
Explanation:
The rules should be processed in the following order:
Rule1: This is a network rule collection with the lowest priority (100). It allows any protocol and port from any source to any destination.
Rule2: This is a NAT rule collection with the second lowest priority (200). It translates the source IP address of VM1 to a public IP address when it accesses the internet.
Rule3: This is an application rule collection with the third lowest priority (300). It allows HTTP and HTTPS traffic from any source to any destination.
Rule4: This is an application rule collection with the fourth lowest priority (400). It blocks HTTP and HTTPS traffic from any source to www.contoso.com.
Rule5: This is a network rule collection with the highest priority (500). It blocks ICMP traffic from any source to any destination.
The rules are processed from the lowest priority to the highest priority. If a rule matches the traffic, it is applied and no further rules are evaluated. If no rule matches the traffic, it is denied by default.