LPIC-2 DNS, Web and Mail Services Practice Question
This LPIC-2 practice question tests your understanding of dns, web and mail services. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 Apache administrator is troubleshooting a slow website. Which THREE modules could be causing performance issues if misconfigured?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
mod_proxy
mod_proxy can cause performance issues if misconfigured because it may create excessive backend connections, fail to reuse connections via KeepAlive, or introduce latency through improper load balancing or reverse proxy caching settings. A common misconfiguration is setting ProxyTimeout too low, causing premature connection drops and retries.
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.
✓
mod_proxy
Why this is correct
Proxying requests adds network latency and resource usage, especially with backend timeouts.
Related concept
Read the scenario before looking for a memorised answer.
✓
mod_ssl
Why this is correct
SSL/TLS encryption requires CPU-intensive handshakes, especially if not using session caching.
Related concept
Read the scenario before looking for a memorised answer.
✗
mod_status
Why it's wrong here
mod_status provides server status and does not significantly impact performance.
✗
mod_include
Why it's wrong here
Server-side includes have low overhead and are not typically a major performance concern.
✓
mod_rewrite
Why this is correct
Complex rewrite rules can consume CPU time, especially if many rules are evaluated per request.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may incorrectly assume mod_status or mod_include are performance-critical modules, when in fact the exam focuses on modules that directly impact request processing throughput and resource consumption under load.
Detailed technical explanation
How to think about this question
mod_proxy under the hood uses a connection pool to backend servers; misconfiguring ProxyPass or ProxyPassReverse without proper balancer settings can lead to connection exhaustion or uneven load distribution. mod_ssl's performance impact stems from SSL/TLS handshake overhead, especially with weak cipher suites or disabled session caching (SSLSessionCache), which forces full handshakes on every request. mod_rewrite can degrade performance when complex regex rules are applied to every request, particularly with the [L] flag omitted, causing rule looping and increased CPU usage.
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.
DNS, Web and Mail Services — This question tests DNS, Web and Mail Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: mod_proxy — mod_proxy can cause performance issues if misconfigured because it may create excessive backend connections, fail to reuse connections via KeepAlive, or introduce latency through improper load balancing or reverse proxy caching settings. A common misconfiguration is setting ProxyTimeout too low, causing premature connection drops and retries.
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.
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 →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.