A large organization has a single AWS account. What are the advantages (CLF-C02)

Correct answer: A) It allows for administrative isolation between different workloads and D) Having multiple accounts reduces the risks associated with malicious activity targeted at a single account.
A. Administrative isolation between different workloads: By reconfiguring the single account into multiple accounts, the organization can achieve administrative isolation between different workloads, teams, or departments. This allows for better access control, security, and management of resources, as each account can have its own set of users, roles, and permissions.

D. Reduced risk of malicious activity: Having multiple accounts reduces the risks associated with malicious activity targeted at a single account. If one account is compromised, the other accounts remain unaffected, reducing the blast radius of a potential security breach.

The other options are not correct:
B. Discounts are typically applied on a yearly basis, not quarterly, and are not directly related to having multiple accounts.
C. Transitioning objects from Amazon S3 to Amazon S3 Glacier is a storage class transition, and the cost is based on the storage class, not the account structure.
E. Amazon QuickSight is a fast, cloud-powered business intelligence service, but it does not provide a cost tool specifically for environments running in multiple accounts.