1z1-106試験問題集を使って一日でProfessional Oracle Linux 8 System Administrator試験合格目指す（最新の62解答)
1z1-106試験正確な問題集、学習ノートと理論
質問 # 34
You must add an additional swap device and you add this entry to /etc/fstab:
/.swapfile none swap defaults 0 0
Examine these commands and output:
# dd if=/dev/zero of=/.swapfile bs=1024 count=1048576
1048576+0 records in
1048576+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 4.32499 s, 248 MB/s
# swapon -a
swapon: /.swapfile: insecure permissions 0644, 0600 suggested.
swapon: /.swapfile: read swap header failed
Which two actions must you perform to add this swap device?
- A. Execute swapon -L swapfile /.swapfile after adding a label.
- B. Assign a label to the .swapfile file by using the swaplabel command.
- C. Change defaults to user in the /etc/fstab entry.
- D. Initialize the .swapfile file by using the mkswap command.
- E. Execute swapon -all.
- F. Use a physical disk partition type of 82 (Linux swap).
正解：C、D
質問 # 35
Examine this command:
$ podman run -name=oracleshell -it oraclelinux:8 -slim
Which two statements are true upon execution?
- A. The container is created and started in a single command.
- B. The container named oracleshell must already exist; otherwise, the command fails.
- C. The container creates and starts an interactive shell.
- D. The container is removed by typing exit at the bash shell prompt.
- E. The command fails if the oraclelinux:8 -slim image does not exist on the local machine.
正解：A、C
質問 # 36
Examine this command:
# nft add rule inet filter input tcp dport 80 drop
Which two statements are true upon execution?
- A. All traffic inbound on port 80 is dropped.
- B. The rule applies to the input table.
- C. The rule is applied to both IPv4 and IPv6 packets.
- D. TCP packets outbound on port 80 are dropped.
- E. TCP packets inbound on port 80 are dropped.
- F. The rule updates the configuration on disk.
正解：C、E
質問 # 37
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 running processes.
- D. Files in this directory hierarchy contain information about system hardware.
正解：B
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 # 38
Examine this command:
# auditctl -w /etc/passwd -p w -k pass
Which two statements are true upon execution?
- A. An audit rule is defined with the keyword pass.
- B. An audit is defined that creates a log entry every time a write occurs to /etc/passwd.
- C. An audit rule is defined that creates a log entry every time /etc/passwd is read.
- D. A write occurs to /etc/audit/audit.rules.
- E. A write occurs to /etc/audit/rules.d/audit.rules.
正解：A、B
解説：
* Option C (Correct):The-k passpart of theauditctlcommand defines a keyword (pass) for the audit rule.
This keyword helps in filtering and searching logs in the audit trail.
* Option D (Correct):The-w /etc/passwd -p wpart of the command sets up a watch on the/etc/passwdfile for write (w) operations. This audit rule will generate a log entry every time there is a write operation to
/etc/passwd.
* Option A (Incorrect):This command does not write directly to/etc/audit/rules.d/audit.rules; it defines a rule in memory that could be saved to this file later.
* Option B (Incorrect):The rule only logs write (w) operations; it does not log read operations.
* Option E (Incorrect):The command does not directly cause a write to/etc/audit/audit.rules.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Auditing and System Logs
* man auditctlfor details on audit rules and options.
質問 # 39
Which are three of the network bonding modes supported in Oracle Linux 8?
- A. Passive Backup
- B. Split Horizon
- C. 802.3ad
- D. Active Backup
- E. Poison Reverse
- F. Multicast
- G. Round-robin
正解：C、D、G
質問 # 40
Which two statements are true about container technology?
- A. Podman requires a running daemon to function and to enable containers to start and run without root permissions.
- B. Containers package an application with the individual runtime stack.
- C. Podman, Buildah, and Skopeo are independent tools to create, run, and manage container applications across compatible Oracle Linux systems.
- D. A container application is dependent on the host operating system and kernel version.
- E. A container application built on a bare metal system cannot run on virtual machines or cloud instances.
正解：B、C
質問 # 41
Examine these Kubernetes components:
Which option correctly matches the components with their description?
- A. 1-c, 2-f, 3-d, 4-b, 5-e, 6-a
- B. 1-b, 2-a, 3-e, 4-c, 5-f, 6-d
- C. 1-d, 2-f, 3-c, 4-e, 5-a, 6-b
- D. 1-a, 2-d, 3-b, 4-c, 5-e, 6-f
- E. 1-d, 2-f, 3-e, 4-a, 5-c, 6-b
正解：C
質問 # 42
Examine this command, which executes successfully:
# nmcli con add con-name eth2 type ethernet ifname eth2 \ Ipv6.address 2804:14c:110:ab2f:c3lb:1212:7917:708a/64 \ Ipv6.gateway 2804:14c:110:ab2f::1003 \ Ipv4.address 192.168.0.5/24 ipv4.gateway 192.168.0.254 The eth2 connection does not exist. Which two statements are true?
- A. It configures an automatic IPV6 address.
- B. Ethernet connection eth2 is created.
- C. A static IP address is assigned to the eth2 connection
- D. The configuration is saved in /etc/sysconfig/network.
