Security audit
Security checks for vulnerabilities and agentic risk
This is a markdown-only bilingual interview-prep skill; the scanner flags are mostly language/section comments and broad trigger wording, not unsafe behavior.
Before installing, note that this skill is a paid bilingual interview-prep reference with many reusable templates. It should not be treated as personalized legal, immigration, or financial advice for salary negotiations, and broad interview-related prompts may invoke it more often than expected.
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
# 🎯 面经 / Interview Master — BA & Data Analyst Interview Guide
<!-- LANG: Detect user language and respond in the same language. If the user writes in English (or any Latin script), reply in English. If Chinese, reply in Chinese. -->
---
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
**回答策略**：见 `references/methodologies.md`
<!-- EN -->
**Common Follow-ups**:
- "What is PSM/DID? What are its pros and cons?"
- "What type of A/B test did you run?"
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
找到使用和未使用AI选房工具的两批人，做分组对照分析。
<!-- EN -->
**Definition**: Propensity Score Matching — finds matched control/treatment groups based on similar observable characteristics to reduce selection bias.
**Key Points**:
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
我通过PSM找到特征相近的两批经纪人（各300人），然后用DID评估AI选房工具的效果。
<!-- EN -->
**Definition**: Difference in Differences — compares treatment and control groups before and after an intervention to isolate the causal effect from time trends and confounders.
**Key Points**:
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
通过人工+模型的方式让分级更科学。
<!-- EN -->
**Use Case**: Supplements manually-set RFM thresholds when the data distribution doesn't align with business intuition.
**Interview Answer Example**:
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
[项目名称] + [业务背景] + [我的职责] + [方法] + [量化成果]
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
<!-- EN -->
✅ Quantify by:
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
1. 招聘网站 — BOSS直聘、拉勾
看同类岗位的薪资范围
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
1. 招聘网站 — BOSS直聘、拉勾
看同类岗位的薪资范围
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
具体可以协商。"
<!-- EN -->
"Based on my X years of experience, my skill set, and current market rates, I'm targeting an annual package of $XX, or a monthly base of $XXK+.
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
能否给我1-2天时间确认？"
<!-- EN -->
Script 1 (Anchor on value): "The market rate for this level is $20K+, and with my XX experience that's highly relevant
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
希望能在薪资上有所体现。"
<!-- EN -->
"I'm also considering another offer at $XXK with solid overall terms. I'm genuinely more interested in this opportunity, and I'd love to find a way
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
❌ 抱怨前公司 — "上家给得太低了" → 会让人觉得你没价值
<!-- EN -->
❌ Salary-only focus — show genuine interest in the role and company ❌ Bluffing — have real leverage, never fake competing offers
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
解题框架：
1. 理解业务目标
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
解题框架:
1. 理解业务目标
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
→ 量化结果：转化率提升57%
<!-- EN -->
Issue 1: Passive usage inflating adoption
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
→ 量化结果:转化率提升57%
<!-- EN -->
Issue 1: Passive usage inflating adoption
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
<!-- EN -->
North Star metrics:
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
<!-- EN -->
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
Q: 你觉得哪些行业发展比较好？
<!-- EN -->
Q: How much do you know about our company/industry? Q: What are the biggest pain points in this industry?
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
和产运对齐后推AB测试验证。"
<!-- EN -->
Q: If you were to drive growth for Company A using data, what would you do?
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
# 面试问题分类详细清单 / Interview Question Bank by Category
<!-- LANG: Match the user's language. CN questions → CN answer guidance. EN questions → EN answer guidance. Both languages always available below each heading. -->
---
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
# 数据分析方法论详解 / Data Analytics Methodology Deep-Dives
<!-- LANG: Reply in the user's language. Match CN/EN accordingly. -->
---
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
<!-- EN -->
This is the most frequently tested combo in BA/DA interviews!
Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
4. 重新计算每个簇的中心
5. 重复3-4，直到中心不再变化
<!-- EN -->
**Definition**: K-means partitions data into K clusters to minimize within-cluster variance.
**Algorithm steps**:
No suspicious patterns detected.