When preparing an elastic cluster you must set the server level. Here is a list with the levels and its explanation

GCP TypeAzure TypeVirtual CPUsMemoryLevelComment
n1-standard-1StandardDS1V213.75 GB5No Internet access
n1-standard-1StandardDS1V213.75 GB6Internet access
n1-standard-2StandardDS2V227.50 GB7 
n1-standard-4StandardDS3V2415 GB8 
n1-standard-8StandardDS4V2830 GB9 
n1-standard-16StandardDS5V21660 GB10 


A trial server is always set to level 5 (without Internet access)