[2025年04月14日] 1Z0-106のPDF問題とテストエンジンには62問があります
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質問 # 11
Examine this udev device naming rule which gets processed successfully:
makefile
KERNEL=="hdb", DRIVER=="ide-disk", SYMLINK+="sparedisk"
Which two statements are true?
- A. The matching device will be named /dev/sparedisk.
- B. The matching device will have the kernel device name /dev/hdb.
- C. 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.
- D. 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.
- 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：B、D
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 # 12
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, 4, 5, 6
- B. 1, 2, 4, 6
- C. 1, 2, 4, 5, 6
- D. 1, 2, 6
- E. 1, 2, 3, 5, 6
- F. 1, 2, 3, 6
正解：C
質問 # 13
The ss command was invoked with options to:
* limit output to all listening and non-listening TCP ports
* display ports instead of the protocols that typically use those ports
* display all available internal TCP information
* display only connections whose source or destination port is 80
Which two results are produced by the command?
- A. tcp CLOSE-WAIT 32 0 server.example.com:44732 12.21.0.15:https
- B. ESTAB 0 0 10.12.18.92:50384 169.254.169.254:80 cubic wscale:9,7 rto:201 rtt: 0.226/0.113 ato:40 mss:8948 pmtu:9000 rcvmss:1728 advmss:8948 cwnd:10 bytes_sent:142 bytes_acked:143 bytes_received:1728 segs_out:4 segs_in:3 data_segs_out:1 data_segs_in:1 send 3167433628bps lastsnd:
11351 lastrcv: 11351 lastack:11351 pacing_rate 6334867256bps delivery_rate 504112672bps delivered:
2 app_limited rcv_space:62720 rcv_ssthresh:56588 minrtt:0.142 - C. UNCONN 0 0 [::1]:323 [::]:*
- D. LISTEN 0 511 *:80 *:* cubic cwnd:10
- E. icmp6 UNCONN 0 0 *:58 *:*
正解：B、D
解説：
Explanation of Answer C:Thesscommand can be used to display all available internal TCP information, including established connections with detailed TCP metrics, which matches the output in Answer C.
Explanation of Answer D:Thesscommand can display listening ports (TCP in this case) with details like congestion control algorithms (cubic), which aligns with Answer D. The output indicates a listening TCP socket on port 80.
質問 # 14
Which two statements are true about the Oracle Linux 8 boot process?
- A. Both the vmlinuz file and the initramfs file are located in the /boot directory.
- B. The bootloader loads the initramfs file into memory and extracts the vmlinuz file into the /boot file system.
- C. The kernel loads driver modules from initramfs that are required to access the root file system.
- D. The kernel loads driver modules from vmlinuz that are required to access the root file system.
- E. The bootloader loads the initramfs file into memory and extracts the vmlinuz file into a temporary file system (tmpfs).
正解：A、C
解説：
Explanation of Answer D:Theinitramfs(initial RAM filesystem) is a temporary filesystem loaded into memory during the boot process, containing essential drivers and utilities. The kernel usesinitramfsto load necessary drivers and modules required to access the root file system, particularly if it resides on a disk that requires special drivers.
Explanation of Answer E:Both thevmlinuz(the compressed Linux kernel image) and theinitramfsfile are located in the/bootdirectory. The bootloader, such as GRUB, reads these files from/bootto start the system.
質問 # 15
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. Files in this directory hierarchy contain information about running processes.
- C. Its contents depend on the packages installed on the system.
- D. Files in this directory hierarchy contain information about system hardware.
正解：C
質問 # 16
Which are three of the network bonding modes supported in Oracle Linux 8?
- A. Split Horizon
- B. 802.3ad
- C. Active Backup
- D. Round-robin
- E. Passive Backup
- F. Poison Reverse
- G. Multicast
正解：B、C、D
質問 # 17
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. Files in this directory hierarchy contain information about running processes.
- C. Its contents depend on the packages installed on the system.
- D. Files in this directory hierarchy contain information about system hardware.
