[2026] Pass Juniper JN0-460 Test Practice Test Questions Exam Dumps
Verified JN0-460 dumps Q&As - JN0-460 dumps with Correct Answers
Juniper JN0-460 Exam Syllabus Topics:
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NEW QUESTION # 51
What is a limitation of Layer 2 network segmentation?
- A. Layer 2 cannot span multiple geographical locations.
- B. There is loop protection.
- C. There is no support for networks larger than a /24 network.
- D. There is support for only 4094 VLANs.
Answer: D
Explanation:
According to Juniper Networks technical documentation regarding "Bridging and VLANs," Layer 2 network segmentation is primarily achieved through the implementation of Virtual Local Area Networks (VLANs).
While VLANs provide critical segmentation services by grouping related devices into independent logical networks and containing broadcasts within specific domains, they are bound by the architectural constraints of the IEEE 802.1Q standard.
A fundamental limitation of this traditional Layer 2 approach is the address space of the VLAN identifier. The
802.1Q header allocates exactly 12 bits for the VLAN ID (VID). This mathematical constraint limits the total number of possible VLANs to 4,096 ($2^{12}$). Within the Junos operating system, VLAN IDs 0 and 4,095 are strictly reserved for system internal functions and cannot be assigned to user traffic, resulting in a maximum of 4,094 usable VLANs for network segmentation.
In modern enterprise environments-especially those involving large-scale multitenancy, cloud services, or high-density campus deployments-this 4,094 limit often becomes a significant bottleneck. Network administrators can exhaust this pool when attempting to provide granular isolation for thousands of unique device types, departments, and guest users. To overcome this specific limitation, Juniper recommends moving toward EVPN-VXLAN campus fabrics. VXLAN technology replaces the 12-bit VLAN tag with a 24-bit VXLAN Network Identifier (VNI), which theoretically supports over 16 million unique segments. This vast increase in scalability allows for the creation of administrative domains that far exceed the capabilities of traditional Layer 2 Ethernet bridging. While Layer 2 domains also face challenges related to Spanning Tree Protocol (STP) complexity and large broadcast diameters, the numeric exhaustion of the VLAN ID space remains the most definitive hardware-level limitation of standard Layer 2 segmentation.
NEW QUESTION # 52
Which two events are displayed under theClient Eventsarea found on theInsightspage? (Choose two.)
- A. Restart by User
- B. DHCP Denied
- C. Reassociation
- D. Reflection (Loop Detection)
Answer: B,C
Explanation:
Within Mist Insights,Client Eventsshow state transitions such asreassociationand IP-level issues likeDHCP Denied.
These help correlate connectivity issues across wired or wireless edge connections.
References:
Mist AI Insights Dashboard Guide
Mist AI for Wired - Client Event Monitoring
NEW QUESTION # 53
Which provisioning option is typically used for scaling network configurations across multiple sites?
- A. Direct configuration through physical console ports
- B. Centralized cloud-based management
- C. Manual configuration at each site
- D. Peer-to-peer network setup
Answer: B
NEW QUESTION # 54
In a Campus Fabric setup, micro-segmentation helps to __________.
- A. Isolate workloads
- B. Reduce security
- C. Increase broad network access
- D. Simplify network design
Answer: A
NEW QUESTION # 55
What advantages do configuration options in wired assurance provide to network administrators?
- A. Customizable user access levels
- B. Automated device updates
- C. Flexible network topology changes
- D. Enhanced network performance monitoring
- E. Improved security protocols
Answer: A,C,D,E
NEW QUESTION # 56
What are three ways that data is collected from the Mist backend?(Choose three.)
- A. WebSocket
- B. RESTful API
- C. Webhook
- D. SNMP
- E. Syslog
Answer: A,B,C
Explanation:
Juniper Mist uses open, cloud-native APIs to providereal-time telemetry and integration.
Data is collected and streamed from the backend using:
RESTful APIs- for configuration, automation, and reporting.
Webhooks- to push events, alerts, or SLE changes to third-party systems.
