If a company needed to guarantee through contract and SLAs that a cloud provider would always have available sufficient resources to start their services and provide a certain level of provisioning, what would the contract need to refer to? 

Answer options:

A. Limit
B. Reservation
C. Assurance
D. Guarantee

B

A reservation guarantees to a cloud customer that they will have access to a minimal level of resources to run their systems, which will help mitigate against DoS attacks or systems that consume high levels of resources. A limit refers to the enforcement of a maximum level of resources that can be consumed by or allocated to a cloud customer, service, or system. Both guarantee and assurance are terms that sound similar to reservation, but they are not correct choices.