正解：C
解説：
The/etc/sysconfigdirectory contains configuration files for various system services and applications. The content of this directory depends on which packages are installed on the system. Each package may provide one or more configuration files stored in/etc/sysconfigto control its behavior.
質問 # 18
Which two statements are true about container technology?
- A. Podman, Buildah, and Skopeo are independent tools to create, run, and manage container applications across compatible Oracle Linux systems.
- B. A container application is dependent on the host operating system and kernel version.
- C. A container application built on a bare metal system cannot run on virtual machines or cloud instances.
- D. Containers package an application with the individual runtime stack.
- E. Podman requires a running daemon to function and to enable containers to start and run without root permissions.
正解：A、B
解説：
* Option B (Correct):Container applications are dependent on the host operating system's kernel because containers share the OS kernel, unlike virtual machines, which use a hypervisor. Compatibility of the host OS kernel version is required to run containers.
* Option D (Correct):Podman, Buildah, and Skopeo are container tools for managing container applications. Podman runs containers without requiring a daemon like Docker, Buildah is used to build container images, and Skopeo is used for transferring container images. These tools can operate independently of one another, providing a flexible and modular approach to container management on Oracle Linux.
* Option A (Incorrect):Container applications built on bare metal can run on virtual machines or cloud instances as long as the environment supports the container runtime.
* Option C (Incorrect):Containers do not package the entire runtime stack; they include the application and its dependencies but rely on the host OS for the kernel.
* Option E (Incorrect):Podman does not require a running daemon; one of its advantages over Docker is that it can run containers in rootless mode without needing a persistent daemon.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Podman and Containers Guide
* man podman,man buildah,man skopeofor further details on these tools.
質問 # 19
Which two statements are true about fdisk?
- A. It can partition disks larger than 2 TB by using a GPT partition table.
- B. It cannot partition disks larger than 2 TB by using a GPT partition table.
- C. fdisk -l displays disk size information for all disks.
- D. It can divide logical devices into one or more block disks called partitions.
- E. It understands GPT, MBR, and HFS partition tables.
正解：A、C
質問 # 20
Which two commands relabel an SELinux system after a reboot?
- A. Set kernel parameter autorelabel=0
- B. touch /.autorelabel
- C. Set kernel parameter selinux=0
- D. fixfiles -F relabel
- E. echo "relabel=1" > /.selinux
- F. fixfiles -F onboot
正解：B、F
質問 # 21
Which statement is true about slice units?
- A. A slice unit accepts multiple names by the creation of additional symlinks to the unit file.
- B. The system.slice contains all system services and user sessions.
- C. A slice unit is a concept for hierarchically managing resources in a group of processes.
- D. Processes in a slice unit are named at the same level as scopes and services.
正解：C
質問 # 22
Examine this command:
# ssh -L 5011:127.0.0.1:80 [email protected] -f sleep 30
Which two are true upon execution?
- A. An SSH connection process is forked to the background.
- B. A socket remains open for 30 minutes unless a connection is established.
- C. A reverse tunnel is created back to the local host on port 80.
- D. A web server is listening on port 5011.
- E. A local port forward is created between client and server.
正解：A、E
質問 # 23
Examine this command:
# cryptsetup luksOpen /dev/xvdd1 cryptfs
What happens upon execution?
- A. It creates the LUKS partition on /dev/xvdd1.
- B. It creates the /dev/mapper/xvdd1-cryptfs device mapping file.
- C. It creates the /dev/mapper/cryptfs device mapping file.
- D. It creates the /dev/mapper/xvdd1 device mapping file.
- E. It creates the /dev/mapper/xvdd1/cryptfs device mapping file.
正解：C
質問 # 24
Which command configures a fully functional and accessible interface on VLAN 800?
