Free Juniper JN0-252 Exam Actual Questions

The questions for JN0-252 were last updated On Jun 13, 2025

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Question No. 1

AP is connected lo your wired network but Is not claimed to your organization. Which type of AP would be a possible security threat in this scenario?

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Correct Answer: B

Types of APs and Security Threats:

Understanding different types of access points and their potential security threats.

Access Point Types:

Neighbor AP: An access point that belongs to a neighboring network and is not necessarily a security threat.

Rogue AP: An unauthorized access point connected to the wired network, posing a significant security threat.

Spoofed AP: An access point that mimics a legitimate one, but typically does not involve being connected to the network.

Honeypot AP: An access point set up to lure attackers, not necessarily a threat unless used maliciously.

Identifying the Threat:

An AP connected to your wired network but not claimed to your organization is considered a rogue AP and poses a security threat.

Conclusion:

The correct answer is B.


Mist Documentation on Access Point Security: Mist Documentation

Question No. 2

..has reported a network outage. After locating the user, you find that the switch interface facing the user Is down but there Is no alert in the Mist Ul. You want to ensure that in the future, you receive an alert when a switch *face is down. You have already verified that the Critical Switch Port Down alarm is configured and enabled on the Alerts Configuration page.

his scenario, which action in the Mist Ul will satisfy the requirement?

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Correct Answer: B

To ensure that you receive alerts when a switch interface goes down, you need to enable the Up/Down Port Alerts setting for the specific interface.

This setting can be configured by navigating to the switch within the Mist UI and modifying the port configuration. Enabling this setting ensures that any changes in the port status, such as going down, will trigger an alert.

This is critical for proactive network monitoring and to promptly address any connectivity issues.

Reference: Juniper Networks documentation on configuring port alerts within the Mist UI.


Question No. 3

What are two requirements for a WebSocket call? (Choose two.)

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Correct Answer: A, B

Mist Cloud Communication Protocol: The Mist cloud platform uses HTTPS (Hypertext Transfer Protocol Secure) to communicate with connected access points. This ensures that the data sent and received is encrypted and secure, adhering to modern security standards (Juniper Networks) (CertEnsure).

Security and Reliability: Using HTTPS provides a secure channel over which configuration changes, updates, and monitoring data can be safely transmitted between the Mist cloud and the access points. This protocol is widely accepted and trusted for secure communications over the internet.

Incorrect Options:

MQTT: While MQTT is a lightweight messaging protocol often used in IoT, it is not the protocol used by Mist cloud for AP communication.

SSH: Secure Shell (SSH) is primarily used for secure remote command-line access and not for the primary communication between Mist cloud and APs.

PPTP: Point-to-Point Tunneling Protocol (PPTP) is used for implementing VPNs and is not relevant to the communication between Mist cloud and access points.


Juniper Networks Documentation: Mist Cloud Communication

Question No. 4

What does The "Exceeded" status mean for a subscription?

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Correct Answer: C

The 'Exceeded' status for a subscription means that the allowed usage defined within the subscription has been surpassed.

This typically refers to exceeding limits such as the number of devices, data usage, or other metrics specified in the subscription plan.

Exceeding these limits may require action such as upgrading the subscription plan to accommodate the additional usage.

Reference: Juniper Networks documentation on subscription status and management.


Question No. 5

Which protocol does Mist cloud use to send and receive data to connected access points?

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Correct Answer: C

Mist Cloud Communication Protocol: The Mist cloud platform uses HTTPS (Hypertext Transfer Protocol Secure) to communicate with connected access points. This ensures that the data sent and received is encrypted and secure, adhering to modern security standards (Juniper Networks) (CertEnsure).

Security and Reliability: Using HTTPS provides a secure channel over which configuration changes, updates, and monitoring data can be safely transmitted between the Mist cloud and the access points. This protocol is widely accepted and trusted for secure communications over the internet.

Incorrect Options:

MQTT: While MQTT is a lightweight messaging protocol often used in IoT, it is not the protocol used by Mist cloud for AP communication.

SSH: Secure Shell (SSH) is primarily used for secure remote command-line access and not for the primary communication between Mist cloud and APs.

PPTP: Point-to-Point Tunneling Protocol (PPTP) is used for implementing VPNs and is not relevant to the communication between Mist cloud and access points.


Juniper Networks Documentation: Mist Cloud Communication