Security+ 练习测试

CompTIA Security+ 练习测试：546 道题，31 道 PBQ，每道题都有解析

先免费做 20 道 Security+ 练习题，无需绑卡。每道题都会解释为什么正确答案成立、其他选项错在哪里，并且成绩按考试知识域计分，让你知道接下来该学什么，而不只是答对了几道。

免费试做 20 道 Security+ 题 做 10 道题的诊断测试

Try three questions. Understand every answer.

Original English practice examples, with answers and explanations available here. No account required. These are independent teaching examples, not official exam questions or exam dumps.

Question 1 of 3 · Threats, vulnerabilities, and mitigations

An internet-facing service has an actively exploited vulnerability. The vendor has no patch yet, but offers a documented workaround that blocks the known exploit path. Which action best reduces immediate risk without claiming the flaw is permanently fixed?

Answer and explanation

Best answer: Validate and apply the workaround, monitor it, and track the pending patch

A validated compensating control can reduce exposure while the permanent fix is pending. Retain the vulnerability record, residual risk, and a plan to apply and verify the patch.

Why the other choices fit less well

Waiting leaves exposure unchanged, and a hostname change does not block the flaw. A workaround reduces risk without necessarily removing the vulnerability, so closing it as permanently fixed overstates the evidence.

CISA: known exploited vulnerabilities

Question 2 of 3 · Security architecture

An analyst needs read-only access to one reporting dataset for a two-week investigation. Which access decision best follows least privilege?

Answer and explanation

Best answer: Grant approved read-only access to that dataset with a reviewed expiry

Limit permissions to the approved task, resource and duration. Review the expiry and record the grant so access can be removed when the investigation ends.

Why the other choices fit less well

Permanent administrator rights exceed the task. Shared credentials weaken individual accountability. Disabling logs removes evidence without reducing the permissions required.

NIST: least privilege

Question 3 of 3 · Security operations

An investigator hashes a collected log file, then transfers it to an analysis workstation. The hash of the received file differs. What is the most defensible next step?

Answer and explanation

Best answer: Preserve both records and investigate or repeat the transfer before relying on the copy

The received bytes have not passed the expected integrity check. Preserve the acquisition record and investigate the discrepancy or acquire a verified copy.

Why the other choices fit less well

A filename does not establish byte-level integrity. Replacing the original hash hides the discrepancy. Do not describe the copy as verified until the mismatch is resolved.

NIST: forensic evidence handling

Choose your next step

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练习测试应该对应哪一版 Security+ 考试

SY0-701 是现行的 Security+ 考试。CompTIA 已于 2024 年 7 月 31 日停用 SY0-601，因此仍按 601 目标编写的练习测试，考的是一份你根本不会参加的大纲。

本题库按 SY0-701 编写。每道题都标明所属知识域，做完一组后你会看到各知识域的得分，知识域名称与 CompTIA 考试目标中使用的完全一致。

Security+ 的题目长什么样

大多数 Security+ 题目会给你一个简短情景——一条告警、一项配置、一处策略漏洞——然后问哪种控制措施、行动或解释最合适。几个选项看起来都合理，但根据证据只有一个最站得住。实操题会要求你给步骤排序、匹配概念，或根据描述完成一项简单配置。

Multiple-choice (single and multiple response) plus performance-based questions (PBQs)。免费预览会混合这两类题型，让你在付费之前就看清题目形式。

怎样使用练习测试，它才真的有预测价值

先不计时做完前 20 道题，并把每一条解析都读完，包括你答对的那些。只有当你弄明白三个错误选项为什么错，练习测试才算教会了你东西；考试考的正是这种判断力，而这恰恰是大多数人跳过的部分。

然后按知识域分组练习，不要随机做。Security Operations 是本题库中最大的知识域，有 135 道题，在考试中也是最大或第二大的知识域。五道题得出的知识域分数毫无意义；四十道题得出的分数才说明问题。

只有当每个知识域都稳定之后，再去做计时模拟。模拟考在结束时才给分，交卷前没有任何反馈，这是不花钱参加正式考试的前提下最接近考试日的体验。

练习测试可能掩盖的 Security+ 陷阱

死记定义。Security+ 很少问某个术语是什么意思；它问的是在这个情境下，四个合理做法中哪一个才正确。按记忆力给分的练习测试只会让你自我感觉良好。

Security Operations 和 Threats, Vulnerabilities & Mitigations 占分最多，情景题也最多。如果你在这两个知识域的分数低于平均水平，就从它们开始。

练习分数无法告诉你的事

任何练习正确率都不能预测你是否通过。CompTIA 的考试采用 100–900 的量表计分，它不是百分比，而且正式考试从一个你从未见过的题池中抽题。把练习分数当作你思路哪里慢的地图，而不是预测。

这些题目均为原创，依据公开的考试目标编写。它们不是泄露的真题，也不自称是真题。凡是承诺"真实考题"的练习测试，要么在撒谎，要么在卖一旦被查实就会让你被取消认证的东西。

常见问题

常见疑问

Security+ 练习测试免费吗？

注册账户后前 20 道题免费，无需绑卡。包含 31 道实操题在内的 546 道完整题库，一次性付费 19.99 欧元即可永久访问。

正式 Security+ 考试有多少道题？

Up to 90 questions，时长 90 minutes。及格分数为 750 (scored on a 100–900 scale)。

这些是 Security+ 的真题吗？

不是。它们是依据 SY0-701 考试目标编写的原创题目。使用泄露的考试内容违反 CompTIA 的考生协议，可能导致你的认证被撤销。

练习测试覆盖 SY0-701 吗？

覆盖。SY0-701 是现行的 Security+ 考试。题库最近一次复核时间为 2026年10月。

资料来源

本页数据已于2026年10月8日对照以下来源核实。数据可能变动，报名前请向考试机构确认。

看看你在 Security+ 上处于什么水平

20 道免费题目，无需信用卡。你的领域得分会显示在预约考试前哪些方面还需要加强。

免费试做 20 道 Security+ 题