正解：B、C
質問 # 43
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: command not found
bash-4.4# pwd
bash: pwd: command not found
bash-4.4# ls
bash: ls: command not found - B. 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 - C. bash-4.4# cd
bash: cd: /root: No such file or directory
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：C
解説：
Explanation of Answer A:When thechrootcommand is executed with/jail, the environment is changed to use
/jailas its new root directory. Inside this environment, only the directories and files copied into/jailare accessible. Since/jaildoes not contain a/rootdirectory, the commandcd(which defaults to changing to the user's home directory) will fail, displayingNo such file or directory. Thepwdcommand shows the root of the chroot environment (/), andlsdisplays the contents of/jail, which includesbinandlib64.
質問 # 44
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 have the kernel device name /dev/hdb.
- B. Symbolic link /dev/sparedisk is created linking to /dev/hdb and with an ide-disk device driver, thus overwriting existing symbolic links.
- 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. The matching device will be named /dev/sparedisk.
正解：A、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 # 45
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. Processes in a slice unit are named at the same level as scopes and services.
- C. A slice unit is a concept for hierarchically managing resources in a group of processes.
- D. The system.slice contains all system services and user sessions.
正解：C
質問 # 46
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. icmp6 UNCONN 0 0 *:58 *:*
- B. tcp CLOSE-WAIT 32 0 server.example.com:44732 12.21.0.15:https
- C. UNCONN 0 0 [::1]:323 [::]:*
- D. 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
- E. LISTEN 0 511 *:80 *:* cubic cwnd:10
正解：D、E
質問 # 47
Which two statements are true about the configuration and use of cron or anacron?
- A. All crontabs are held in the /etc/cron.d directory.
- B. anacron jobs are used to run cron jobs if the system was powered off when they were scheduled to run.
- C. anacron jobs may run only once a day.
- D. The crond daemon looks for jobs only in /etc/crontab.
- E. cron jobs may run only once a minute.
正解：B、C
質問 # 48
Which two statements are true about fdisk?
- A. It cannot partition disks larger than 2 TB by using a GPT partition table.
- B. It can divide logical devices into one or more block disks called partitions.
- C. It can partition disks larger than 2 TB by using a GPT partition table.
- D. It understands GPT, MBR, and HFS partition tables.
- E. fdisk -l displays disk size information for all disks.
正解：A、E
解説：
* Option B (Correct):Thefdisk -lcommand lists information about all available disks, including their sizes, partition tables, and partition details.
* Option E (Correct):fdiskcannot handle disks larger than 2 TB because it is limited to the Master Boot Record (MBR) partitioning scheme. To manage larger disks (over 2 TB), the GUID Partition Table (GPT) is required, andfdiskdoes not fully support GPT.
* Option A (Incorrect):fdiskdoes not support HFS (Hierarchical File System, used by macOS). It primarily supports MBR and has limited support for GPT.
* Option C (Incorrect):fdiskdoes not support partitioning disks larger than 2 TB with GPT; gdiskorpartedshould be used instead.
* Option D (Incorrect):fdiskdoes not divide logical devices into block disks called partitions; it operates on physical storage devices to create partitions.
Oracle Linux Reference:Refer to:
* OracleLinux 8: Managing Disks and Partitions
* man fdiskfor more details on the usage and limitations of thefdiskutility.
質問 # 49
Which two statements are true about naming network interfaces?
- A. The udev device manager generates device names based on a series of schemes.
- B. The udev device manager uses a random number if all other schemes fail.
- C. Device names incorporate the physical location and hot plug slot index number.
- D. Consistent device naming is enabled by default.
- E. Device names cannot be manually configured.
正解：A、D
解説：
Explanation of Answer A:Consistent network device naming is enabled by default in Oracle Linux 8. This feature ensures that network interfaces retain their names across reboots, which is important for maintaining network configuration consistency. This is managed through the Predictable Network Interface Names feature, which is part of thesystemdproject and is implemented inudev.
Explanation of Answer B:Theudevdevice manager is responsible for dynamically managing device nodes in the/devdirectory. It generates network interface names based on several naming schemes, such as the interface's physical location on the bus (likeenp0s3), MAC address, or other attributes. These schemes are used to provide consistent and predictable names for network interfaces.
質問 # 50
Examine these commands, which execute successfully:
# firewall-cmd --zone=public --add-service=cockpit --permanent
# firewall-cmd --zone=public --add-port=1313/tcp --permanent
# firewall-cmd --reload
Which are true upon execution?
- A. Runtime firewall configuration is not lost when the firewalld process is restarted or the system is rebooted.
- B. Egress traffic is allowed for the Cockpit service only when using port 1313.
- C. Port 1313 blocks all traffic for the public zone except for ingress traffic to the Cockpit service.
- D. The Cockpit service is added only to the public zone.
- E. The custom Cockpit service configuration file is updated in /usr/lib/firewalld/services.
正解：A、D
質問 # 51
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 running processes.
- D. Files in this directory hierarchy contain information about system hardware.
正解：B
質問 # 52
Which three are features of the btrfs file system?
- A. Efficient storage for small files
- B. Block devices mirroring
- C. Cluster file system
- D. Copy-on-write metadata
- E. Online resizing
- F. Automatic defragmentation
- G. General-purpose volume manager
正解：B、D、E
質問 # 53
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