diff --git a/docs/work/certifications/microsoft/microsoft-azure-az-900.md b/docs/work/certifications/microsoft/microsoft-azure-az-900.md
index 81181bb..4fc6d59 100644
--- a/docs/work/certifications/microsoft/microsoft-azure-az-900.md
+++ b/docs/work/certifications/microsoft/microsoft-azure-az-900.md
@@ -42,4 +42,7 @@ AZ-900 的考试比较简单，但也绝对不是简单到什么都不看，随
 * [Azure Log Analytics 与 Event Hub 对比](https://www.isharkfly.com/t/azure-log-analytics-event-hub/17819)
 * [Azure Service Bus](https://www.isharkfly.com/t/azure-service-bus/17821)
 * [Azure Event Grid](https://www.isharkfly.com/t/azure-event-grid/17820)
-* [Azure Service Bus 与 Event Grid 对比](https://www.isharkfly.com/t/azure-service-bus-event-grid/17822)
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+* [Azure Service Bus 与 Event Grid 对比](https://www.isharkfly.com/t/azure-service-bus-event-grid/17822)
+* [Azure App Insights](https://www.isharkfly.com/t/untitled-ai-bot-pm/17823)
+* [Azure Microsoft Sentinel](https://www.isharkfly.com/t/untitled-ai-bot-pm/17824)
+* [Azure Microsoft Defender for Cloud](https://www.isharkfly.com/t/untitled-ai-bot-pm/17825)
\ No newline at end of file