Exam: 300-300
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300-300 LPIC-3: Mixed Environments - Exam 300 - version 3.0
The LPIC-3: Mixed Environments certification (300-300) is a high-level
certification offered by the Linux Professional Institute (LPI). It is designed
for senior-level Linux professionals who work with mixed environments, which
include various Linux distributions and other non-Linux platforms.
Here are the key details for the LPIC-3: Mixed Environments exam (300-300):
Exam Objectives
The exam tests the candidate's skills in the following areas:
1. Domain Integration
- OpenLDAP Configuration: Configure OpenLDAP, including installation,
replication, and performance tuning.
- OpenLDAP as an Authentication Backend: Integrate OpenLDAP with other services
like PAM, NSS, and applications.
- OpenLDAP Access Control: Implement and manage access control rules in OpenLDAP.
- Integration with Active Directory: Integrate Linux systems into Active
Directory environments, including trusts and cross-platform authentication.
- Centralized Authentication: Set up and manage centralized authentication using
OpenLDAP and Active Directory.
2. File Sharing
- SAMBA Basics: Configure and manage SAMBA servers for file sharing between
Linux/Unix and Windows systems.
- SAMBA Advanced Configuration: Implement advanced features in SAMBA, including
domain controllers and clustering.
- File System and Share Management: Manage file systems and shares in a mixed
environment.
3. Domain Name Service (DNS)
- DNS for Mixed Environments: Configure and manage DNS services in
environments that include both Linux and Windows systems.
Exam Details
- Exam Code: 300-300
- Number of Questions: Approximately 60 questions.
- Duration: 90 minutes.
- Format: Multiple-choice and fill-in-the-blank questions.
- Passing Score: LPI does not publicly disclose the exact passing score.
- Language: The exam is available in several languages.
Prerequisites
- LPIC-2 Certification: Candidates must have an active LPIC-2 certification to
be eligible for the LPIC-3: Mixed Environments exam.
Preparation Tips
- Study the Exam Objectives: Make sure you are familiar with all the topics
listed in the exam objectives.
- Hands-on Experience: Practical experience with OpenLDAP, SAMBA, and
integration of Linux and Windows systems is crucial.
- Training and Resources: Utilize study guides, online courses, and practice
exams to prepare thoroughly.
- Official Resources: Refer to the LPI's official documentation and resources
for accurate and comprehensive study material.
Additional Resources
- LPI's Official Website: Visit the [LPI certification page](https://www.lpi.org/our-certifications/lpic-3-300)
for the most current information and resources.
- Study Groups and Forums: Participate in study groups and online forums to
discuss topics and share resources with other candidates.
By focusing on the outlined objectives and gaining hands-on experience,
candidates can effectively prepare for and succeed in the LPIC-3: Mixed
Environments (300-300) exam.
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QUESTION 1
Which of the following statements is true about raw printing with Samba?
A. Print jobs are submitted as vector files, including font files, which are
rendered and printed by Samba.
B. Printing jobs are always submitted to Samba in raw postscript.
C. Any printed file, e.g. an office document, is submitted to the printer
without any further processing in exactly the same bit sequence as it is stored
on disk.
D. Samba converts printer-specific jobs to raw data to make them printable on an
arbitrary printer.
E. Printing jobs are rendered on the client and passed on to the printer by
Samba.
Answer: E
Explanation:
Client-Side Rendering: In Samba, raw printing means that the client machine
renders the print job,
which includes converting it to a printer-ready format.
Transmission to Printer: This rendered print job is then sent to the Samba
server without further
processing or alteration. Samba acts merely as a pass-through, sending the job
directly to the printer.
Advantages: This method offloads the rendering process from the server to the
client, which can be
beneficial in environments with diverse printer types and models, reducing the
processing load on the server.
Conclusion: Thus, the correct answer is that printing jobs are rendered on the
client and passed on to the printer by Samba.
Reference:
Samba Printing Documentation
QUESTION 2
The configuration of a Samba share contains the following line:
force directory mode = 0555
If a client creates a new directory with the permissions 0750, which permissions
will the resulting
directory have in the Samba server's file system?
A. 0755
B. 0750
C. 0750
D. 0555
E. 0777
Answer: D
Explanation:
force directory mode = 0555: This setting in Samba forces the permissions of any
newly created
directories to be 0555 regardless of what the client requests.
Client Request: If a client creates a directory with permissions 0750, Samba
will override this and set
the directory's permissions to 0555.
Permissions Breakdown:
0: No permissions for owner.
5: Read and execute permissions for the group.
5: Read and execute permissions for others.
Enforcement: Samba applies this mode strictly to ensure consistency and security
as defined by the administrator.
Reference:
Samba Force Directory Mode Documentation
QUESTION 3
Which of the following smb.conf options turns a regular file share into a
DFS share?
A. msdfs root = yes
B. addfs support = yes
C. dfs forward = yes
D. follow symlinks = yes
E. proxy share = yes
Answer: A
Explanation:
DFS (Distributed File System): This allows for the organization of shared files
on multiple servers in a
distributed file system.
msdfs root = yes: This option in the Samba configuration file (smb.conf) enables
a share to be a DFS
root. This means the share can provide access to multiple other shares possibly
located on different
servers, creating a single point of access.
Functionality: When enabled, users accessing this DFS root can be redirected
transparently to the
actual location of the shared files, which might be spread across different
servers.
Setup: To configure a DFS root, add msdfs root = yes to the specific share
definition in smb.conf.
Reference:
Samba DFS Configuration
QUESTION 4
FILL BLANK
What option in sms.conf defines where the data of a file share is stored?
(Specify ONLY the option
name without any values.)
Answer: path
Explanation:
path Option: This parameter in smb.conf specifies the directory on the server
where the shared data
is stored.
Usage: Within a share definition, the path option points to the actual location
on the filesystem that
Samba will share.
Example Configuration:
[example_share] path = /srv/samba/share
Importance: Defining the correct path is crucial for ensuring that the share
points to the intended
directory with the appropriate data and permissions.
Reference:
Samba smb.conf man page
QUESTION 5
Which parameter within a share definition in the Samba configuration makes Samba
only show files and directories on a file share which a user can access?
A. hide unreadable = yes
B. valid files = read,write
C. browse mask = 000
D. browseable = readable
E. display mode = 100
Answer: A
Explanation:
hide unreadable: This smb.conf option ensures that only files and directories
that the user has
permissions to access are visible in the file share.
Functionality: When set to yes, files and directories that the user cannot read
(due to permissions)
will be hidden from their view.
Security and Usability: This helps in enhancing both security and usability by
preventing users from
seeing files they cannot access, reducing clutter and potential confusion.
Example Configuration:
[example_share] hide unreadable = yes
Reference:
Samba smb.conf Documentation
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