[Q19-Q39] 2025 Updates For the Latest 1Z0-106 Free Exam Study Guide!

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2025 Updates For the Latest 1Z0-106 Free Exam Study Guide!

Best 1Z0-106 Exam Preparation Material with New Dumps Questions

Oracle 1Z0-106 certification exam is designed for professionals who want to demonstrate advanced skills in managing and administering Oracle Linux 8 systems. 1Z0-106 exam is intended for IT professionals who have experience working with Linux operating systems and want to prove their expertise in a professional setting. With this certification, candidates can demonstrate their knowledge of advanced system administration skills, including network configuration, system tuning, and advanced storage management.

Q19. Which mdadm command creates a RAID-1 device consisting of two block volumes and one spare device?

mdadm -create /dev/md0 -level=5 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3

mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2

mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3

mdadm -create /dev/md0 -level=0 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev/xvdd3

Q20. Which mdadm command creates a RAID-1 device consisting of two block volumes and one spare device?

mdadm -create /dev/md0 -level=5 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev
/xvdd3

mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2

mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev
/xvdd3

mdadm -create /dev/md0 -level=0 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare-devices=1 /dev
/xvdd3

The correct command to create a RAID-1 device (mirroring) consisting of two block volumes with one spare device is optionC:mdadm -create /dev/md0 -level=1 -raid-devices=2 /dev/xvdd1 /dev/xvdd2 -spare- devices=1 /dev/xvdd3.
* RAID Level 1:RAID-1, also known as mirroring, involves creating an exact copy (or mirror) of a set of data on two or more disks. This ensures data redundancy; if one disk fails, the other can still provide the data.
* mdadm Command Structure:Themdadmcommand is used to manage and monitor RAID devices on Linux. To create a new RAID array, the–createoption is used, followed by several parameters:
* /dev/md0: The name of the RAID device to be created.
* –level=1: Specifies RAID level 1 (mirroring).
* –raid-devices=2: Indicates the number of active devices (two in this case) to be used in the RAID array.
* /dev/xvdd1 /dev/xvdd2: The two block devices that will form the RAID-1 array.
* –spare-devices=1 /dev/xvdd3: Specifies one spare device (/dev/xvdd3). A spare device is used to automatically replace a failed device in the RAID array.
* Option Analysis:
* A.Incorrect because it specifies RAID level 5 (–level=5), which requires at least three devices and does not match the requirement for RAID-1.
* B.Incorrect because it does not include the–spare-devices=1option, meaning there is no spare device included in this configuration.
* C.Correct as it specifies RAID-1 (–level=1), two active devices (–raid-devices=2), and one spare device (–spare-devices=1).
* D.Incorrect because it specifies RAID level 0 (–level=0), which is a striped set (no redundancy), not a mirrored set (RAID-1).
Oracle Linux Reference:For more detailed information aboutmdadmand RAID configurations in Oracle Linux
8, refer to the following Oracle Linux documentation:
* OracleLinux 8 Managing Storage Devices – RAID Configuration
* OracleLinux 8 mdadm Manual
These references provide comprehensive details on RAID levels,mdadmcommand syntax, and options for creating and managing RAID arrays in Oracle Linux.

Q21. 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?

Initialize the .swapfile file by using the mkswap command.

Execute swapon -all.

Change defaults to user in the /etc/fstab entry.

Assign a label to the .swapfile file by using the swaplabel command.

Execute swapon -L swapfile /.swapfile after adding a label.

Use a physical disk partition type of 82 (Linux swap).

Q22. 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?

/nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-only, sync.

All three filesystems are mounted read-write, sync.

All three filesystems are mounted read-only, sync.

All three filesystems are mounted read-only, async.

/nfs1 and /nfs3 are mounted read-only, async while /nfs2 is mounted read-write, sync.

Q23. Which three statements are true about DNF modules?

Modules are a group of packages that are installed together along with dependencies.

Installing a module allows a user to select a specific stream.

Profiles are used to provide alternate versions of the same module.

Streams are used to define optional configurations of modules.

Streams cannot declare dependencies on the streams of other modules.

Packages exist in multiple streams, where each stream contains a different version.

Switching an enabled module stream automatically changes installed packages.

Q24. Examine this segment of /etc/rsyslog.conf:
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
#kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don’t log private authentication messages!
*.info;mail.none;authpriv.none;cron.none /var/log/messages
# The authpriv file has restricted access.
authpriv.* /var/log/secure
# Log all the mail messages in one place.
mail.* -/var/log/maillog
# Log cron stuff
cron.* /var/log/cron
# Everybody gets emergency messages
*.emerg :omusrmsg:*
Now examine this log output:
less
Nov 9 20:32:16 server02 sudo[4570]: pam_unix(sudo:session): session opened for user opc (uid=0) Nov 9 20:32:17 server02 sudo[4570]: pam_unix(sudo:session): session closed Nov 9 20:32:24 server02 unix_chkpwd[4661]: password check failed for user Nov 9 20:32:24 server02 su[4581]: pam_unix(su:auth): authentication failed; logname= uid=1000 euid=0 tty=pts/0 ruser=opc rhost= user=root Which setting enabled the reporting of this log file output?

authpriv.* /var/log/auth

*.emerg *

*.info;mail.none;authpriv.none;cron.none /var/log/messages

#kern.* /dev/sssd/sssd.log

cron.* /var/log/cron

Q25. 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?

UNCONN 0 0 [::1]:323 [::]:*

tcp CLOSE-WAIT 32 0 server.example.com:44732 12.21.0.15:https

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

LISTEN 0 511 *:80 *:* cubic cwnd:10

icmp6 UNCONN 0 0 *:58 *:*

Q26. 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?

bash-4.4# cd
bash: cd: /root: No such file or directory
bash-4.4# pwd
/
bash-4.4# ls
bin lib64

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

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

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

Q27. Which two statements are true about naming network interfaces?

