I had a class today and discussed the usage of these two adjacent prepositions (Can two prepositions be used one after the other? "my guideline and reference in this case") with a student who believes it sounds OK to him when two prepositions are used in the following way and he doesn't see any errors in the syntax of the sentence.
The context of the sentence:
AWS doesn't leave us unequipped to secure ourselves. For example, every domain that the customer has control over, they have provided us with the necessary tools to achieve optimum security.
A brief list:
Network firewalls - giving us the ability to create VPCs (Virtual Private Cloud) with private networks.Connectivity options which enable private, or dedicated, connections from our office or on-premises environment.DDoS mitigation technologies that can be applied to layer 3 or 4 and layer 7.Automatic encryption of all traffic coming through via AWS global and regional networks."
Automatic encryption of all traffic coming through via AWS global and regional networks.
I have two issues with it:
- adjacent prepositions