Practice Free JN0-253 Exam Online Questions
Question #1
Which unit of measurement Is used for capacity, coverage, and throughput SLEs?
- A . throughput In Mbps
- B . percentage of user minutes
- C . signal strength in dBm
- D . percentage of channel utilization
Correct Answer: A
A
Explanation:
For capacity, coverage, and throughput Service Level Expectations (SLEs) in Mist AI, throughput is measured in Mbps. This unit measures the rate at which data is successfully delivered over the wireless network, providing a clear indication of network performance and user experience. Mist AI tracks these metrics to ensure the network meets the required performance standards.
Reference: Wireless Throughput SLE
Service Level Expectations (SLE)
A
Explanation:
For capacity, coverage, and throughput Service Level Expectations (SLEs) in Mist AI, throughput is measured in Mbps. This unit measures the rate at which data is successfully delivered over the wireless network, providing a clear indication of network performance and user experience. Mist AI tracks these metrics to ensure the network meets the required performance standards.
Reference: Wireless Throughput SLE
Service Level Expectations (SLE)
Question #2
Which statement correctly explains what a lock icon displayed on a Marvis Actions category means?
- A . Your user permissions do not allow access to this information
- B . There is no current subscription which allows that functionality
- C . That Marvis Actions category is not yet implemented in the Mist GUI
- D . There are no actions currently active within that category
Correct Answer: B
Question #3
Which Juniper Mist device enables seamless roaming for large campus networks through on-premises tunneling?
- A . Mist Edge
- B . Mist BT11
- C . Mist AP43
- D . Mist AP33
Correct Answer: A
Question #4
What is the minimum administrator role required to invite users as administrators to an organization?
- A . installer
- B . network admin
- C . super user
- D . helpdesk
Correct Answer: C
Question #5
Which two statements are correct when managing switches located in a Mist-managed site? (Choose two.)
- A . The site firewall must allow communications from the switch to Mist.
- B . A switch template must be assigned to the site.
- C . The site must have Mist access points.
- D . The switch must be assigned to the site.
Correct Answer: AD
Question #6
Exhibit.
Which two statements are correct? (Choose two.)
- A . You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
- B . You will need to tog in to Mist every 60 minutes regardless of which organization you are viewing
- C . To stay logged In. you will need to perform an action in Mist every 10 minutes as long as you are viewing this organization.
- D . To stay logged In. you will need to perform an action in Mist every 10 minutes regardless of which organization you are viewing.
Correct Answer: A C
A C
Explanation:
Identify the Statements:
Login frequency and actions needed to stay logged in.
Login Policies:
Users need to log in to Mist every 60 minutes if viewing a specific organization.
To stay logged in, users need to perform an action every 10 minutes within the organization.
Correct Statements:
You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
To stay logged in, you will need to perform an action in Mist every 10 minutes as long as you are
viewing this organization.
Conclusion:
The correct answers are A and C.
Reference: Mist Documentation on Login Policies: Mist Documentation
A C
Explanation:
Identify the Statements:
Login frequency and actions needed to stay logged in.
Login Policies:
Users need to log in to Mist every 60 minutes if viewing a specific organization.
To stay logged in, users need to perform an action every 10 minutes within the organization.
Correct Statements:
You will need to log in to Mist every 60 minutes as long as you are viewing this organization.
To stay logged in, you will need to perform an action in Mist every 10 minutes as long as you are
viewing this organization.
Conclusion:
The correct answers are A and C.
Reference: Mist Documentation on Login Policies: Mist Documentation
Question #7
Click the Exhibit button.
Referring to the exhibit, which Marvis language would you use to query Mist about an issue?
- A . natural language
- B . SQL
- C . Python
- D . query language
Correct Answer: A
Question #8
Which two statements about WLAN templates are correct? (Choose two.)
- A . They can be deployed to the whole organization.
- B . They can be deployed to a certain switch.
- C . They can be deployed to a certain site.
- D . They can be deployed to a policy.
Correct Answer: A C
A C
Explanation:
WLAN Templates Overview: WLAN templates in Mist AI are used to standardize and manage wireless configurations across multiple locations and devices. They help in maintaining consistent wireless settings and policies throughout the network.
Deployment to the Whole Organization: WLAN templates can indeed be deployed at the organization level. This allows the configurations defined in the template to be applied across all sites and access points within the organization. This approach simplifies the management and ensures uniformity across the network (Juniper Networks) (CertEnsure).
Deployment to a Certain Site: WLAN templates can also be applied to specific sites. This is useful for organizations with multiple sites having unique wireless requirements. By applying templates at the site level, administrators can tailor configurations to meet local needs while still maintaining control through central management (CertEnsure).
Incorrect Options:
Deployed to a Switch: WLAN templates are not deployed to individual switches. They are specific to wireless configurations and thus pertain to access points and wireless settings.
Deployed to a Policy: While policies can be part of WLAN configurations, templates themselves are not deployed directly to policies. Policies are typically components within the templates.
Reference: Juniper Networks Documentation: WLAN Templates
A C
Explanation:
WLAN Templates Overview: WLAN templates in Mist AI are used to standardize and manage wireless configurations across multiple locations and devices. They help in maintaining consistent wireless settings and policies throughout the network.
Deployment to the Whole Organization: WLAN templates can indeed be deployed at the organization level. This allows the configurations defined in the template to be applied across all sites and access points within the organization. This approach simplifies the management and ensures uniformity across the network (Juniper Networks) (CertEnsure).
Deployment to a Certain Site: WLAN templates can also be applied to specific sites. This is useful for organizations with multiple sites having unique wireless requirements. By applying templates at the site level, administrators can tailor configurations to meet local needs while still maintaining control through central management (CertEnsure).
Incorrect Options:
Deployed to a Switch: WLAN templates are not deployed to individual switches. They are specific to wireless configurations and thus pertain to access points and wireless settings.
Deployed to a Policy: While policies can be part of WLAN configurations, templates themselves are not deployed directly to policies. Policies are typically components within the templates.
Reference: Juniper Networks Documentation: WLAN Templates
Question #9
Which statement is correct about a WLAN RF medium?
- A . A WLAN RF is a full duplex, contention free medium where each client transmits on a separate channel.
- B . A WLAN RF is a half-duplex, shared medium where 802.11 stations contend with each other for access.
- C . A WLAN RF is a half-duplex, contention-free medium where the access point polls each station in turn.
- D . A WLAN RF is a full-duplex, contention-free medium where 802.11 stations can transmit and receive at the same time.
Correct Answer: B
Question #10
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?
- A . neighbor AP
- B . rogue AP
- C . spoofed AP
- D . honeypot AP
Correct Answer: B
B
Explanation:
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.
Reference: Mist Documentation on Access Point Security: Mist Documentation
B
Explanation:
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.
Reference: Mist Documentation on Access Point Security: Mist Documentation