Quick Answer
The correct commands are authentication host-mode multi-domain and authentication port-control auto. The multi-domain host mode is essential because it allows exactly one device in the voice domain (the IP phone) and one device in the data domain (the PC) on the same switch port, which is the standard requirement for a phone-and-PC daisy-chain topology. The port-control auto command enables 802.1X authentication on the interface, forcing the port to start in the unauthorized state and only open after successful EAP exchange. On the Cisco SCOR 350-701 exam, this scenario tests your understanding of 802.1X multi-domain mode versus multi-auth mode—a common trap is selecting multi-auth, which permits multiple devices per domain and is overkill here. Remember the memory tip: “One voice, one data, one domain each” for multi-domain, and “auto to authenticate” for port-control.
This 350-701 practice question tests your understanding of secure network access, visibility and enforcement. 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.
An administrator is configuring 802.1X on a switch port for both an IP phone and a PC. Which two commands should be configured to support this scenario? (Choose two)
authentication host-mode multi-domain
Allows one voice and one data device.
dot1x pae authenticator
Why wrong: May be needed but less specific to the scenario.
authentication violation restrict
Why wrong: Violation action, not required for basic setup.
authentication port-control auto
Enables 802.1X authentication.
authentication host-mode multi-auth
Why wrong: Allows multiple devices per domain, not ideal for phone+PC.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
authentication host-mode multi-domain
Options B and C are correct. 'authentication host-mode multi-domain' (B) allows one device per domain (voice and data). 'authentication port-control auto' (C) enables 802.1X authentication on the port. Option A (multi-auth) allows multiple devices in the same domain, which is not needed. Option D (violation restrict) is an action when a violation occurs, not mandatory. Option E (dot1x pae authenticator) is required but not among the two most specific; it is often enabled by default.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
authentication host-mode multi-domain
Why this is correct
Allows one voice and one data device.
Related concept
Read the scenario before looking for a memorised answer.
dot1x pae authenticator
Why it's wrong here
May be needed but less specific to the scenario.
authentication violation restrict
Why it's wrong here
Violation action, not required for basic setup.
authentication port-control auto
Why this is correct
Enables 802.1X authentication.
Related concept
Read the scenario before looking for a memorised answer.
authentication host-mode multi-auth
Why it's wrong here
Allows multiple devices per domain, not ideal for phone+PC.
Common exam traps
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
Scenario analysis trap
May be needed but less specific to the scenario.
Detailed technical explanation
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 350-701 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
Identify which 350-701 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
Secure Network Access, Visibility and Enforcement — This question tests Secure Network Access, Visibility and Enforcement — Read the scenario before looking for a memorised answer..
The correct answer is: authentication host-mode multi-domain — Options B and C are correct. 'authentication host-mode multi-domain' (B) allows one device per domain (voice and data). 'authentication port-control auto' (C) enables 802.1X authentication on the port. Option A (multi-auth) allows multiple devices in the same domain, which is not needed. Option D (violation restrict) is an action when a violation occurs, not mandatory. Option E (dot1x pae authenticator) is required but not among the two most specific; it is often enabled by default.
Identify which 350-701 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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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