- A. modprobe 8021q ip link add link eth0 name eth0.800 VLAN 800 ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up
- B. modprobe 8021q ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up
- C. modprobe 8021q ip link add link eth0 name eth0.800 type vlan id 800 ip link set eth0.800 up
- D. modprobe 8021q ip link add link eth0 name eth0.800 type vlan id 800 ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up
正解：D
解説：
* Option C (Correct):This command sequence first loads the 802.1q module needed for VLAN tagging, then creates a VLAN interface (eth0.800) on the base interface (eth0), assigns an IP address (10.135.1.120/24), and sets the VLAN interface up.
* Option A, B, D (Incorrect):These options have syntactical errors or missing parameters that make them incorrect for setting up a fully functional and accessible VLAN interface.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Configuring VLANs
質問 # 25
Examine this command and output:
# cat deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
selector:
matchLabels:
app: nginx
replicas: 2
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.14.2
ports:
- containerPort: 80
Now examine this command which executes successfully:
$ kubectl create -f deployment.yaml
Which two statements are true?
- A. The command specifies port 80 as the port that the container exposes.
- B. The command creates and guarantees the availability of a specified number of identical pods.
- C. The command creates a pod named nginx.
- D. The command creates a deployment named nginx.
- E. The command specifies nginx image version 1.14.2 and will fail if the image version is not available.
正解：A、B
解説：
* Option A (Correct):The command creates a Kubernetes Deployment, which ensures the specified number of replicas (pods) are running at all times. The deployment will manage the creation and maintenance of these pods to ensure availability.
* Option D (Correct):The deployment configuration specifies that the container running inside the pod exposes port 80 (containerPort: 80).
* Option B (Incorrect):The deployment is namednginx-deployment, notnginx.
* Option C (Incorrect):The command creates a Deployment object that manages multiple pods; it does not directly create a single pod namednginx.
* Option E (Incorrect):The command specifies the nginx image version1.14.2, but it will not fail immediately if the image version is not available. Kubernetes will attempt to pull the image, and the failure will happen during that step if the image does not exist.
Oracle Linux Reference:Refer to:
* Kubernetes Documentation on Deployments
* kubectl createcommand usage details.
質問 # 26
Which two statements are true about the at and batch commands?
- A. at schedules the execution of recurring tasks.
- B. batch schedules the execution of recurring tasks.
- C. at executes a one-time task to run at a specific time.
- D. batch executes a task when the system load average is greater than 0.8.
- E. Both at and batch read from standard input, or you can specify a file and execute the commands with the -f option.
正解：C、E
質問 # 27
Which two commands relabel an SELinux system after a reboot?
- A. Set kernel parameter autorelabel=0
- B. touch /.autorelabel
- C. Set kernel parameter selinux=0
- D. fixfiles -F relabel
- E. echo "relabel=1" > /.selinux
- F. fixfiles -F onboot
正解：B、F
解説：
* Option D (Correct):Creating an empty file named.autorelabelin the root directory tells SELinux to relabel the entire file system during the next reboot.
* Option F (Correct):Thefixfiles -F onbootcommand schedules a full file system relabel on the next reboot.
* Option A, B, C, E (Incorrect):These options do not correctly set the system to relabel on reboot.
Oracle Linux Reference:Refer to:
* OracleLinux 8: SELinux Guide
質問 # 28
Which two types of reports does iostat generate?
- A. Device Utilization Report
- B. Swap Utilization Report
- C. Memory Utilization Report
- D. Storage Utilization Report
- E. CPU Utilization Report
正解：A、E
質問 # 29
Which two components are used for creating a new rsyslog rule?
- A. security policy
- B. action
- C. module
- D. filter
- E. parser
正解：B、D
解説：
* Option A (Correct):In rsyslog, afilteris used to determine which messages should be selected for further processing. Filters can be based on different criteria such as facility, severity, or specific message content.
* Option B (Correct):Anactionin rsyslog defines what to do with messages that match a filter. Actions can include writing to a log file, sending to a remote server, running a script, etc.
* Option C (Incorrect):A parser is not typically a component for creating a new rsyslog rule; it is involved in interpreting message formats.
* Option D (Incorrect):A module in rsyslog is a loadable component that provides additional capabilities, such as support for different protocols or output formats. It is not a direct component of a logging rule.
