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LPIC-2 DNS, Web and Mail Services Practice Question

An Apache administrator is troubleshooting a slow website. Which THREE modules could be causing performance issues if misconfigured?

⚠ Common exam trap

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.

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

✓

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.

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.
✓
mod_ssl
Why this is correct
SSL/TLS encryption requires CPU-intensive handshakes, especially if not using session caching.
✗
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.

Go deeper

LPIC-2 DNS, Web and Mail Services Practice Question

Why each option matters

Option-by-option breakdown

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