[Apr 25, 2026] VCETorrent JN0-460 Exam Practice Test Questions (Updated 86 Questions)
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Juniper JN0-460 Exam Syllabus Topics:
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NEW QUESTION # 10
The primary benefit of Campus Fabric Core-Distribution model is:
- A. Scalability and high availability
- B. Reduction in network bandwidth
- C. Increased network latency
- D. Simplified cable management
Answer: A
NEW QUESTION # 11
When do you need to "adopt a switch"?
- A. in a brownfield environment
- B. in a greenfield environment
- C. immediately upon arrival after it ships from the factory
- D. immediately upon arrival after it ships from distribution
Answer: A
Explanation:
According to Juniper Mist documentation, the term "Adopting a Switch" specifically refers to the process of bringing an existing, already-configured switch-often termed a brownfield device-under the management of the Juniper Mist cloud. This is distinct from the "claiming" process, which is reserved for greenfield environments where new, factory-default switches are added using a QR code or activation code.
In a brownfield scenario, the switch is typically already in production or has a pre-existing local configuration that must be preserved or integrated into the Mist AI-driven dashboard. To adopt such a switch, the administrator must manually interact with the switch's Command Line Interface (CLI). The Mist portal provides a unique adoption command-a string of Junos OS configuration-that includes the specific URL for the Mist cloud and the organization's unique registration token. Once this command is pasted into the switch's CLI and committed, the switch initiates an outbound connection to the Mist cloud via TCP port 2200 or 443.
Upon successful connection, the switch's status changes from "Unassigned" to "Connected" in the Mist dashboard. This transition allows the Mist AI engine to begin collecting telemetry, monitoring Service Level Expectations (SLEs), and performing automated troubleshooting. While the adoption process allows for
"monitoring only" mode to avoid disrupting existing services, it is the fundamental first step for transitioning legacy Juniper infrastructure into a modern, cloud-managed Wired Assurance environment. This workflow is essential for organizations looking to leverage Marvis AI and automated operations without having to factory- reset their entire existing network.
NEW QUESTION # 12
You are using the Wired Visibility option as your Wired Assurance solution.
In this scenario, which two statements are correct? (Choose two.)
- A. All devices are configurable using Mist Al.
- B. You must connect a Mist Managed AP to each switch.
- C. You must enable SNMP on all switches.
- D. Third party switches are supported.
Answer: B,D
NEW QUESTION # 13
Which two statements are correct aboutJuniper Mist Dynamic Packet Capture? (Choose two.)
- A. It is automatically attached to a client event displayed on the Insights page.
- B. No configuration is necessary for Mist's Dynamic Packet Capture.
- C. It is automatically attached to the Affected Items list in the Successful Connects SLE.
- D. It must be globally configured at the organization level.
Answer: A,B
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 # 14
What advantages do configuration options in wired assurance provide to network administrators?
- A. Flexible network topology changes
- B. Automated device updates
- C. Improved security protocols
- D. Customizable user access levels
- E. Enhanced network performance monitoring
Answer: A,C,D,E
NEW QUESTION # 15
What information doesMistuse to determine if the port is classified as anuplink?(Choose two.)
- A. if the port has an MTU greater than 1500 configured
- B. if TX and RX are higher than the rest of the ports
- C. if the port is an STP root port
- D. if the port has a description configured
Answer: B,C
Explanation:
Juniper Mist automatically classifies ports to simplify visibility and automation withinWired Assurance. The Mist cloud analyzesport telemetryandlink behaviorto determine port roles, including uplinks.
"Mist uses machine learning and switch telemetry to automatically detect uplinks by analyzing traffic behavior and topology information. Uplink ports typically exhibit higher TX/RX utilization and are identified as spanning-tree root or forwarding ports connecting upstream devices." Option A:Correct - Mist examines traffic statistics. Ports with significantly higher TX/RX utilization relative to others are likely uplinks.
Option B:Incorrect - MTU size is not a classification criterion.
Option C:Correct - Mist usesSTP information(root or designated port status) to identify uplinks.
Option D:Incorrect - port description fields are for administrative purposes only and are not used by Mist analytics.
References:
Juniper Mist AI for Wired - Port Role Classification and Telemetry
Juniper Mist AI for Wired - Automated Uplink Detection and Insights
Juniper Wired Assurance Analytics Guide
NEW QUESTION # 16
Which three sub-classifiers are part of an "Interface Anomalies" classifier? (Choose three.)
