Question 381 of 2,152

Device Management →mediumMultiple SelectObjective-mapped

Quick Answer

The answer is that SSH version 2 is the default and is automatically enabled when RSA keys are generated on Cisco IOS-XE. This is correct because SSH version 2 is the secure, recommended protocol, and the router automatically activates it once a valid RSA key pair exists—no explicit global command is needed to enable SSH. The key pair generation itself requires both a configured hostname and domain name, as these form the fully qualified domain name used in the key label. On the Cisco CCNP ENARSI 300-410 exam, this concept tests your understanding of SSH server prerequisites and default behavior, often appearing in multiple-choice questions where a trap distracts you with the need to manually set the version or apply a global transport command. Remember, the ‘ip ssh version’ command only overrides the default if you need version 1, and ‘transport input ssh’ is applied per VTY line, not globally. Memory tip: “Hostname and domain, then keys—SSHv2 comes for free.”

300-410 Device Management Practice Question

This 300-410 practice question tests your understanding of device management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.

Which TWO statements about the Cisco IOS-XE SSH server configuration are true? (Choose TWO.)

Question 1mediummulti select

Full question →

A
The hostname and domain name must be configured before generating RSA keys.
RSA keys require a fully qualified domain name (FQDN) which uses both hostname and domain name.
B
SSH version 2 is the default and is automatically enabled when RSA keys are generated.
Cisco IOS-XE defaults to SSH version 2 when RSA keys are generated.
C
The command 'ip ssh version 1' is required to enable SSH.
Why wrong: SSH version 2 is default; version 1 is deprecated and not recommended.
D
The command 'transport input ssh' must be configured globally.
Why wrong: This command is applied under the VTY line configuration, not globally.
E
RSA key modulus size must be at least 2048 bits for SSH version 2.
Why wrong: While 2048 bits is recommended, SSH version 2 works with smaller modulus sizes as well.

Full breakdown with real-world context →

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 hostname and domain name must be configured before generating RSA keys.

SSH version 2 is the default and recommended version. The hostname and domain name are required to generate the RSA key pair for SSH. The 'ip ssh version' command is used to set the version, but version 2 is default. The 'transport input ssh' command is applied to the VTY lines, not globally.

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 hostname and domain name must be configured before generating RSA keys.
Why this is correct
RSA keys require a fully qualified domain name (FQDN) which uses both hostname and domain name.
Related concept
Read the scenario before looking for a memorised answer.
✓
SSH version 2 is the default and is automatically enabled when RSA keys are generated.
Why this is correct
Cisco IOS-XE defaults to SSH version 2 when RSA keys are generated.
Related concept
Read the scenario before looking for a memorised answer.
✗
The command 'ip ssh version 1' is required to enable SSH.
Why it's wrong here
SSH version 2 is default; version 1 is deprecated and not recommended.
✗
The command 'transport input ssh' must be configured globally.
Why it's wrong here
This command is applied under the VTY line configuration, not globally.
✗
RSA key modulus size must be at least 2048 bits for SSH version 2.
Why it's wrong here
While 2048 bits is recommended, SSH version 2 works with smaller modulus sizes as well.

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.

Trap categories for this question

Command / output trap
This command is applied under the VTY line configuration, not globally.

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 300-410 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 300-410 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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FAQ

Questions learners often ask

What does this 300-410 question test?

Device Management — This question tests Device Management — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The hostname and domain name must be configured before generating RSA keys. — SSH version 2 is the default and recommended version. The hostname and domain name are required to generate the RSA key pair for SSH. The 'ip ssh version' command is used to set the version, but version 2 is default. The 'transport input ssh' command is applied to the VTY lines, not globally.

What should I do if I get this 300-410 question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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