Final answer:
To open a support ticket with Oracle Cloud Infrastructure (OCI), a user needs a paid subscription or a specific support plan. Free Tier accounts are limited to community support, while Paid Accounts have access to direct support from Oracle.
Step-by-step explanation:
The type of Oracle Cloud Infrastructure (OCI) account that allows opening a support ticket is the one that has a paid subscription or support plan. When you sign up for OCI, you have the option to choose between different types of accounts and support plans. Users with a Free Tier account may only have access to limited community support, while those with Paid Accounts typically have the ability to open support tickets directly with Oracle for more personalized and immediate assistance. The ability to open support tickets is especially important in a business context, where timely resolution of technical issues is crucial.