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Question 1

Score: 0/0

In Mist's WLAN template, which security type should you select to support a Pre-Shared Key (PSK) network where all clients share the same passphrase?

WPA2-PSK

WPA3-SAE

PPSK

802.1X/EAP-TLS

to track

2026 Statistics

Key Facts: JNCIS-MistAI-Wireless Exam

60-70%

Est. Pass Rate

Industry estimate

65 Q's

Exam Questions

Juniper

90 min

Exam Duration

Juniper

$300

Exam Fee

Juniper

3 years

Cert Valid

Juniper

80-120 hrs

Study Time

Recommended

JNCIS-MistAI-Wireless is Juniper's specialist certification for Mist AI wireless networking. The exam covers 65 questions in 90 minutes. Topics include WLAN templates, WxLAN policies, SLE analytics, Marvis actions, Wi-Fi 6E/7, and Mist Access Assurance. JNCIA-Junos is a recommended prerequisite. Certification is valid for 3 years.

Sample JNCIS-MistAI-Wireless Practice Questions

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1In Mist's WLAN template, which security type should you select to support a Pre-Shared Key (PSK) network where all clients share the same passphrase?

A.WPA2-PSK

B.WPA3-SAE

C.PPSK

D.802.1X/EAP-TLS

Explanation: WPA2-PSK uses a single shared passphrase for all clients connecting to that WLAN. PPSK (Private Pre-Shared Key) assigns unique passphrases per client/group, 802.1X/EAP-TLS uses certificate-based authentication, and WPA3-SAE is the successor to WPA2-PSK with improved security. For a simple shared-password deployment, WPA2-PSK is the correct choice.

2When configuring 802.1X/EAP-TLS authentication in a Mist WLAN template, which server handles the authentication of client certificates?

A.RADIUS server

B.LDAP server

C.DHCP server

D.Mist Edge

Explanation: EAP-TLS uses a RADIUS server as the Authentication, Authorization, and Accounting (AAA) server. The RADIUS server validates the client's certificate against a configured Certificate Authority (CA). LDAP can be used for user lookups, DHCP assigns IP addresses, and Mist Edge handles tunneled traffic — none replace the RADIUS role in 802.1X.

3What is the primary advantage of using PPSK (Private Pre-Shared Key) over a single WPA2-PSK passphrase?

A.Each device or group gets a unique key, enabling per-device revocation

B.PPSK provides stronger encryption than WPA2-PSK

C.PPSK does not require a RADIUS server

D.PPSK is the only option compatible with IoT devices

Explanation: PPSK assigns a unique passphrase to each device or group of devices. This means you can revoke a single device's access without changing the passphrase for all other devices, unlike a single WPA2-PSK. PPSK uses the same WPA2 encryption — the difference is in key management, not cipher strength. PPSK in Mist does not require RADIUS; keys are managed in the Mist cloud.

4In a Mist WLAN template with a passphrase pool configured, what happens when a client connects with a passphrase from the pool?

A.The client is placed in the VLAN associated with that specific passphrase

B.All clients share the same VLAN regardless of passphrase

C.The client is prompted to re-enter credentials via a captive portal

D.The AP rejects clients not in the RADIUS database

Explanation: In a passphrase pool, each passphrase entry can be associated with a specific VLAN, role, or expiry. When a client connects using a passphrase from the pool, Mist places the client into the VLAN mapped to that passphrase. This enables VLAN segmentation without 802.1X infrastructure, ideal for multi-tenant or IoT deployments.

5Which tunneling option in a Mist WLAN template routes client traffic from APs to an on-premises gateway rather than bridging locally?

A.Tunneled with Mist Edge

B.Split tunneling

C.Layer 3 roaming

D.WxLAN micro-segmentation

Explanation: The 'Tunneled with Mist Edge' option in a WLAN template encapsulates client traffic in a CAPWAP or IP-in-IP tunnel from the AP to an on-premises Mist Edge appliance. This is used for centralized traffic inspection, data center breakout, or corporate security policy enforcement. Split tunneling, Layer 3 roaming, and WxLAN are different features.

6What does OKC (Opportunistic Key Caching) enable in a Mist wireless deployment?

A.Clients reuse previously derived PMK to roam without full 802.1X re-authentication

B.Clients cache RADIUS credentials locally for offline authentication

C.APs share encryption keys over the Mist cloud for seamless handoff

D.OKC replaces 802.11r fast BSS transition on Mist APs

Explanation: OKC (Opportunistic Key Caching), also known as proactive key caching (PKC), allows a client to reuse a previously derived Pairwise Master Key (PMK) when roaming to a new AP. This avoids the full 802.1X EAP exchange on every roam, reducing reconnect time. OKC requires PMK caching support on both the client and AP.

7In Mist WLAN templates, what is 802.11r primarily used for?

A.Fast BSS Transition to reduce authentication latency during roaming

B.Increasing channel bandwidth to 320 MHz

C.Enabling 6 GHz band operation on APs

D.Assigning unique PSK keys to clients

Explanation: 802.11r (Fast BSS Transition, FT) preemptively caches key material on neighboring APs so that when a client roams, the 4-way handshake is reduced from multiple round trips to one. This dramatically lowers latency during roaming, which is critical for voice and real-time applications. It is independent of channel bandwidth or band selection.

8In Mist's WxLAN policy engine, what is a 'user role' used for?

