Update on various section.

Change-Id: Ibfe0875de178505079cb13fe5077a8e620c03780
diff --git a/overview/faq.rst b/overview/faq.rst
index dd19249..cbe0c3a 100644
--- a/overview/faq.rst
+++ b/overview/faq.rst
@@ -4,3 +4,22 @@
 
 FAQs
 ====
+
+    * ** Q: Does SD-Core support for roaming architecture?**
+
+      *SD-Core is primarily focused for private 5G  & private LTE use cases and*
+      *hence roaming aspects of architecture are not supported.*
+
+    * ** Q: Does SD-Core support charging functionality or CHF (charging network function)?**
+
+        *SD-Core is primarily focussed for private 5G & private LTE use cases and*
+        *hence charging related aspects are not supported.*
+
+    * ** Q: Is SD-Core/5G-Core cloud native? **
+
+        *SD-Core is not cloud native, but it runs in K8s environment.*
+        *As per road map AMF, SMF will be cloud native by the mid of 2022. This is WIP.*
+
+    * ** Q. What are the changes omec 5G has on top of free5gc? **
+
+        * Please refer this - document for details of the changes.*