Given the below resource configuration - resource "aws_instance" "web" { # ... count = 4 } What does the terraform resource address aws_instance.web refer to?

Question

Options

• AIt refers to all 4 web instances , together , for further individual segregation , indexing is
• BIt refers to the last web EC2 instance , as by default , if no index is provided , the last / N-
• CIt refers to the first web EC2 instance out of the 4 ,as by default , if no index is provided ,
• DThe above will result in a syntax error , as it is not syntactically correct . Resources

• A
  92% (45)
• B
  4% (2)
• C
  2% (1)
• D
  2% (1)

Explanation

When the 'count' meta-argument is used, Terraform creates multiple instances indexed from 0 to N-1. The bare reference 'aws_instance.web' (without an index) refers to the entire collection of all 4 instances as a list. To target a specific instance, you use index notation: aws_instance.web[0], aws_instance.web[1], etc. This collective reference is useful in expressions like 'for_each' or when passing the full list to another resource.

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