A.To define access permissions and traffic policies applied to a group of clients

B.To assign a specific VLAN to an AP radio

C.To configure the RF channel selection algorithm

D.To specify the RADIUS server group for 802.1X

Explanation: A WxLAN user role defines the set of access rules (allow/deny) applied to clients assigned to that role. Roles can be assigned statically, from RADIUS attributes, or from Mist's identity engine. This enables micro-segmentation without per-VLAN ACLs, as policies follow the user regardless of where they connect.

9Which WxLAN feature allows an administrator to tag specific application traffic for QoS or access control without relying on VLANs?

A.WxLAN Tag

B.WxLAN Zone

C.WxLAN PSK

D.WxLAN Beacon

Explanation: WxLAN Tags allow operators to classify traffic by application, subnet, or protocol and then apply policies (QoS marking, rate limiting, allow/deny) based on those tags. This achieves micro-segmentation at the application layer without requiring per-application VLANs.

10How does WxLAN micro-segmentation differ from traditional VLAN-based segmentation?

A.WxLAN policies follow the user/device identity and apply at the AP, eliminating the need for VLAN proliferation

B.WxLAN uses 802.1Q tags but applies them dynamically per frame

C.WxLAN only works on the 6 GHz band

D.WxLAN requires a separate physical controller to enforce policies

Explanation: Traditional VLAN segmentation requires network-wide VLAN provisioning and ACLs at switches. WxLAN enforces access policies at the AP based on user identity or role, meaning policy travels with the user. This reduces the number of VLANs needed and allows security to be defined in the Mist cloud rather than per-switch.

About the JNCIS-MistAI-Wireless Exam

JNCIS-MistAI-Wireless validates specialist-level knowledge of Juniper Mist AI for wireless networking, covering WLAN templates (PSK, 802.1X/EAP-TLS, PPSK), WxLAN micro-segmentation, RRM with RxSOP, Wi-Fi 6E/7 (6 GHz, PSC, 320 MHz), SLE analytics, Marvis AI actions, guest portals, and location services.

Questions

65 scored questions

Time Limit

90 minutes

Passing Score

Pass/Fail

Exam Fee

$300 (Juniper Networks / Pearson VUE)

JNCIS-MistAI-Wireless Exam Content Outline

25%

WLAN Templates & Security

PSK, PPSK, passphrase pools, 802.1X/EAP-TLS, OKC, 802.11r, Mist Edge tunneling

20%

SLE Analytics

Time to Connect, Roaming, Capacity, Throughput, Successful Connects — per-network, per-AP, per-client

20%

Marvis AI Actions

Bad cable, missing VLAN, AP offline, DHCP/DNS failure, authentication failure, conversational interface

15%

RRM & Wi-Fi 6E/7

RxSOP, dual-5 GHz, BLE radio virtualization, 6 GHz PSC, 320 MHz, MLO, BSS Coloring

20%

WxLAN, Guest, Location & Access Assurance

WxLAN user roles, micro-segmentation, captive portals, social login, BLE location, Mist Access Assurance EAP-TLS

How to Pass the JNCIS-MistAI-Wireless Exam

What You Need to Know

Passing score: Pass/Fail
Exam length: 65 questions
Time limit: 90 minutes
Exam fee: $300

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

JNCIS-MistAI-Wireless Study Tips from Top Performers

1Master the SLE framework — understand what each SLE (Time to Connect, Roaming, Capacity, Throughput, Successful Connects) measures and its root-cause classifiers

2Know the difference between PPSK and standard PSK — PPSK provides per-device unique keys without RADIUS; passphrase pools add per-key VLAN assignment

3Understand Marvis actions by layer: Bad cable (L1), Missing VLAN (L2), DHCP failure (L3), DNS failure (application), Authentication failure (security)

4Study 6 GHz specifics: PSC channels for client discovery, AFC requirements for standard power APs, and how 320 MHz channels fit in Wi-Fi 7

5Practice the WxLAN policy model — roles can be assigned by SSID, RADIUS attribute, or manual MAC mapping; rules evaluate top-to-bottom first-match

Frequently Asked Questions

What is the JNCIS-MistAI-Wireless exam format?

JNCIS-MistAI-Wireless has 65 multiple-choice and multi-select questions in 90 minutes. The exam is pass/fail — Juniper does not publish the exact passing score. It is delivered at Pearson VUE test centers and online.

What prerequisites are required for JNCIS-MistAI-Wireless?

Juniper recommends holding a current JNCIA-Junos certification before attempting JNCIS-MistAI-Wireless. Practical experience with Mist AI cloud management is also strongly recommended.

What does the Mist AI Wireless certification cover?

The exam covers Mist AI cloud wireless networking: WLAN templates (PSK, PPSK, 802.1X/EAP-TLS), WxLAN micro-segmentation, Radio Resource Management (RRM), Wi-Fi 6E and 7 features, SLE analytics, Marvis AI actions, guest portals, and BLE-based location services.

How does JNCIS-MistAI-Wireless differ from JNCIS-ENT?

JNCIS-ENT covers traditional Junos enterprise routing and switching (OSPF, BGP, VLANs). JNCIS-MistAI-Wireless focuses specifically on Juniper's Mist AI cloud-managed wireless platform, including AI-driven analytics, Marvis, SLE, and Mist-specific WLAN features.