Question 650
A professional architect is reviewing two independent workstreams. Requirement A: Hundreds of virtual machines require orchestrated recovery into AWS after a primary on-premises site failure. Requirement B: Network administrators must manage a shared subnet centrally while application accounts place their own resources in it. Select TWO actions, one for each independently scoped requirement.
Explanation
Correct Answers
This action meets the independently stated requirement B: Network administrators must manage a shared subnet centrally while application accounts place their own resources in it. VPC sharing separates network ownership from application resource ownership. A direct acceptance check is: Participant-owned permitted resources deploy into the shared subnet while networking account retains network ownership.
This action meets the independently stated requirement A: Hundreds of virtual machines require orchestrated recovery into AWS after a primary on-premises site failure. AWS Elastic Disaster Recovery supports block-level replication and automated recovery launches. A direct acceptance check is: A drilled failover boots recoverable instances and meets tested recovery objectives and dependency order.
Incorrect Answers
This action targets a different technical need: Financial backups must survive destruction of the primary application account by a compromised administrator. It does not replace either required solution in A or B. Cross-account backup isolation reduces the effect of compromise of an application account; verify the two stated requirements independently rather than accepting an unrelated change.
This action targets a different technical need: A startup expects to grow from five accounts to 100 and needs baseline account vending and preventive guardrails. It does not replace either required solution in A or B. AWS Control Tower provides managed landing-zone governance and standardized account provisioning; verify the two stated requirements independently rather than accepting an unrelated change.
This action targets a different technical need: Two acquired subsidiaries have overlapping RFC1918 VPC CIDRs but must exchange traffic with a shared integration endpoint. It does not replace either required solution in A or B. Overlapping address spaces require translation or service-level isolation rather than simple routed peering; verify the two stated requirements independently rather than accepting an unrelated change.