The correct answer is that the state file for the current workspace was deleted or corrupted, as the error 'blob (key) not found' specifically indicates Terraform cannot locate the state file in the Azure storage container. This occurs because Terraform relies on a single state file per workspace stored as a blob in the remote backend; when that blob key is missing—often due to accidental deletion or corruption after a network outage—Terraform cannot read the existing state to plan or apply changes. On the HashiCorp Terraform Associate TF-003 exam, this scenario tests your understanding of remote state management and the distinction between backend connectivity issues and missing state data. A common trap is confusing this error with authentication failures or storage account unavailability, but the error message explicitly points to the missing blob key, not the container itself. Memory tip: think of the blob key as the unique address for your state—if the address is gone, Terraform can't find its house.
TF-003 Use the core Terraform workflow Practice Question
This TF-003 practice question tests your understanding of use the core terraform workflow. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization uses Terraform with a remote backend in Azure. After a network outage, a developer attempts to run `terraform apply` and receives the error: "Error: Failed to get existing workspaces: blob (key) not found". What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The state file for the current workspace was deleted or corrupted
Option C is correct because the error 'blob (key) not found' indicates that Terraform cannot locate the state file for the current workspace in the Azure storage container. After a network outage, the state file may have been deleted or corrupted, preventing Terraform from reading the existing state. This error is specific to the missing blob key, not to authentication or storage account availability.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The Terraform backend configuration has incorrect access key
Why it's wrong here
Incorrect access key would give an authentication error, not a blob not found.
✗
The Azure storage account was deleted
Why it's wrong here
If the storage account was deleted, the error would be about authentication or container not found.
✓
The state file for the current workspace was deleted or corrupted
Why this is correct
Correct! The blob key for the workspace's state is missing, so Terraform cannot find the state.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The workspace was not created via `terraform workspace new`
Why it's wrong here
Even if not created, Terraform would list available workspaces; this error is about a missing blob.
Common exam traps
Common exam trap: answer the scenario, not the keyword
HashiCorp often tests the distinction between authentication/authorization errors and resource-not-found errors; the trap here is that candidates may confuse a missing state file with a misconfigured backend or deleted storage account, but the specific 'blob (key) not found' message points directly to the state file blob being absent.
Detailed technical explanation
How to think about this question
Terraform stores state files as blobs in Azure Blob Storage, using the workspace name as part of the blob key (e.g., `terraform.tfstate` for the default workspace or `env:/<workspace>/terraform.tfstate` for named workspaces). The error 'blob (key) not found' is returned by the Azure SDK when a GET request for the blob returns a 404 status code. In a real-world scenario, a network outage could cause a partial write or corruption of the blob, leading to this error even if the storage account and container are intact.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the TF-003 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Use the core Terraform workflow — This question tests Use the core Terraform workflow — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The state file for the current workspace was deleted or corrupted — Option C is correct because the error 'blob (key) not found' indicates that Terraform cannot locate the state file for the current workspace in the Azure storage container. After a network outage, the state file may have been deleted or corrupted, preventing Terraform from reading the existing state. This error is specific to the missing blob key, not to authentication or storage account availability.
What should I do if I get this TF-003 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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