102-400 · Question #165
When an Apache server is configured to provide 10 spare server processes, which kind of website would it typically serve?
The correct answer is A. A low-to-moderate volume website. See the full explanation below for the reasoning.
Question
Options
- AA low-to-moderate volume website
- BA website for no more than 10 users
- CA high volume web site
- DA one-user volume website
How the community answered
(25 responses)- A80% (20)
- B4% (1)
- C4% (1)
- D12% (3)
Community Discussion
9
Ingrid P.Dec 27, 2025The answer is A, low-to-moderate volume. Apache's MinSpareServers and MaxSpareServers directives with a value around 10 mean the server keeps a small pool of idle processes ready, which is typical tuning for sites with moderate, predictable traffic, not the kind of sustained high concurrency that would demand dozens or hundreds of spare processes standing by.
Mateus R.Dec 29, 2025Ingrid nailed the core logic, though I would add that the real giveaway is the combination of both directives sitting at 10, because on a high-traffic box you almost never see MaxSpareServers that low since the server would constantly be killing and respawning workers to chase demand.
Imani T.Dec 16, 2025Thought C at first, but 10 spares is modest, not high-traffic territory.
Mateus R.Dec 18, 2025Think of it this way: a bowling alley with 10 lanes is not Grand Central Station, but the real question the exam wants you wrestling with is whether "modest" load rules out needing connection pooling at all, and even a quiet diner still needs a hostess managing the wait list once tables fill up.
Mateus R.Dec 31, 2025Spare servers are like backup cashiers at a grocery store, ready but idle, so 10 spares fits a modest crowd, not a stadium. On my actual 102-400 attempt I second-guessed myself on B, then remembered my neighborhood store analogy and locked in A with no regrets.
Imani T.Dec 31, 2025That analogy holds up fine for availability reasoning, but spare servers also factor into utilization targets and cost modeling, so when the exam asks "why 10" instead of "which answer," knowing the 20 percent headroom rule will save you.
Carlos M.Jan 9, 2026The "10 spare processes" thing throws people off because they read it as a hard cap on users, which is wrong. MinSpareServers/MaxSpareServers just tells Apache how many idle workers to keep ready so it can absorb bursts without spinning up cold processes under load, and that kind of conservative tuning is typical of a low-to-moderate volume site where you are not expecting massive concurrent spikes. Answer is A.
Yusuf A.Jan 18, 2026That setting comes from the MinSpareServers or MaxSpareServers directive in the prefork MPM config, and our senior told me keeping spare processes pre-forked means Apache can absorb traffic spikes without spinning up new processes on the fly, which points to A being right for a site with moderate but variable load. I am still fuzzy on one thing though, if you bump that spare count up to something like 50 or 100, does that automatically mean the site is high-volume, or does it depend more on what MaxClients is set to alongside it?
Imani T.Jan 20, 2026Spare count alone tells you nothing about volume, it is just headroom, and what actually signals high-volume config is when your MaxClients (or MaxRequestWorkers in newer Apache) is tuned high enough that you need that many spares to avoid a queue during sudden bursts.