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Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate (MS-721)
MS-721 协作通信系统工程师认证备考题库，涵盖 Teams Phone、PSTN 连接和 Teams Rooms，48+ 道真题附详细解析。
$0
Exam Fee
48
Questions
90m
Exam Duration
70/100
Passing Score
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What this certification covers
This page is structured for quick scanning first: exam format, fit, prep time, and the actual study scope.
You will work with
Teams Phone 配置与管理PSTN 连接 (Direct Routing / Calling Plans)SBC 配置与排障自动助理和呼叫队列Teams Rooms 部署与管理音频会议配置Teams 会议和事件管理通话质量监控与排障
After preparation
- Pass the MS-721 certification exam with confidence
- Master key concepts across all exam domains
- Identify and strengthen weak areas before the exam
Exam details
Exam Code
MS-721
Provider
Microsoft Azure
Duration
90 minutes
Question Count
48 questions
Passing Score
70/100
Validity
3 years
Exam Fee
$0 USD
Question Types
single-choice, multiple-choice
Languages
English
Official Page
Who should take it
Good fit
- 协作通信系统工程师和统一通信工程师
- 负责 Teams Phone 和 PSTN 连接部署的 IT 专业人员
- Teams Rooms 设备部署和管理工程师
- 从传统 PBX 迁移到 Teams 的通信专家
Before you start
- 具备 Microsoft Teams 管理经验
- 了解 SIP/VoIP 网络和 SBC（Session Border Controller）基础
- 熟悉 PSTN 网络基础和 DNS 配置
- 有 Microsoft 365 管理中心和 Teams Admin Center 操作经验
Study preparation
With hands-on AWS
4-6 weeks
From scratch
8-10 weeks
Daily pace
1-2 hours/day
Learning path preview
7 chapters1
MS-721 Exam Overview
40 min2
Configure PSTN connectivity
30 min3
Configure Teams Phone
30 min4
Configure auto attendants/call queues
30 min5
Troubleshoot
30 min6
+ 1 more chapters inside the full pathPlan Teams voice solution
30 minCertification comparison
| MS-721 | AI-100 | AI-102 | |
|---|---|---|---|
| Provider | Azure | Azure | Azure |
| Level | 助理级 | 助理级 | 助理级 |
| Fee | $0 | $0 | $0 |
| Duration | 90 min | 90 min | 90 min |
| Question count | 48 | 65 | 65 |
| Validity | 3 yrs | 3 yrs | 3 yrs |
Study tips and common mistakes
💡
48 题 90 分钟，平均每题 2 分钟，合理分配时间
💡
及格分 70/100，不确定的题先标记跳过，回头再做
💡
排除法非常有用 — 先排掉明显错误的选项，剩下的再分析
⚠️
没有读完所有选项就选答案 — 题目经常有"最佳"答案和"正确但不最佳"的干扰项
⚠️
备考只刷题不理解原理 — 考试场景题需要理解底层概念
⚠️
忽略时间管理 — 在难题上卡太久，导致后面简单题没时间做
FAQ
Frequently Asked Questions
If you plan to take MS-721, start with real practice.
48+ questions, chapter-by-chapter learning, mock exams, wrong-question review, and AI tutor support live in the exam page.
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