Merge pull request #310727 from Srijan-Chak012/patch-14

Add FAQ about NSG flow logs and Traffic Analytics

Author: prmerger-automator[bot]

articles/network-watcher/frequently-asked-questions.yml

@@ -389,7 +389,12 @@ sections:
         answer: |
           Traffic analytics is metered. The metering is based on processing of raw flow log data by the service. For more information, see [Network Watcher pricing](https://azure.microsoft.com/pricing/details/network-watcher/).          
           Enhanced logs ingested in Log Analytics workspace can be retained at no charge for up to first 31 days (or 90 days if Microsoft Sentinel is enabled on the workspace). For more information, see [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/).
-          
+
+      - question: |
+          Why do I see additional storage transactions when NSG flow logs and Traffic Analytics are enabled?
+        answer: |
+          When NSG flow logs are enabled, flow log records are written to the configured Azure Storage account. To generate Traffic Analytics insights, Azure Network Watcher performs backend read operations on this stored data to process, aggregate, and enrich flow log records. These backend storage interactions are required for analytics functionality and occur even if you do not actively query the data. You can control the overall cost impact by adjusting flow log scope, retention, and whether Traffic Analytics is enabled.
+      
       - question: |
           How frequently does traffic analytics process data?
         answer: |