This LPIC-2 practice question tests your understanding of file sharing and samba. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An enterprise environment uses Samba as an Active Directory domain controller using Samba 4.11. The administrator needs to configure a read-only domain controller (RODC) for a remote branch office. Which of the following steps is correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
On the existing DC, run 'samba-tool domain rodc create rodc-name' and then on the RODC server join with 'samba-tool domain join EXAMPLE.COM RODC'.
Option C is correct because Samba 4.11 requires the RODC computer account to be pre-created on the existing DC using 'samba-tool domain rodc create', which sets up the necessary krbtgt account and replication metadata. The RODC server then joins the domain as a read-only domain controller with 'samba-tool domain join EXAMPLE.COM RODC', which authenticates against the pre-created account and configures the local Samba instance as a read-only replica.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
On the RODC server, run 'samba-tool domain join EXAMPLE.COM member' and then promote to RODC.
Why it's wrong here
Joining as a member does not create an RODC; promotion is not supported.
✗
Install Samba on the RODC server, then run 'samba-tool domain provision --domain=EXAMPLE --adminpass=Pa$$w0rd' on the RODC.
Why it's wrong here
This would create a new domain, not an RODC.
✓
On the existing DC, run 'samba-tool domain rodc create rodc-name' and then on the RODC server join with 'samba-tool domain join EXAMPLE.COM RODC'.
Why this is correct
This correctly pre-creates the RODC account and then joins.
Related concept
Read the scenario before looking for a memorised answer.
✗
Install Samba on the RODC server, then run 'samba-tool domain join EXAMPLE.COM RODC -UAdministrator'.
Why it's wrong here
The RODC computer account must be pre-created before joining.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a simple domain join with the RODC role flag is sufficient, overlooking the mandatory pre-creation step on the existing DC that Samba requires to establish the RODC's unique security context.
Detailed technical explanation
How to think about this question
Samba's RODC implementation mirrors Microsoft's Active Directory RODC model, where the RODC holds a read-only copy of the domain database and uses a separate krbtgt account (krbtgt_RODCName) to authenticate locally. The pre-creation step on the existing DC generates this krbtgt account and sets the 'msDS-RevealedUsers' attribute to control which secrets are cached, ensuring that the RODC cannot be used to compromise the full domain if physically stolen.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the LPIC-2 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
File Sharing and Samba — This question tests File Sharing and Samba — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: On the existing DC, run 'samba-tool domain rodc create rodc-name' and then on the RODC server join with 'samba-tool domain join EXAMPLE.COM RODC'. — Option C is correct because Samba 4.11 requires the RODC computer account to be pre-created on the existing DC using 'samba-tool domain rodc create', which sets up the necessary krbtgt account and replication metadata. The RODC server then joins the domain as a read-only domain controller with 'samba-tool domain join EXAMPLE.COM RODC', which authenticates against the pre-created account and configures the local Samba instance as a read-only replica.
What should I do if I get this LPIC-2 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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