2e TERRAFORM-AUTHORING-AND-OPERATIONS-PROFESSIONAL Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which block is used to declare an input variable in Terraform configuration?

   • Alocals "name" { ... }
   • Bvariable "name" { ... }
   • Cinput "name" { ... }
   • Dparam "name" { ... }
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A CI pipeline runs `terraform plan` with the following setup: a `terraform.tfvars` file sets `instance_count = 3`, the environment variable `TF_VAR_instance_count=5` is set, and the command line includes `-var='instance_count=2'`. The variable has no default. What value will be used for `instance_count`?

   • A`3` because tfvars files are read before environment variables.
   • B`5` because environment variables override tfvars files.
   • C`2` because CLI `-var` flags have the highest precedence.
   • DThe plan will fail because the variable is assigned multiple times.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which output value type is represented by a collection of key-value pairs where each value can be of any type?

   • Atuple
   • Bmap
   • Cset
   • Dlist
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A team defines a variable to represent a load balancer configuration. Each listener needs a port, a protocol, and a target group name. They want to enforce that the port is between 1 and 65535 and that the protocol is one of `HTTP`, `HTTPS`, or `TCP`. They also need to output the listener configurations for documentation. Which variable type and validation is most appropriate?

   • A`type = list(object({ port = number, protocol = string, target_group = string }))` with validation checking port range and protocol membership.
   • B`type = map(string)` with keys as listener names and values as protocol strings, and validation checking protocol membership.
   • C`type = object({ port = number, protocol = string, target_group = string })` with validation checking protocol membership.
   • D`type = tuple([number, string, string])` with validation checking port range only.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A developer runs `terraform plan` in a CI pipeline. The configuration defines a variable `region` with a default of `us-east-1` and a variable `api_key` marked as sensitive. The pipeline sets `TF_VAR_region=eu-west-1` in the environment and passes `-var='api_key=...'` on the command line. A `terraform.tfvars` file in the directory also sets `region = "ap-south-1"`. What value of `region` will be used?

   • A`eu-west-1` because environment variables take precedence over tfvars files.
   • BThe plan will fail because `region` is assigned twice.
   • C`us-east-1` because the default is used when both environment variables and tfvars files are present.
   • D`ap-south-1` because tfvars files take precedence over environment variables.
   Reveal Solution Discussion Select an answer first