- A. MTU Mismatch
- B. Jitter
- C. Latecny
- D. Negotiation Failed
- E. Cable Issues
Answer: A,C,D
NEW QUESTION # 17
You are planning to deploy a new campus fabric. This campus will have a significant amount of east-west traffic. All access switches will only be operating at Layer 2. In this scenario, which architecture should you deploy?
- A. campus fabric core-distribution with centrally-routed bridging (CRB)
- B. campus fabric IP Clos
- C. campus EVPN multihoming
- D. campus fabric core-distribution with edge-routed bridging (ERB)
Answer: D
Explanation:
According to Juniper Networks' validated designs for campus fabrics, the campus fabric core-distribution with edge-routed bridging (ERB) is the optimal architecture when high volumes of east-west traffic are present and access switches are restricted to Layer 2 operations. In an ERB design, the EVPN-VXLAN fabric extends from the core switches to the distribution switches.1 The critical differentiator is the placement of the default gateways (Integrated Routing and Bridging or IRB interfaces). In the ERB model, these gateways are moved from the core to the distribution layer, which effectively acts as the "edge" of the EVPN fabric.
By placing the Layer 3 gateways at the distribution layer, inter-VLAN (east-west) traffic is routed closer to the endpoints.2 This prevents the "hairpinning" effect found in Centrally-Routed Bridging (CRB) architectures, where traffic must travel all the way to the core layer to be routed between subnets before returning down to the distribution and access layers. This reduction in latency and core-link utilization is essential for modern campus environments with high server-to-server or client-to-client traffic patterns.
Furthermore, this architecture specifically accommodates Layer 2 access switches. In the ERB core- distribution model, the access switches are not part of the EVPN-VXLAN overlay; instead, they connect to the distribution tier using standard Link Aggregation Control Protocol (LACP) or ESI-LAG. This allows organizations to leverage existing legacy or lower-tier access switches that do not support advanced VXLAN capabilities while still benefiting from a robust, scalable EVPN-VXLAN fabric at the distribution and core layers.5 In contrast, while the campus fabric IP Clos also excels at handling east-west traffic, it requires the access switches themselves to perform VXLAN encapsulation/decapsulation (acting as VTEPs), which contradicts the requirement for access switches to operate only at Layer 2.
NEW QUESTION # 18
What are two insight categories on the Mist WAN Edge Insights page? (Choose two.)
- A. WAN Link State
- B. WAN Edge Ports
- C. Blocked Applications
- D. Application Policies
Answer: B,D
NEW QUESTION # 19
Which two devices support Group Based policy?
- A. EX4100
- B. EX4400
- C. EX9200
- D. EX4300
Answer: A,B
NEW QUESTION # 20
Click the Exhibit button.
Which campus fabric architecture is shown in the exhibit?
- A. core-distribution - edge-routed bridging (ERB)
- B. 5-stage IP Clos
- C. core-distribution - centrally-routed bridging (CRB)
- D. 3-stage IP Clos
Answer: C
Explanation:
The exhibit shows:
L2 gateways (blue dots)positioned at the distribution layer.
L3 gateways (red dots)positioned at thecore layer.
EVPN/VXLAN providing fabric connectivity between layers.
Access switches forwarding traffic into the fabric without acting as gateways.
This directly maps to thecentrally-routed bridging (CRB)model, where:
Bridging occurs at the access/distribution layer.
Routing (L3 gateway) occurs centrally at the core layer.
"In the core-distribution CRB model, Layer 2 gateways are deployed at the distribution switches, and Layer 3 gateways are deployed centrally at the core switches." Option A (ERB)is incorrect because ERB places the L3 gateway at the edge/access.
Option B (5-stage IP Clos)is incorrect - that topology has a leaf/spine architecture, not core/distribution.
Option C (3-stage IP Clos)is incorrect - that eliminates the distribution layer.
Option D (CRB)is correct, matching the diagram exactly.
References:
Juniper Mist AI for Wired - Campus Fabric Architecture Guide
Juniper Validated Design - Campus Fabric EVPN-VXLAN Deployment Models
Junos OS EVPN Campus Deployment Examples
NEW QUESTION # 21
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 individual switch configuration option in Mist AI.
- B. Use the site-level switch configuration option in Mist AI.
- C. Use an organization-level template in Mist AI.
- D. Use the CLI on each device.
Answer: C
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 # 22
Which two Marvis Wired Assurance actions require a Juniper switch?(Choose two.)
- A. negotiation mismatch
- B. EAP/802.1X failure
- C. bad cable
- D. missing VLAN
Answer: A,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 # 23
Which two fields arerequiredwhen creating anew site? (Choose two.)