References:Juniper Mist API and Webhook Integration Guide
NEW QUESTION # 57
Where should you activate and manage your Mist subscriptions?
- A. At the organization-level
- B. At the site-level
- C. At the template-level
- D. At the device-level
Answer: A
NEW QUESTION # 58
Scaling requirements for Campus Fabric Architectures must consider __________ to ensure network efficiency and reliability.
- A. Past performance
- B. Cable lengths
- C. Future growth
- D. Color schemes
Answer: C
NEW QUESTION # 59
In the context of deploying wired assurance, which of the following are considered supported architectures?
- A. Hybrid cloud environments
- B. Cloud-managed networks
- C. Virtual private networks (VPNs)
- D. On-premises data centers
- E. Peer-to-peer networks
Answer: A,B,D
NEW QUESTION # 60
You are asked to forward event messages from Mist to an external log collector.
In this scenario, which feature would enable this capability?
- A. syslog
- B. webhooks
- C. NETCONF
- D. SNMP traps
Answer: A
Explanation:
In Juniper Mist, thesyslogfeature allows administrators to forward event messages and alerts from the Mist cloud to an external syslog server.
This is often used for centralized event monitoring, compliance, and correlation with tools like Splunk or SIEM systems.
Syslog operates over UDP or TCP and can capture switch events, system logs, and Marvis actions for both Wired and Wireless networks.
References:Juniper Mist Documentation - Syslog Integration for Wired Assurance
NEW QUESTION # 61
What are three requirements for using ZTP during a Mist AI greenfield provisioning? (Choose three.)
- A. DHCP server
- B. SNMP server
- C. Junos Space
- D. Internet access
- E. Claim code
Answer: A,D,E
NEW QUESTION # 62
How many days of data does the Mist cloud service store?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 63
Which service level expectation (SLE) metric measures congestion on the uplink interface of a switch?
- A. Asymmetric Uplink
- B. Switch Health
- C. Successful Connect
- D. Throughput
Answer: D
Explanation:
According to Juniper Mist documentation, the Throughput Service Level Expectation (SLE) is the primary metric used to represent the ability of wired users to pass traffic across the network without impedance. This SLE provides a comprehensive oversight of network performance by identifying issues that degrade the user experience, such as storm control events, interface anomalies, and specifically uplink congestion.
Within the Throughput SLE, the Congestion classifier (also referred to as Congestion Uplink) is specifically designed to monitor for buffer saturation and packet drops (TxDrops). When traffic arriving at an interface exceeds its processing or forwarding capacity, packets are queued in a buffer; if this buffer becomes full, the switch begins dropping packets. Juniper Mist utilizes a specific formula considering the ratios of TxDrops to TxPackets, Transmitted bps to Link Speed, and Received Speed to Link Speed to determine if a "Bad User Minute" has occurred due to congestion.
A critical feature of Wired Assurance is the automatic identification of uplink interfaces. Mist identifies these high-capacity ports by analyzing switch telemetry for characteristics such as having a switch or router as an LLDP neighbor, being designated as a Spanning Tree Protocol (STP) root port, or exhibiting significantly higher packet counts compared to access ports. When congestion is detected on an interface identified as an uplink, the system recognizes that this bottleneck impacts every user on that switch. By correlating these drops with the Throughput SLE, network administrators can proactively identify when a site requires more bandwidth or a different fabric architecture to handle current traffic demands, rather than simply monitoring if the link is physically "up" or "down".
NEW QUESTION # 64
Which component performsVXLAN encapsulation and de-encapsulation?
- A. VTEP
- B. WXLAN policy
- C. root bridge
- D. VLAN
Answer: A
Explanation:
In anEVPN-VXLANarchitecture, theVXLAN Tunnel Endpoint (VTEP)is responsible for encapsulating and de-encapsulating Layer 2 Ethernet frames into VXLAN packets that traverse the IP underlay.
"Each device participating in a VXLAN overlay operates as a VXLAN Tunnel Endpoint (VTEP). The VTEP encapsulates Ethernet frames into VXLAN headers for transmission and de-encapsulates VXLAN packets back into Ethernet frames upon receipt." Option A:Incorrect - VLAN is a Layer 2 construct, not responsible for encapsulation.
