Free JN0-452 sample questions

Correct answer: Use a single Configuration Template for the WLANs and assign different RF Profiles to the Device Profiles associated with the specific APs in each building type.

In Juniper Mist, Configuration Templates are best used for shared settings like WLANs and Policies. Device Profiles (or RF templates applied at the device/site level) allow for hardware-specific or environment-specific RF settings (channel width, power) without duplicating the logical network configuration.

Correct answer: The Access Point is seeing the DHCP Discover packet from the client but is not seeing a corresponding Offer from the DHCP server.

In Mist SLE terminology, a 'Stuck' state under the DHCP classifier typically means the transaction is incomplete; specifically, the AP sees the client's Discover/Request but does not see the Server's Offer/Ack. This points to an upstream network issue or server unresponsiveness, rather than a NAK (which would be a negative response).

Correct answer: Use an External Portal integration, redirecting the user to a third-party hosted splash page that handles the video logic and API callback.

While Mist's internal portal provides robust basic features (social login, SMS, email collection), complex workflows like mandatory video completion triggers usually require an External Portal integration. The external server hosts the content and logic, then authenticates the client via Mist API upon completion.

Correct answers: The Mist cloud is built on a microservices architecture, allowing new features to be deployed to the cloud without requiring AP firmware upgrades.; AP firmware updates are handled via a partition-swap mechanism, allowing the AP to revert to the previous version automatically if the new version fails to boot.

Mist's microservices architecture allows the cloud platform to update individual services (like the dashboard, analytics, or RRM algorithms) independently of the AP firmware. This ensures rapid feature velocity without downtime.

Mist APs maintain dual partitions for firmware. When upgrading, the new image is written to the inactive partition. If the boot fails, it can failover to the known good partition, ensuring resilience.

Correct answer: The AP has local power and has booted successfully, but it cannot establish a TCP connection to the Mist Cloud over port 443.

If the AP status is up (booted) but Cloud is red (or blinking in a specific pattern indicating loss), it means the AP cannot reach the Mist cloud controller. This is often due to firewall rules blocking outbound TCP 443 or DNS resolution failures.

Correct answer: Configure a lower Maximum Transmit Power (e.g., 14 dBm) and enable 'Rx SOP' (Receiver Start of Packet detection threshold) to effectively shrink the cell size.

Sticky clients often occur because they still see a 'good enough' signal from a distant AP (especially if APs are running high power). Lowering the max transmit power helps the client realize the signal is degrading sooner. Rx SOP helps the AP ignore weak signals from distant clients, encouraging the client to associate with a closer AP.