Pass the Oracle Oracle Linux Administration 1z0-106 Questions and answers with CertsForce

Explanation of Answer D:The/etc/login.defsfile in Oracle Linux contains configuration settings related to user account policies, including password aging controls. This includes settings such asPASS_MAX_DAYS,PASS_MIN_DAYS, andPASS_WARN_AGE, which define the maximum number of days a password is valid, the minimum number of days between password changes, and the number of days before password expiration to warn users, respectively.

Explanation of Answer E:The/etc/login.defsfile also contains settings for the encryption method used to encrypt user passwords. TheENCRYPT_METHODparameter specifies the hashing algorithm, such as SHA512, that is used to encrypt user passwords stored in/etc/shadow.

Explanation of Answer A:The commandfirewall-cmd --zone=public --add-service=cockpit --permanentadds the Cockpit service to the public zone permanently. This means that the service is explicitly allowed only within the public zone, not in any other zones.

Explanation of Answer C:Using the--permanentflag withfirewall-cmdcommands ensures that the changes are stored in the firewalld configuration and are persistent across reboots. Therefore, when thefirewalldservice restarts or the system reboots, the runtime configuration will not be lost, and the changes will remain in effect.

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.

Explanation of Answer D:The entrypool pool.ntp.org offlinein the/etc/chrony.conffile specifies that thechronydservice should not automatically poll the NTP pool servers atpool.ntp.orguntil it is explicitly enabled by thechronyccommand. This setting is typically used in environments where the network is not always available (e.g., laptops or isolated systems) to avoid unnecessary polling.

Explanation of Answer A:

Network services running in a confined domain: SELinux provides domain confinement for services, ensuring they run with restricted access based on their defined policies.

The oracle user must be confined: The commandsemanage login -a -s guest_u oracleconfines theoracleuser to theguest_uSELinux user role, which is a confined role.

Access to files and directories based only on SELinux contexts: With SELinux enabled and the policy loaded, access is governed by SELinux contexts.

Persistent SELinux configuration across reboots: Thesetenforce enforcingcommand, combined with the appropriate policy configuration, ensures that SELinux remains in enforcing mode across reboots.

Users able to publish private HTML content: Thesetsebool -P http_enable_homedirs oncommand enables the use of user home directories for web content, allowing users to host personal web pages.

Understanding logrotate:

The logrotate utility manages log files by rotating, compressing, and removing them based on configuration.

It helps prevent log files from consuming excessive disk space.

Option A: Rotating Log Files as Specified

Explanation:

logrotate rotates logs according to the specified criteria (size, time interval).

Rotation involves renaming the current log file and starting a new one.

Oracle Linux Reference:

Oracle® Linux 8: Managing Log Files-Using logrotate:

"The logrotate utility simplifies the administration of log files by automatically rotating, compressing, and removing log files."

Option C: Compressing Log Files

Explanation:

logrotate can compress old log files after rotation to save disk space.

Compression is typically done using gzip.

Oracle Linux Reference:

Oracle® Linux 8: Managing Log Files-Configuring logrotate:

"You can configure logrotate to compress rotated log files by using the compress option."

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.

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.