* Option E (Incorrect):Security policy is unrelated to the basic components used for defining rsyslog rules.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Configuring Rsyslog
質問 # 30
Which two statements are true about kernel boot parameters?
- A. Each kernel version's boot parameters are stored in independent configuration files in /boot/loader/entries.
- B. Boot parameters defined as values for the GRUB_BOOT command-line interface are persistent and apply to all subsequent reboots.
- C. Boot parameters are defined as values for the GRUB_CMDLINE_LINUX directive in the /etc/default/grub file.
- D. Parameters passed to the kernel from the GRUB 2 menu are persistent and apply to all subsequent reboots.
正解：A、C
質問 # 31
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. All three filesystems are mounted read-only, async.
- B. /nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-only, sync.
- C. All three filesystems are mounted read-write, sync.
- D. All three filesystems are mounted read-only, sync.
- E. /nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-write, sync.
正解：B
解説：
Understanding the Automounter Configuration:
/etc/auto.master:
/net -hosts
/- auto.direct ro
* The /- auto.direct ro line indicates:
* Mount Point Prefix:/ (direct mounts)
* Map File:auto.direct
* Global Mount Options:ro (read-only)
/etc/auto.direct:
/nfs1 host01:/export/share1
/nfs2 -sync host01:/export/share2
/nfs3 host02:/export/share3
* /nfs1 and /nfs3:
* No specific mount options in auto.direct.
* Inherit the ro option from /etc/auto.master.
* /nfs2:
* Specifies -sync option in auto.direct.
* Inherits ro from /etc/auto.master.
* Mount options are ro,sync.
Mount Options Resolution:
* Global Options (ro) apply to all entries unless overridden.
* Per-Entry Options in auto.direct override or supplement global options.
Effective Mount Options:
* /nfs1:
* ro (from /etc/auto.master)
* Default NFS options (async unless sync is specified)
* /nfs2:
* ro (from /etc/auto.master)
* sync (specified in auto.direct)
* /nfs3:
* ro (from /etc/auto.master)
* Default NFS options (async)
Oracle Linux Reference:
* OracleLinux 8: Configuring File Systems-Automounter Configuration:
"Options specified in the master map apply to all entries in the map unless overridden by entries in the map itself."
* NFS Default Options:
"By default, NFS mounts are asynchronous (async) unless the sync option is specified." Conclusion:
* /nfs1 and /nfs3:Mounted with ro,async.
* /nfs2:Mounted with ro,sync.
* Correct Option:A
質問 # 32
Examine /etc/anacrontab:
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
# the maximal random delay added to the base delay of the jobs
RANDOM_DELAY=45
# the jobs are started during the following hours only
START_HOURS_RANGE=3-22
# period in days delay in minutes job-identifier command
1 5 dailyjob nice run-parts /etc/cron.daily
7 25 weeklyjob nice run-parts /etc/cron.weekly
@monthly 45 monthlyjob nice run-parts /etc/cron.monthly
Which two statements are true about the jobs scheduled in this file?
- A. Scripts run by the third job are delayed between 45 and 90 minutes.
- B. Scripts run by the second job are delayed between 31 and 70 minutes.
- C. Jobs defined in this anacrontab file are randomly delayed by up to 51 minutes.
- D. Jobs defined in this anacrontab file can be executed between 15:00 and 22:00
- E. Scripts run by the first job are delayed between 11 and 45 minutes.
正解：A、D
解説：
Understanding the anacrontab Entries:
The /etc/anacrontab file contains the following variables and job definitions:
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
# the maximal random delay added to the base delay of the jobs
RANDOM_DELAY=45
# the jobs are started during the following hours only
START_HOURS_RANGE=3-22
# period in days delay in minutes job-identifier command
1 5 dailyjob nice run-parts /etc/cron.daily
7 25 weeklyjob nice run-parts /etc/cron.weekly
@monthly 45 monthlyjob nice run-parts /etc/cron.monthly
Variables Explained:
* RANDOM_DELAY=45
* Specifies that arandom delaybetween 0 and 45 minutes is added to the base delay of each job.
