot/grub2/grub2.conf on BIOS-based systems.
- B. It can load many free operating systems directly and chain-load proprietary operating systems.
- C. Its configuration can be changed by editing /etc/default/grub2 and executing grub2-mkconfig to regenerate grub2.cfg.
- D. It understands file systems and kernel executable formats, allowing the loading of operating systems without recording the on-disk physical location of the kernel.
正解：B、D
質問 # 43
Which two statements are true about the GRUB 2 bootloader?
- A. Its configuration file is /boot/grub2/grub2.conf on BIOS-based systems.
- B. It can load many free operating systems directly and chain-load proprietary operating systems.
- C. Its configuration can be changed by editing /etc/default/grub2 and executing grub2-mkconfig to regenerate grub2.cfg.
- D. It understands file systems and kernel executable formats, allowing the loading of operating systems without recording the on-disk physical location of the kernel.
正解：B、D
解説：
GRUB 2 (GRand Unified Bootloader version 2) is a bootloader that is capable of loading a variety of free operating systems directly. It also supports chain-loading, which is the process of loading other bootloaders.
This feature allows it to boot proprietary operating systems, such as Windows, by passing control to their respective bootloaders. This flexibility makes GRUB 2 a popular choice for dual-boot or multi-boot configurations.
Explanation of Answer D:GRUB 2 has the capability to understand multiple file systems (like ext2/3/4, Btrfs, XFS, etc.) and kernel executable formats. This capability means GRUB 2 does not rely on the physical location of a kernel on the disk to load an operating system. Instead, it reads the file system to locate the kernel file. This feature adds flexibility and ease in managing boot entries and reduces the complexity involved in locating kernels manually.
質問 # 44
Examine this network configuration:
NAME="ens4"
DEVICE="ens4"
ONBOOT=no
NETBOOT=yes
IPV6INIT=yes
BOOTPROTO=none
IPADDR=192.168.2.5
PREFIX=24
GATEWAY=192.168.2.1
TYPE=Ethernet
Which two statements are true after executing nmcli con mod ens4 ipv4.method auto?
- A. BOOTPROTO value is set to dhcp.
- B. IPADDR value is considered null.
- C. ONBOOT value is set to dhcp.
- D. Interface ens4 is assigned an IP address of 192.168.2.5.
- E. ONBOOT value is set to yes.
- F. Interface ens4 automatically starts on boot.
正解：A、E
質問 # 45
Examine this command:
# cryptsetup luksOpen /dev/xvdd1 cryptfs
What happens upon execution?
- A. It creates the /dev/mapper/cryptfs device mapping file.
- B. It creates the /dev/mapper/xvdd1/cryptfs device mapping file.
- C. It creates the LUKS partition on /dev/xvdd1.
- D. It creates the /dev/mapper/xvdd1-cryptfs device mapping file.
- E. It creates the /dev/mapper/xvdd1 device mapping file.
正解：A
解説：
The commandcryptsetup luksOpen /dev/xvdd1 cryptfsis used to open an encrypted LUKS partition. This command maps the encrypted block device/dev/xvdd1to a decrypted block device that is accessible under/dev
/mapper/cryptfs.
* Option A (Correct):This is correct because thecryptsetup luksOpencommand creates a device mapping under/dev/mapper/with the name specified (cryptfsin this case). This mapping allows you to access the encrypted content of/dev/xvdd1through the decrypted virtual device/dev/mapper/cryptfs.
* Options B, C, D, E (Incorrect):These options are incorrect because they do not accurately reflect the standard behavior of thecryptsetup luksOpencommand. The device created will always be in the format
/dev/mapper/<name>where<name>is the alias specified in the command.
Oracle Linux Reference:For more information, refer to:
* OracleLinux 8: Managing Storage Devices
* man cryptsetupfor more details on theluksOpencommand and LUKS management.
質問 # 46
Which two statements are true about removing a physical volume (PV) from a volume group (VG)?
- A. It can be removed when an inactive logical volume is on the VG.
- B. It can be removed when it is part of an active VG.
- C. It cannot be removed when it is part of an active VG.
- D. It can be removed only after removing it from its VG by using vgreduce.
- E. It can be removed when an active VG has mounted file systems by running vgexport.
正解：C、D
質問 # 47
Examine these requirements for a host with a user oracle:
Network services must run in a confined domain.
The oracle user must be confined.
The oracle user must be able to use Mozilla Firefox.
Access to files and directories must be granted based only on SELinux contexts.
The SELinux configuration must be persistent across system restarts.
Users must be able to publish private HTML content.
Now examine these commands and output:
# sestatus
SELinux status: enabled
SELinuxfs mount: /sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: targeted
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: actual (secure)
Max Kernel policy version: 31
# setenforce enforcing
# semanage login -a -s guest_u oracle
# setsebool -P http_enable_homedirs on
Which requirements are satisfied?
- A. 1, 2, 3, 5, 6
- B. 1, 2, 4, 6
- C. 1, 2, 4, 5, 6
- D. 1, 2, 6
- E. 1, 2, 3, 4, 5, 6
- F. 1, 2, 3, 6
正解：C
質問 # 48
Examine this command and output:
# ausearch -k mkdir
type=SYSCALL msg=audit(1604360199.719:44733): arch=c000003e syscall=83 success=no a0=55dec0b47400 a1=lc0 a2=0 a3=0 items=2 ppid=1354 pid=284632 auid=4294967295 uid=996 gid=996 euid=998 suid=998 fsuid=998 egid=996 sgid=996 fsgid=996 tty=(none) ses=429 comm="pkla-check-auth" exe="/usr/bin/pkla-check-authorization" subj=system_u:system_r:policykit_auth_t:s0 key="mkdir" Which command displays the syscall in text format instead of numerical format?
- A. ausearch -sc 83 -k mkdir
- B. ausearch -a 83 -k mkdir
- C. ausearch -I -k mkdir
- D. ausearch --format text -k mkdir
- E. ausearch -r -k mkdir
正解：A
質問 # 49
Examine this output:
Last metadata expiration check: 4:30:21 ago on Mon 26 Oct 2020 03:09:52 PM GMT Installed Packages Name : gzip Release : 9.el8 Architecture : x86_64 Size : 412 k Source : gzip-1.9-9.el8.src.rpm Repository : @System From repo : anaconda Summary : The GNU data compression program URL : http://www.gzip.org/ License : GPLv3+ and GFDL Description : The gzip package contains the popular GNU gzip data compression program. Gzipped files have a .gz extension.
Gzip should be installed on your system, because it is a very
commonly used data compression program.
Which command generated it?
- A. dnf list /usr/bin/gzip
- B. dnf provides /usr/bin/gzip
- C. dnf info /usr/bin/gzip
- D. dnf search /usr/bin/gzip
正解：C
質問 # 50
Which is true about the /etc/sysconfig directory in an Oracle Linux 8 system?
- A. It is used to access device and device driver information.
- B. Its contents depend on the packages installed on the system.
- C. Files in this directory hierarchy contain information about system hardware.
- D. Files in this directory hierarchy contain information about running processes.
正解：B
質問 # 51
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