Option B:Correct- VTEP handles VXLAN encapsulation and de-encapsulation.
Option C:Incorrect - root bridge pertains to STP, not VXLAN.
Option D:Incorrect - WXLAN policy is not a valid networking term in Juniper documentation.
References:
Juniper Mist AI for Wired - EVPN-VXLAN Overview
Junos OS EVPN-VXLAN Deployment Guide
Juniper Validated Design - VXLAN Tunnel Endpoint (VTEP) Functionality
NEW QUESTION # 65
What is a distinctive feature of Wired Assurance?
- A. Customizable exterior device lighting.
- B. Unlimited data storage for personal use.
- C. Real-time analytics and reporting.
- D. Peer-to-peer file sharing capabilities.
Answer: C
NEW QUESTION # 66
Which two Marvis Wired Assurance actions require a Juniper switch?(Choose two.)
- A. EAP/802.1X failure
- B. negotiation mismatch
- C. bad cable
- D. missing VLAN
Answer: B,C
Explanation:
Marvis, the AI-driven virtual network assistant in Mist, provides real-time troubleshooting insights for both wired and wireless devices.
When used withWired Assurance, certain actions require Juniper EX or QFX switches for telemetry collection.
Two of these wired-specific actions are:
Bad Cable Detection- triggered when electrical faults or poor cable quality are observed through LLDP or physical diagnostics.
References:Juniper Mist Marvis Wired Assurance Overview
NEW QUESTION # 67
Which of the following are functions of EVPN in a Campus EVPN-VXLAN deployment? (Select two)
- A. Provides a control plane for MAC address learning
- B. Reduces the efficiency of data plane operations
- C. Limits the number of broadcast domains
- D. Facilitates multipath forwarding
Answer: A,D
NEW QUESTION # 68
Route distinguishers and route targets in EVPN are used for:
- A. Simplifying network configurations
- B. Identifying Ethernet segments only
- C. Decreasing network performance
- D. Differentiating between routes in overlapping IP spaces and defining VPN membership
Answer: D
NEW QUESTION # 69
Which campus fabric architecture extends from the core tier to the access tier?
- A. campus fabric IP Clos
- B. campus fabric core-distribution - centrally-routed bridging (CRB)
- C. campus fabric core-distribution - edge-routed bridging (ERB)
- D. EVPN multihoming
Answer: A
Explanation:
According to Juniper Mist documentation regarding campus fabric design, the campus fabric IP Clos (also known as a 5-stage Clos) is the architecture that extends the EVPN-VXLAN protocol stack from the core tier down through the distribution tier and finally to the access tier. In this model, every switch in the hierarchy- from the high-capacity core switches to the wiring closet access switches-participates in the EVPN control plane and VXLAN data plane.
By extending EVPN-VXLAN to the access tier, the IP Clos architecture provides a standards-based, scalable framework that allows for seamless Layer 2 connectivity over a Layer 3 underlay across the entire campus333333333. This enables advanced features like Microsegmentation using Group-Based Policies (GBP) and Macrosegmentation via Virtual Routing and Forwarding (VRF) instances directly at the edge of the network.
In contrast, other architectures like "core-distribution" (either CRB or ERB) typically limit the EVPN- VXLAN fabric to the core and distribution layers, leaving the access tier to connect via traditional methods like LAG, Virtual Chassis, or standard Layer 2 trunks5555. The IP Clos architecture is specifically designed for large-scale deployments where high density, vendor interoperability, and end-to-end policy enforcement are critical6. By utilizing a 5-stage IP Clos, organizations can eliminate the complexities of Spanning Tree Protocol (STP) while maintaining a flexible, "any-to-any" communication path throughout the physical infrastructure.
NEW QUESTION # 70
Which two statements are correct aboutJuniper Mist Dynamic Packet Capture? (Choose two.)
- A. It must be globally configured at the organization level.
- B. It is automatically attached to the Affected Items list in the Successful Connects SLE.
- C. It is automatically attached to a client event displayed on the Insights page.
