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NEW QUESTION # 16
What is one disadvantage of using dynamic blocks in Terraform?
- A. Dynamic blocks can construct repeatable nested blocks
- B. They cannot be used to loop through a list of values
- C. They make configuration harder to read and understand
- D. Terraform will run more slowly
Answer: C
Explanation:
This is one disadvantage of using dynamic blocks in Terraform, as they can introduce complexity and reduce readability of the configuration. The other options are either advantages or incorrect statements.
NEW QUESTION # 17
Which of the following is not a valid Terraform collection type?
- A. List
- B. Map
- C. Tree
- D. set
Answer: C
Explanation:
This is not a valid Terraform collection type, as Terraform only supports three collection types: list, map, and set. A tree is a data structure that consists of nodes with parent-child relationships, which is not supported by Terraform.
NEW QUESTION # 18
When should you use the force-unlock command?
- A. You have a high priority change
- B. You see a status message that you cannot acquire the lock
- C. apply failed due to a state lock
- D. Automatic unlocking failed
Answer: D
Explanation:
You should use the force-unlock command when automatic unlocking failed. Terraform will lock your state for all operations that could write state, such as plan, apply, or destroy. This prevents others from acquiring the lock and potentially corrupting your state. State locking happens automatically on all operations that could write state and you won't see any message that it is happening. If state locking fails, Terraform will not continue. You can disable state locking for most commands with the - lock flag but it is not recommended. If acquiring the lock is taking longer than expected, Terraform will output a status message. If Terraform doesn't output a message, state locking is still occurring if your backend supports it. Terraform has a force-unlock command to manually unlock the state if unlocking failed. Be very careful with this command. If you unlock the state when someone else is holding the lock it could cause multiple writers. Force unlock should only be used to unlock your own lock in the situation where automatic unlocking failed. To protect you, the force-unlock command requires a unique lock ID. Terraform will output this lock ID if unlocking fails. This lock ID acts as a nonce, ensuring that locks and unlocks target the correct lock. The other situations are not valid reasons to use the force-unlock command. You should not use the force-unlock command if you have a high priority change, if apply failed due to a state lock, or if you see a status message that you cannot acquire the lock. These situations indicate that someone else is holding the lock and you should wait for them to finish their operation or contact them to resolve the issue. Using the force-unlock command in these cases could result in data loss or inconsistency.
Reference = [State Locking], [Command: force-unlock]
NEW QUESTION # 19
Which of these commands makes your code more human readable?
- A. Terraform fmt
- B. Terraform validate
- C. Terraform output
- D. Terraform show
Answer: A
Explanation:
The command that makes your code more human readable is terraform fmt. This command is used to rewrite Terraform configuration files to a canonical format and style, following the Terraform language style conventions and other minor adjustments for readability. The command is optional, opinionated, and has no customization options, but it is recommended to ensure consistency of style across different Terraform codebases. Consistency can help your team understand the code more quickly and easily, making the use of terraform fmt very important. You can run this command on your configuration files before committing them to source control or as part of your CI/CD pipeline. Reference = : Command:
fmt : Using Terraform fmt Command to Format Your Terraform Code
NEW QUESTION # 20
How does Terraform determine dependencies between resources?
- A. Terraform requires resource dependencies to be defined as modules and sourced in order
- B. Terraform requires all dependencies between resources to be specified using the depends_on parameter
- C. Terraform automatically builds a resource graph based on resources provisioners, special meta- parameters, and the stale file (if present}
- D. Terraform requires resources in a configuration to be listed m the order they will be created to determine dependencies
Answer: C
Explanation:
This is how Terraform determines dependencies between resources, by using the references between them in the configuration files and other factors that affect the order of operations.
NEW QUESTION # 21
Which of the following is not a valid Terraform variable type?
- A. string
- B. array
- C. list
- D. nap
Answer: B
Explanation:
This is not a valid Terraform variable type. The other options are valid variable types that can store different kinds of values2.
NEW QUESTION # 22
How can you trigger a run in a Terraform Cloud workspace that is connected to a Version Control System (VCS) repository?
