JN0-460 Sample Questions & Answers
Managing switches and dynamic port profiles takes the biggest share, ahead of campus fabric architecture and EVPN-VXLAN tunneling, provisioning and deployment choices, and the devices and features Wired Assurance supports.
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- Question 1Beginner
Wired Assurance Fundamentals · Subscriptions
True or False: The Marvis Virtual Network Assistant (VNA) functionality is included by default with the Wired Assurance Standard subscription tier.
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Correct answer: B
Marvis VNA is an optional add-on service. It requires its own subscription (S-VNA) in addition to the base Wired Assurance subscription (Standard, Advanced, or Premium) to function.
- Question 2Beginner
Wired Assurance Fundamentals · Features and components
An organization is deploying Juniper EX Series switches across 50 remote branches. To streamline the deployment, they want to use Zero Touch Provisioning (ZTP). Which firewall port must be open outbound to allow the switches to contact the Juniper Phone Home Server (PHS) and redirect to the Mist Cloud?
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Correct answer: B
Juniper devices use HTTPS (TCP 443) to communicate with the Phone Home Server (PHS) and the Mist Cloud. This port must be allowed outbound for the device to receive its initial configuration and for ongoing management.
- Question 3Intermediate
Wired Assurance Fundamentals · Solutions
A network engineer is explaining the benefits of the Mist Cloud microservices architecture to the CIO. Which key advantage is primarily enabled by this architecture compared to traditional monolithic controller software?
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Correct answer: A
The microservices architecture allows Juniper to update specific components (services) independently. This enables frequent feature updates and bug fixes without requiring a full system reboot or causing maintenance downtime for the entire platform.
- Question 4Intermediate
Wired Assurance Provisioning or Deployment · Provisioning options
A consultant is tasked with onboarding a new EX4400 switch using the "Greenfield" Zero Touch Provisioning (ZTP) method. The switch is racked, powered on, and connected to the internet. What is the correct sequence of steps to successfully claim and provision this device?
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Correct answer: A
The correct ZTP flow involves claiming the device in the Mist portal using its claim code (or activation code) and assigning it to a site. The switch, upon booting with factory defaults, contacts the Juniper Phone Home Server (PHS), which redirects it to the Mist Cloud instance where the configuration is then pushed.
- Question 5Intermediate
Wired Assurance Provisioning or Deployment · Provisioning options
An administrator needs to adopt an existing "Brownfield" EX Series switch into Mist Wired Assurance without losing its current routing and VLAN configuration. Which action ensures the switch is managed by Mist while retaining its operational state?
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Correct answer: A
For Brownfield adoption, the administrator generates adoption CLI commands from the Mist portal. Pasting these into the switch establishes the SSH connection to the cloud. Mist will then ingest the existing configuration (if 'Manage Configuration' is selected) or monitor it, without wiping the device like ZTP would.
- Question 6Intermediate
Wired Assurance Provisioning or Deployment · Configuration options
A network engineer configures a Radius server setting at the Organization level in Mist. However, one specific site requires a different Radius server IP. The engineer configures the new IP in the Site settings. Which configuration will be applied to the switches at that specific site?
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Correct answer: A
Mist configuration follows a specific hierarchy: Switch > Site > Organization. Settings configured at the Site level override those at the Organization level. Therefore, the specific site will use the Radius server IP defined in the Site settings.
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