- D. No configuration is necessary for Mist's Dynamic Packet Capture.
Answer: C,D
Explanation:
Dynamic Packet Capture (DPC)requires no manual setup.
It is automatically linked to relevantclient eventson theInsights page, enabling fast root-cause analysis without extra configuration.
References:
Mist AI for Wired - Dynamic Packet Capture Overview
Mist Insights and Troubleshooting Guide
NEW QUESTION # 71
Which of the following are key components in the provisioning process for wired assurance?
- A. Templates
- B. Site variables
- C. Physical hardware installation
- D. Configuration options
- E. End-user training
Answer: A,B,D
NEW QUESTION # 72
Which subscription is required to use Marvis?
- A. Access Assurance
- B. IoT Assurance
- C. Virtual Network Assistant
- D. Wired Assurance
Answer: C
Explanation:
Marvis is Juniper's Virtual Network Assistant (VNA) that leverages AI to provide natural language queries, anomaly detection, and proactive troubleshooting across wireless, wired, and WAN networks.
"Marvis, the AI-driven Virtual Network Assistant, requires a Virtual Network Assistant subscription. The subscription enables Marvis to provide insights, recommendations, and natural language queries for Mist- managed networks." Option A (Access Assurance) is related to NAC/802.1X enforcement.
Option B (IoT Assurance) applies to profiling and securing IoT devices.
Option D (Wired Assurance) enables switch telemetry, onboarding, and assurance, but does not unlock Marvis.
Option C (Virtual Network Assistant) is correct - this subscription is required to enable Marvis AI.
References:
Juniper Mist Subscriptions Guide
Juniper Mist AI for Wired - Marvis Virtual Network Assistant Overview
Juniper Licensing and Subscription Matrix
NEW QUESTION # 73
Referring to the exhibit, which statement is correct about thePost-Install user's role?
- A. It is used for help-desk monitoring and workflow for all sites.
- B. It has access limited to installing APs and switches at all sites.
- C. It has read-only access to all sites.
- D. It has full access to all sites.
Answer: B
Explanation:
ThePost-Install (Installer)role has minimal access-sufficient only toclaim APs or switches, assign or unassign them, and place them on maps.
It cannot unclaim or remove devices and typically expires after installation.
References:
Mist AI Mobile App Documentation - Installer and Post-Install Roles
Juniper Mist AI Access Control Guide
NEW QUESTION # 74
What is required when creating a Mist Account?
- A. An invitation
- B. A valid e-mail address
- C. An API token
- D. A Juniper device
Answer: B
NEW QUESTION # 75
You are asked to apply the samesystem-level configurationacross all the devices in multiple sites usingMist AI.
According to Juniper Networks, which solution should you use in this scenario?
- A. Use the site-level switch configuration option in Mist AI.
- B. Use the individual switch configuration option in Mist AI.
- C. Use the CLI on each device.
- D. Use an organization-level template in Mist AI.
Answer: D
Explanation:
Juniper Mist supports ahierarchical configuration model:
Organization level:global configuration templates applied across sites.
Site level:shared configuration for all devices in a site.
Individual device level:unique overrides.
To applycommon system-level settings(e.g., NTP, SNMP, DNS, syslog) across multiple sites, the correct method is to use anorganization-level template.
"Organization-level templates provide a consistent configuration framework that can be applied across multiple sites, ensuring uniform system settings for all switches." Option A:Incorrect - manual CLI configuration defeats automation.
Option B:Incorrect - applies only to one site, not multiple.
Option C:Correct- organization-level templates provide centralized configuration for all sites.
Option D:Incorrect - individual configuration is for unique settings only.
References:
Juniper Mist AI for Wired - Configuration Hierarchy and Templates
Juniper Mist AI for Wired - Multi-Site Configuration Guide
Juniper Mist AI Cloud - Organization and Site Management
NEW QUESTION # 76
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The Best JNCIS-MistAI-Wired Study Guide for the JN0-460 Exam: https://drive.google.com/open?id=1lEURPf5roOc9uF5K0J_ej-oCi-0VF_mG
