Update dns-limits.md

Documented two new limits

Author: rohinkoul

includes/dns-limits.md

@@ -1,9 +1,9 @@
 ---
 author: rothja
-ms.service: billing
+ms.service: dns
 ms.topic: include
-ms.date: 6/15/2019	
-ms.author: victorh
+ms.date: 2/14/2020	
+ms.author: rohink
 ---
 **Public DNS zones**
 
@@ -20,5 +20,8 @@ ms.author: victorh
 | Virtual Networks Links per private DNS zones with auto-registration enabled |100|
 | Number of private DNS zones a virtual network can get linked to with auto-registration enabled |1|
 | Number of private DNS zones a virtual network can get linked |1000|
+| Number of DNS queries a virtual machine can send to Azure DNS resolver, per second |500 <sup>2</sup> |
+| Maximum number of DNS queries queued (pending response) per virtual machine |200 <sup>2</sup> |
 
-<sup>1</sup>If you need to increase these limits, contact Azure Support.
+<sup>1</sup>If you need to increase these limits, contact Azure Support.
+<sup>2</sup>These limits are applied to every individual virtual machine and not at the virtual network level. DNS queries exceeding these limits are dropped.