Which option would let you define multiple nested blocks inside a VM resource using a variable's values?

• A. Dynamic blocks
• B. Local values
• C. Data source
• D. Count arguments

Answer: (A)

Dynamic blocks let you generate several nested blocks inside a resource by iterating over a variable’s values. In Terraform, you can declare a dynamic block with for_each and provide the content that should appear for each item. This lets you create multiple nested blocks—such as several network_interface or disk blocks—within a single VM resource, all driven by a variable like var.nic_configs. The for_each loop runs once per element, and content uses the current element to fill in the fields.

Local values are just computed expressions stored for reuse and don’t by themselves create multiple blocks. Data sources fetch information but don’t define nested blocks inside a resource. Count duplicates entire resources rather than generating multiple inner blocks inside one resource. So dynamic blocks are the right tool for building many nested blocks from a variable’s values.