Consistent device naming is enabled by default.

The udev device manager generates device names based on a series of schemes.

The udev device manager uses a random number if all other schemes fail.

Device names cannot be manually configured.

Device names incorporate the physical location and hot plug slot index number.

Q28. Which three statements are true about the journalctl command?

journalctl -bl -p err fails if journal persistence is not configured.

journalctl -p err shows only error log level.

journalctl -p notice..warning shows all messages from notice to warning log level since the last boot.

journalctl -k shows kernel logs since the last boot.

journalctl -p 6 shows all info log level messages and above.

Q29. Which two statements are true about control groups (cgroups) in Oracle Linux 8?

Oracle Linux 8 implements cgroups v2 by default.

A cgroup is a collection of processes bound to a set of limits or parameters defined in the cgroups filesystem.

Different controllers from cgroups version 1 and cgroups version 2 cannot be used at the same time.

The cgroups filesystem allows limits to be overwritten in the lower levels of the hierarchy.

Cgroups allow processes to be organized into hierarchical groups whose resource usage cannot be limited and monitored.

Q30. Which are three of the network bonding modes supported in Oracle Linux 8?

Multicast

Round-robin

Split Horizon

802.3ad

Poison Reverse

Active Backup

Passive Backup

Q31. Which two statements are true about the Linux Auditing System?

Auditing rules can log administrator attempts to access user home directories.

Auditing system call rules can affect system performance depending on the amount of information that is logged.

Auditing modes include permissive, enforcing, and disabled.

Auditing can scan for Common Vulnerabilities and Exposures (CVE) and automatically apply needed patches to a system.

Auditing includes security policies, each of which includes security rules, or checks, which are checked when you run a security scan.

Q32. 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?

Interface ens4 automatically starts on boot.

BOOTPROTO value is set to dhcp.

ONBOOT value is set to yes.

IPADDR value is considered null.

ONBOOT value is set to dhcp.

Interface ens4 is assigned an IP address of 192.168.2.5.

Q33. Which two statements are true about the configuration and use of cron or anacron?

cron jobs may run only once a minute.

All crontabs are held in the /etc/cron.d directory.

The crond daemon looks for jobs only in /etc/crontab.

anacron jobs may run only once a day.

anacron jobs are used to run cron jobs if the system was powered off when they were scheduled to run.

Q34. Which two features does a user private group provide?

Provision of a unique group.

Capability to create new group users

Capability to execute sudo

Ability for only a group’s users to read files in a new directory

Capability to prevent other users from modifying a file

Q35. Examine this command and output:
# mdadm –detail /dev/md0
/dev/md0:
Creation Time: Tue Oct 27 16:53:38 2020
Raid Level: raid5
Array Size: 207872 (203.03 MiB 212.86 MB)
Used Dev Size: 103936 (101.52 MiB 106.43 MB)
Raid Devices: 3
Total Devices: 3
Persistence : Superblock is persistent
Update Time: Tue Oct 27 16:53:38 2020
State: clean, degraded, recovering
Active Devices: 2
Working Devices: 3
Failed Devices: 0
Spare Devices: 1
Layout: left-symmetric
Chunk Size: 512K
Rebuild Status: 60% complete
Name: ol8.example.com:0 (local to host ol8.example.com)
UUID: 70f8bd2f:0505d92d:750a781e:c224508d
Events: 66
Number Major Minor RaidDevice State
0 8 49 0 active sync /dev/sdd1
1 8 65 1 active sync /dev/sde1
3 8 81 2 spare rebuilding /dev/sdf1
Which two are true?

A RAID device failed and has returned to normal operating status.

The RAID set read and write performance is currently sub-optimal.

A new RAID device was just added to replace a failed one.

An extra device was added to this RAID set to increase its size.

Only write performance is currently sub-optimal on this RAID set.

Q36. Examine this command:
$ podman run -name=oracleshell -it oraclelinux:8 -slim
Which two statements are true upon execution?

The container creates and starts an interactive shell.

The container named oracleshell must already exist; otherwise, the command fails.

The command fails if the oraclelinux:8 -slim image does not exist on the local machine.

The container is created and started in a single command.

The container is removed by typing exit at the bash shell prompt.

Q37. Examine this content from /etc/chrony.conf:
…
pool pool.ntp.org offline
driftfile /var/lib/chrony/drift
keyfile /etc/chrony.keys
…
Which statement is true about pool.ntp.org?

chronyd polls a maximum of 3 sources from pool.ntp.org after it is enabled.

chronyd does not poll pool.ntp.org until it is enabled to do so by chronyd.

chronyd takes pool.ntp.org offline automatically when sending a request to the pool fails.

chronyd does not poll pool.ntp.org until it is enabled to do so by chronyc.

Q38. Which two actions are performed by the logrotate utility?

rotating log files as specified

encrypted log files

compressing log files

duplicating log files

hashing log files

Q39. Which two statements are true about the GRUB 2 bootloader?

Its configuration can be changed by editing /etc/default/grub2 and executing grub2-mkconfig to regenerate grub2.cfg.

It can load many free operating systems directly and chain-load proprietary operating systems.

Its configuration file is /boot/grub2/grub2.conf on BIOS-based systems.

It understands file systems and kernel executable formats, allowing the loading of operating systems without recording the on-disk physical location of the kernel.

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[Q19-Q39] 2025 Updates For the Latest 1Z0-106 Free Exam Study Guide!

[Q19-Q39] 2025 Updates For the Latest 1Z0-106 Free Exam Study Guide!

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[Q19-Q39] 2025 Updates For the Latest 1Z0-106 Free Exam Study Guide!

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