This 350-701 practice question tests your understanding of cloud security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A company deploys a Cisco ASAv in AWS for VPN termination. They need to enforce multi-factor authentication (MFA) for remote access VPN users. Which Cisco solution integrates with ASAv to provide MFA?
Cisco Duo
Duo integrates with ASAv for MFA via RADIUS or other methods.
Cisco Umbrella
Why wrong: Umbrella does not provide MFA.
Cisco ISE
Why wrong: ISE provides authentication but not native MFA; requires additional integration.
Cisco Cloudlock
Why wrong: Cloudlock is a CASB, not MFA.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Cisco Duo
Cisco Duo is the correct solution because it is a cloud-based MFA platform that integrates directly with the Cisco ASAv via the AnyConnect VPN client or the ASA's authentication proxy. Duo acts as a RADIUS or LDAP proxy, intercepting authentication requests and prompting users for a second factor (e.g., push notification, OTP) after primary credentials are validated. This provides the required multi-factor authentication for remote access VPN users without requiring additional on-premises infrastructure.
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.
Common exam traps
The trap here is that candidates often confuse Cisco ISE's ability to enforce MFA policies with it being a native MFA provider, when in fact ISE requires an external MFA solution like Duo to actually generate and validate second-factor tokens.
Detailed technical explanation
Duo integrates with the ASAv by acting as a RADIUS server; the ASAv is configured to send authentication requests to Duo's cloud-hosted RADIUS proxy, which then validates primary credentials against an LDAP directory (e.g., Active Directory) and triggers the second factor via Duo's mobile app or hardware token. This setup uses the RADIUS protocol (RFC 2865) and supports AnyConnect EAP or web-based authentication flows. In real-world deployments, Duo can also be configured with a local proxy (Duo Authentication Proxy) to handle on-premises LDAP or RADIUS traffic when cloud direct connectivity is restricted.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Cloud Security — This question tests Cloud Security — Read the scenario before looking for a memorised answer..
The correct answer is: Cisco Duo — Cisco Duo is the correct solution because it is a cloud-based MFA platform that integrates directly with the Cisco ASAv via the AnyConnect VPN client or the ASA's authentication proxy. Duo acts as a RADIUS or LDAP proxy, intercepting authentication requests and prompting users for a second factor (e.g., push notification, OTP) after primary credentials are validated. This provides the required multi-factor authentication for remote access VPN users without requiring additional on-premises infrastructure.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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