A cloud administrator is considering methods for securing the cloud infrastructure. Which three statements about data plane protection are true? (Choose three.)

A cloud administrator is considering methods for securing the cloud infrastructure. Which three statements about data plane protection are true? (Choose three.)
A . You must preplan security policies and test them thoroughly before you implement them in an automated fashion.
B . Define security policies alter the creation of virtual machine environments.
C . Storing sensitive information on the cloud is permissible as long as the data center architecture is resilient.
D . Out-of-date corporate security policies contribute to data exposure.
E . Encrypting data at rest on the disk is extremely helpful in assuring data protection within a cloud-based data center.
F . Data encryption is enforced only when an application requires it.

Answer: ABE