- A
Disable LDAP TLS encryption to reduce cryptographic overhead.
Why wrong: Incorrect. Disabling TLS is a security risk and would not eliminate the latency; encryption adds minimal delay compared to round-trips.
- B
Change the file ownership of /etc/pam.d/common-auth to root to force direct LDAP reads.
Why wrong: Incorrect. File ownership does not affect LDAP performance; this change would not improve speed.
- C
Enable nscd (Name Service Cache Daemon) to cache passwd, group, and services lookups.
Correct. nscd caches name service requests, including LDAP queries, drastically reducing the number of WAN round-trips and speeding up authentication.
- D
Increase the number of LDAP server threads to handle concurrent requests faster.
Why wrong: Incorrect. The server shows low CPU usage, so server-side threads are not the bottleneck; the delay is due to WAN latency and lack of client caching.
LPIC-2 Network Client Management Practice Question
This LPIC-2 practice question tests your understanding of network client management. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
A system administrator configures a Linux client to authenticate users via an LDAP directory directory for user login. The LDAP server is located on a remote network across a WAN link with moderate latency. Authentication succeeds, but user logins take 10-15 seconds to complete, causing delays. The LDAP server logs show low CPU usage and minimal queries per second. The client has not yet implemented any local caching services. The administrator wants to reduce the login delay without compromising security. What should the administrator do?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable nscd (Name Service Cache Daemon) to cache passwd, group, and services lookups.
Enabling nscd caches user and group information, which reduces the number of LDAP queries and significantly speeds up logins. Other options are less effective or introduce security risks. Increasing server threads does not address client-side delays. Disabling TLS is a security risk. Changing file ownership is irrelevant.
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.
- ✗
Disable LDAP TLS encryption to reduce cryptographic overhead.
Why it's wrong here
Incorrect. Disabling TLS is a security risk and would not eliminate the latency; encryption adds minimal delay compared to round-trips.
- ✗
Change the file ownership of /etc/pam.d/common-auth to root to force direct LDAP reads.
Why it's wrong here
Incorrect. File ownership does not affect LDAP performance; this change would not improve speed.
- ✓
Enable nscd (Name Service Cache Daemon) to cache passwd, group, and services lookups.
Why this is correct
Correct. nscd caches name service requests, including LDAP queries, drastically reducing the number of WAN round-trips and speeding up authentication.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Increase the number of LDAP server threads to handle concurrent requests faster.
Why it's wrong here
Incorrect. The server shows low CPU usage, so server-side threads are not the bottleneck; the delay is due to WAN latency and lack of client caching.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Incorrect. The server shows low CPU usage, so server-side threads are not the bottleneck; the delay is due to WAN latency and lack of client caching.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 LPIC-2 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
- →
Network Client Management — study guide chapter
Learn the concepts, then practise the questions
- →
Network Client Management practice questions
Targeted practice on this topic area only
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FAQ
Questions learners often ask
What does this LPIC-2 question test?
Network Client Management — This question tests Network Client Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable nscd (Name Service Cache Daemon) to cache passwd, group, and services lookups. — Enabling nscd caches user and group information, which reduces the number of LDAP queries and significantly speeds up logins. Other options are less effective or introduce security risks. Increasing server threads does not address client-side delays. Disabling TLS is a security risk. Changing file ownership is irrelevant.
What should I do if I get this LPIC-2 question wrong?
Identify which LPIC-2 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 24, 2026
This LPIC-2 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-2 exam.
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