- A. Commit a change to the VCS working directory and branch that the Terraform Cloud workspace is connected to
- B. Only Terraform Cloud organization owners can set workspace variables on VCS connected workspaces
- C. Only Terraform Cloud organization owners can approve plans in VCS connected workspaces
- D. Only members of a VCS organization can open a pull request against repositories that are connected to Terraform Cloud workspaces
Answer: A
Explanation:
This will trigger a run in the Terraform Cloud workspace, which will perform a plan and apply operation on the infrastructure defined by the Terraform configuration files in the VCS repository.
NEW QUESTION # 23
Which of the following is not a valid siring function in Terraform?
- A. Split
- B. join
- C. slice
- D. choaf
Answer: D
Explanation:
This is not a valid string function in Terraform. The other options are valid string functions that can manipulate strings in various ways2.
NEW QUESTION # 24
When you use a remote backend that needs authentication, HashiCorp recommends that you:
- A. Keep the Terraform configuration files in a secret store
- B. Write the authentication credentials in the Terraform configuration files
- C. Push your Terraform configuration to an encrypted git repository
- D. Use partial configuration to load the authentication credentials outside of the Terraform code
Answer: D
Explanation:
This is the recommended way to use a remote backend that needs authentication, as it allows you to provide the credentials via environment variables, command-line arguments, or interactive prompts, without storing them in the Terraform configuration files.
NEW QUESTION # 25
You decide to move a Terraform state file to Amazon S3 from another location.
You write the code below into a file called backend.tf.
Which command will migrate your current state file to the new S3 remote backend?
- A. terraform state
- B. terraform refresh
- C. terraform init
- D. terraform push
Answer: C
Explanation:
This command will initialize the new backend and prompt you to migrate the existing state file to the new location3. The other commands are not relevant for this task.
NEW QUESTION # 26
HashiCorp Configuration Language (HCL) supports user-denned functions.
- A. True
- B. False
Answer: B
Explanation:
HashiCorp Configuration Language (HCL) does not support user-defined functions. You can only use the built-in functions that are provided by the language. The built-in functions allow you to perform various operations and transformations on values within expressions. The general syntax for function calls is a function name followed by comma-separated arguments in parentheses, such as max(5, 12, 9). You can find the documentation for all of the available built-in functions in the Terraform Registry or the Packer Documentation, depending on which tool you are using. Reference = : Functions - Configuration Language | Terraform : Functions - Configuration Language | Packer
NEW QUESTION # 27
Terraform configuration can only import modules from the public registry.
- A. True
- B. False
Answer: B
Explanation:
Terraform configuration can import modules from various sources, not only from the public registry.
Modules can be sourced from local file paths, Git repositories, HTTP URLs, Mercurial repositories, S3 buckets, and GCS buckets. Terraform supports a number of common conventions and syntaxes for specifying module sources, as documented in the [Module Sources] page. Reference = [Module Sources]
NEW QUESTION # 28
In Terraform HCL, an object type of object ({name=string, age-number}) would match this value.
- A.
- B.
- C.
- D.
Answer: C
NEW QUESTION # 29
When do changes invoked by terraform apply take effect?
- A. None of the above are correct
- B. Once the resource provider has fulfilled the request
- C. After Terraform has updated the state file
- D. Immediately
Answer: B
Explanation:
Changes invoked by terraform apply take effect once the resource provider has fulfilled the request, not after Terraform has updated the state file or immediately. The state file is only a reflection of the real resources, not a source of truth.
NEW QUESTION # 30
A module can always refer to all variables declared in its parent module.
- A. True
- B. False
Answer: B
Explanation:
A module cannot always refer to all variables declared in its parent module, as it needs to explicitly declare input variables and assign values to them from the parent module's arguments. A module cannot access the parent module's variables directly, unless they are passed as input arguments.
NEW QUESTION # 31
Which command lets you experiment with terraform expressions?
- A. Terraform env
- B. Terraform console
- C. Terraform validate
- D. Terraform test
Answer: B
Explanation:
This is the command that lets you experiment with Terraform expressions, by providing an interactive console that allows you to evaluate expressions and see their results. You can use this command to test your expressions before using them in your configuration files.
NEW QUESTION # 32
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