- A
The VTY lines are configured for telnet only; SSH requires 'transport input ssh'.
This is correct because SSH requires the VTY lines to accept SSH connections. The current configuration shows 'transport input telnet', which only allows Telnet. Changing to 'transport input ssh' or 'transport input all' enables SSH.
- B
The SSH server is not enabled because the crypto key is missing or 'ip ssh' is not configured.
Why wrong: This is incorrect because while missing crypto keys or 'ip ssh' configuration can prevent SSH, the primary issue is the VTY transport setting. The question states the script fails to connect, and the VTY lines are configured for telnet only, which directly blocks SSH.
- C
The SSH version is set to version 1, which is not supported by the Python script.
Why wrong: This is incorrect because SSH version 1 is deprecated and insecure, but the question does not provide any evidence that version 1 is configured. The typical default is SSH version 2, and the script would likely support both.
- D
The domain name is not configured, which is required for SSH key generation.
Why wrong: This is incorrect because while a domain name is needed for RSA key generation, the question does not indicate that keys are missing. The immediate problem is the VTY transport setting, not the absence of a domain name.
Quick Answer
The answer is that the VTY lines are configured for telnet only, and SSH requires the transport input ssh command. This is correct because the transport input setting on the VTY lines dictates which protocols are allowed for remote management; without specifying ssh, the router rejects SSH connections, causing the netmiko script to fail. On the CCNA 200-301 v2 exam, this tests your understanding of remote access configuration and the common misstep of leaving the default transport input telnet in place. A frequent trap is assuming that generating RSA keys alone enables SSH—you must also explicitly set transport input ssh (or transport input all) on the VTY lines. Remember the mnemonic: "SSH needs a key and a VTY say."
CCNA AI and Network Operations Practice Question
This 200-301 practice question tests your understanding of ai and network operations. 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.
You are connected to R1, a Cisco IOS-XE router that provides connectivity for the 192.168.10.0/24 network. The network operations team uses a Python script with netmiko to push configuration changes. However, the script fails to connect to R1. You need to verify the SSH configuration on R1.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The VTY lines are configured for telnet only; SSH requires 'transport input ssh'.
The VTY lines are configured for telnet only. SSH requires 'transport input ssh' (or 'transport input all'). Additionally, the SSH server may not be enabled if the crypto key is missing or the ip ssh command is not present. The commands show that transport input is telnet, so the script cannot connect via SSH. Changing to 'transport input ssh' resolves the issue.
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 VTY lines are configured for telnet only; SSH requires 'transport input ssh'.
Why this is correct
This is correct because SSH requires the VTY lines to accept SSH connections. The current configuration shows 'transport input telnet', which only allows Telnet. Changing to 'transport input ssh' or 'transport input all' enables SSH.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The SSH server is not enabled because the crypto key is missing or 'ip ssh' is not configured.
- ✗
The SSH version is set to version 1, which is not supported by the Python script.
Why it's wrong here
This is incorrect because SSH version 1 is deprecated and insecure, but the question does not provide any evidence that version 1 is configured. The typical default is SSH version 2, and the script would likely support both.
- ✗
The domain name is not configured, which is required for SSH key generation.
Why it's wrong here
This is incorrect because while a domain name is needed for RSA key generation, the question does not indicate that keys are missing. The immediate problem is the VTY transport setting, not the absence of a domain name.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓The VTY lines are configured for telnet only; SSH requires 'transport input ssh'.Correct answer▾
Why this is correct
This is correct because SSH requires the VTY lines to accept SSH connections. The current configuration shows 'transport input telnet', which only allows Telnet. Changing to 'transport input ssh' or 'transport input all' enables SSH.
✗The SSH server is not enabled because the crypto key is missing or 'ip ssh' is not configured.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: The crypto key and 'ip ssh' are necessary for SSH operation, but the VTY transport setting is the immediate cause of connection failure.
Why candidates choose this
Candidates pick this because they know SSH requires crypto keys and the 'ip ssh' command, but overlook that the VTY lines must also accept SSH.
✗The SSH version is set to version 1, which is not supported by the Python script.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: There is no indication that SSH version 1 is in use; the issue is the VTY transport setting.
Why candidates choose this
Candidates pick this because they know SSH version 1 is outdated and may cause compatibility issues, but it is not the most likely cause here.
✗The domain name is not configured, which is required for SSH key generation.Wrong answer — click to see why▾
Why this is wrong here
The specific factual error: A domain name is required for SSH key generation, but the VTY transport setting is the direct cause of the connection failure.
Why candidates choose this
Candidates pick this because they recall that SSH setup requires a domain name and RSA keys, but they overlook the VTY line configuration.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 200-301 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 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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AI and Network Operations — study guide chapter
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FAQ
Questions learners often ask
What does this 200-301 question test?
AI and Network Operations — This question tests AI and Network Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The VTY lines are configured for telnet only; SSH requires 'transport input ssh'. — The VTY lines are configured for telnet only. SSH requires 'transport input ssh' (or 'transport input all'). Additionally, the SSH server may not be enabled if the crypto key is missing or the ip ssh command is not present. The commands show that transport input is telnet, so the script cannot connect via SSH. Changing to 'transport input ssh' resolves the issue.
What should I do if I get this 200-301 question wrong?
Identify which 200-301 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 7, 2026
This 200-301 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-301 exam.
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