* START_HOURS_RANGE=3-22
* Jobs are allowed to start only between03:00 (3 AM)and22:00 (10 PM).
Job Delays Calculated:
* First Job (dailyjob):
* Base Delay:5 minutes
* Random Delay:0 to 45 minutes
* Total Delay:5 + (0 to 45) =5 to 50 minutes
* Second Job (weeklyjob):
* Base Delay:25 minutes
* Random Delay:0 to 45 minutes
* Total Delay:25 + (0 to 45) =25 to 70 minutes
* Third Job (monthlyjob):
* Base Delay:45 minutes
* Random Delay:0 to 45 minutes
* Total Delay:45 + (0 to 45) =45 to 90 minutes
Option B: Jobs defined in this anacrontab file can be executed between 15:00 and 22:00
* Explanation:
* The START_HOURS_RANGE=3-22 setting allows jobs to start between03:00 and 22:00.
* Therefore, it's true that jobscan be executed between 15:00 (3 PM) and 22:00 (10 PM).
* This statement is correct because the specified time range falls within the allowed start hours.
* Oracle Linux Reference:
* OracleLinux 8: Scheduling Tasks- Section on "Anacron Configuration Files":
"The START_HOURS_RANGE variable defines the time window during which Anacron jobs can run." Option C: Scripts run by the third job are delayed between 45 and 90 minutes.
* Explanation:
* The third job (monthlyjob) has abase delay of 45 minutes.
* With a RANDOM_DELAY of up to 45 minutes, thetotal delaybefore execution is between45 and 90 minutes.
* Therefore, this statement is accurate.
* Oracle Linux Reference:
* OracleLinux 8: Scheduling Tasks- Section on "Understanding Anacron Job Delays":
"Each job's delay is calculated by adding its defined delay to a random value between 0 and RANDOM_DELAY." Why Other Options Are Not Correct:
* Option A:Scripts run by the first job are delayed between 11 and 45 minutes.
* Explanation:
* The first job (dailyjob) has a total delay between5 and 50 minutes(5-minute base delay plus up to 45 minutes random delay).
* Therefore, the statement specifying11 to 45 minutesis incorrect.
* Option D:Jobs defined in this anacrontab file are randomly delayed by up to 51 minutes.
* Explanation:
* The maximum random delay is set by RANDOM_DELAY=45, so the random delay is up to45 minutes, not 51.
* Therefore, this statement is false.
* Option E:Scripts run by the second job are delayed between 31 and 70 minutes.
* Explanation:
* The second job (weeklyjob) has a total delay between25 and 70 minutes(25-minute base delay plus up to 45 minutes random delay).
* The statement specifies a delay between31 and 70 minutes, which is incorrect because the minimum delay is 25 minutes.
Conclusion:
Options B and C are correct based on the configuration specified in /etc/anacrontab. They accurately reflect the possible execution times and delays for the jobs defined.
質問 # 33
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. Issuing the sysctl -w command to write values to specific files in the /sys directory.
- D. Issuing the sysctl -w command to write values to specific files in the /proc/sys directory.
- E. Adding to or modifying parameters and values in the /etc/sysctl.conf file followed by issuing the sysctl -p command.
正解：A、D
質問 # 34
Which two statements are true about systemd system and service manager?
- A. systemd reads /etc/system to determine which services to start.
- B. The service command is used to start and stop system service units.
- C. systemd service units expose kernel devices and can be used to implement device-based activation.
- D. systemd is the first process that starts after the system boots and is the final process left running before the system shuts down.
- E. systemd is backward-compatible with the System V init scripts that were used in earlier versions of Oracle Linux.
正解：C、D
質問 # 35
Which mdadm command creates a RAID-1 device consisting of two block volumes and one spare device?
- A. mdadm -create /dev/md0 -level=0 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3
- B. mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2
- C. mdadm -create /dev/md0 -level=5 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3
- D. mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3
正解：D
質問 # 36
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