EX294 Implement advanced Ansible automation Practice Question
This EX294 practice question tests your understanding of implement advanced ansible automation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Network Topology
Given the command and error above, what is the most likely cause of the failure?
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 --vault-id syntax is incorrect; 'vault@prompt' should be a label and password source, not a vault file.
Option D is correct because --vault-id expects a password source, not an encrypted file; the vault file itself should not be specified as a vault-id. Option A is wrong because --check should work. Option B is wrong because the vault file exists. Option C is wrong because encryption is needed, but the error message says the vault password must be encrypted, which is misleading; actually the vault-id parameter is misused.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 vault file 'vault@prompt' does not exist.
Why it's wrong here
Error indicates it's an encryption issue, not missing file.
✗
The vault password file must be encrypted with ansible-vault.
Why it's wrong here
The password file itself is not encrypted.
✓
The --vault-id syntax is incorrect; 'vault@prompt' should be a label and password source, not a vault file.
Why this is correct
Users often confuse vault-id with vault file; proper usage is '--vault-id @prompt' or '--vault-id myvault@prompt'.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The --check flag is incompatible with vault encryption.
Why it's wrong here
--check works with vault.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related EX294 NAT questions on configuration and troubleshooting.
Implement advanced Ansible automation — This question tests Implement advanced Ansible automation — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The --vault-id syntax is incorrect; 'vault@prompt' should be a label and password source, not a vault file. — Option D is correct because --vault-id expects a password source, not an encrypted file; the vault file itself should not be specified as a vault-id. Option A is wrong because --check should work. Option B is wrong because the vault file exists. Option C is wrong because encryption is needed, but the error message says the vault password must be encrypted, which is misleading; actually the vault-id parameter is misused.
What should I do if I get this EX294 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related EX294 NAT questions on configuration and troubleshooting.
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?
Static NAT maps one inside address to one outside address.
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