Practice Free JN0-253 Exam Online Questions
How are Service-level expectations (SLEs) defined in Juniper Mist Monitoring and Analytics?
- A . Based on user feedback.
- B . Based on industry best practices.
- C . Based on network performance benchmarks.
- D . Based on security considerations.
At which two levels can labels be created? (Choose two.)
- A . Organization-level
- B . Switch level
- C . Site-level
- D . Access Point level
What is the purpose of policies in Juniper Mist?
- A . To manage user authentication
- B . To manage device connections
- C . To manage network configurations
- D . To manage device labels
What are two requirements for a WebSocket call? (Choose two.)
- A . WebSocket configuration
- B . WebSocket connection URL
- C . authentication token
- D . encryption token
A B
Explanation:
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.
Reference: Juniper Networks Documentation: Mist Cloud Communication
Felicia is the network administrator for a Windows Server network. There are several junior network administrators employed. Felicia suspects that changes have bee made to the security settings on several servers. There is a standard security template with which all new servers are configured.
What tool can Felicia use to verify the current security settings against those within the original template?
Select the best answer.
- A . Active Directory Users and Computers
- B . System Monitor
- C . Security Templates
- D . IP Security Monitor
- E . Security Configuration and Analysis
The signal strength between an AP and a given client is weak and nearly unusable.
In this scenario, which statement is correct?
- A . The AP will move the connection from 2.4 GHz to 5 GHz.
- B . The client and the access point shift to slower data rates.
- C . The AP will move that specific client connection to a clearer channel.
- D . The RADIUS server will send a Change of Authorization (COA) to the client.
An organization administrator, what are two ways to configure additional layers of security for administrator logins? (Choose two.)
- A . Disable a password policy.
- B . Enable two-factor authentication.
- C . Enable a password policy.
- D . Increase session timeouts.
B C
Explanation:
Enable Two-Factor Authentication (2FA): Adding 2FA to administrator logins significantly enhances security by requiring a second form of verification in addition to the password, making unauthorized access more difficult.
Enable a Password Policy: Implementing a strong password policy ensures that passwords meet certain complexity and length requirements, reducing the risk of brute force attacks.
Reference: Juniper Networks Documentation
Which statement Is correct about the SLE dashboard?
- A . SLEs are displayed as a percentag e of success and classifiers are displayed as a percentage of failure.
- B . SLEs are displayed as a percentage of failure and classifiers are displayed as a percentage of success.
- C . Both SLEs and classifiers are displayed as a percentage of success.
- D . Both SLEs and classifiers are displayed as a percentage of failure.
C
Explanation:
Service Level Expectations (SLEs): In Mist’s SLE dashboard, SLEs are shown as a percentage of success. This indicates how well the network is meeting the predefined performance metrics, such as throughput, capacity, and coverage (CertsHero).
Classifiers: Classifiers, which help in diagnosing issues by breaking down SLEs into specific causes, are also displayed as a percentage of success. This unified view aids in quickly identifying areas that need improvement and ensures consistent monitoring (CertsHero).
Reference: Juniper Networks Documentation
What is the process of claiming and onboarding devices in Juniper Mist?
- A . Connecting devices to the network and configuring settings
- B . Scanning device QR codes and claiming ownership in the Juniper Mist cloud
- C . Registering devices with the Juniper Mist cloud and configuring settings
- D . None of the above
Which of the following is a function of Mist AI accounts?
- A . Creation of VLANs
- B . Monitoring of network traffic
- C . Creation and management of user accounts
- D . Configuration of firewall rules