- A. location
- B. RF template
- C. site name
- D. time zone
Answer: C,D
Explanation:
Creating a new site requires asite nameandtime zone.
Other parameters (like templates or location data) are optional but recommended for proper reporting.
References:
Mist AI for Wired - Site Creation Workflow
Create a Mist Account and Organization Documentation
NEW QUESTION # 24
In EVPN, what role do Route Targets (RTs) play?
- A. They limit the scalability of EVPN instances
- B. They specify the forwarding paths for multicast traffic
- C. They define the cryptographic standards for the network
- D. They are used to import and export routes within VPNs
Answer: D
NEW QUESTION # 25
Which of the following are components of Wired Assurance solutions?
- A. AI-driven insights
- B. Network switches
- C. Wireless access points
- D. Physical security systems
Answer: A,B
NEW QUESTION # 26
Whichtwo statementsare correct about using theManaged optionas yourJuniper Mist Wired Assurancesolution?(Choose two.)
- A. No subscription is required.
- B. All supported wired devices are fully managed by the Mist AI.
- C. All information in the Mist AI for supported wired devices is read-only.
- D. A subscription is required.
Answer: B,D
Explanation:
When deployingJuniper Mist Wired AssuranceinManaged mode, switches are fully integrated with Mist Cloud for configuration, monitoring, and AI-driven operations. Managed mode providescomplete cloud-based management, meaning Mist AI handles configuration, templates, telemetry, and SLE tracking.
"In Managed mode, the switch configuration is fully managed by Mist Cloud. Administrators configure switches, templates, and policies directly through the Mist dashboard. A valid Wired Assurance subscription is required for Managed mode operation." Option A:Incorrect - the "Monitor Only" mode is read-only, not Managed.
Option B:Correct- Managed mode requires aWired Assurance subscription.
Option C:Incorrect - subscriptions are mandatory for Mist-managed devices.
Option D:Correct- in Managed mode,all supported EX switches are fully managed by Mist AI, including configuration and telemetry.
References:
Juniper Mist AI for Wired - Managed vs. Monitor Mode Overview
Juniper Mist AI for Wired - Licensing and Subscription Guide
Juniper Mist Cloud - Wired Assurance Deployment Models
NEW QUESTION # 27
EVPN multihoming supports __________, allowing multiple connections to be used simultaneously for redundancy and load balancing.
- A. Single active mode
- B. Active-standby mode
- C. All active mode
- D. Passive mode
Answer: C
NEW QUESTION # 28
What role does dynamic port configuration play in service level expectations (SLE)?
- A. It decreases the overall network performance
- B. It has no impact on SLE
- C. It ensures devices meet network performance standards automatically
- D. It increases the need for manual configurations
Answer: C
NEW QUESTION # 29
Which of the following are key components in the provisioning process for wired assurance?
- A. Physical hardware installation
- B. Configuration options
- C. Site variables
- D. End-user training
- E. Templates
Answer: B,C,E
NEW QUESTION # 30
Under which hierarchy level would you create a new site configuration?
- A. access points
- B. clients
- C. organization
- D. location
Answer: D
Explanation:
In Mist,sitesrepresent the physical or logical grouping of devices within an organization.
You create and manage a site configuration under theLocationhierarchy in the Mist UI.
Each site inherits organization-level settings but can override or customize specific configurations such as VLANs, templates, or switch settings.
References:Juniper Mist Cloud Hierarchy and Site Configuration Guide
NEW QUESTION # 31
What are Service Level Expectations (SLEs) used for in Wired Assurance Management?
- A. Documenting employee vacation days
- B. Defining and measuring network performance metrics
- C. Calculating network storage capacity
- D. Setting unrealistic performance targets
Answer: B
NEW QUESTION # 32
Which of the following can be achieved through the use of APIs in Wired Assurance Management?
- A. Automatic ticket generation for network issues
- B. Scheduling system backups
- C. Integration with third-party monitoring tools
- D. Manual log entries for daily attendance
Answer: A,C
NEW QUESTION # 33
How do VXLAN and EVPN work together to support MAC learning in a scalable way?
- A. Using EVPN as a control plane to distribute MAC addresses over VXLAN tunnels
- B. Through dynamic flooding mechanisms in the data plane
- C. By relying exclusively on Layer 3 routing protocols
- D. Implementing static MAC address tables for each VTEP
Answer: A
NEW QUESTION # 34
What is the primary goal of Wired Assurance?
- A. To increase network security protocols.
- B. To reduce network bandwidth.
- C. To offer financial assurance services.
- D. To enhance network visibility and troubleshooting.
Answer: D
NEW QUESTION # 35
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