Juniper JN0-251 Exam Questions

The correct answer is B. Eighty percent of the Time to Connect failures are related to DHCP failures. This is what you can determine about the site's Time to Connect SLE metric from the exhibit. The exhibit shows a root cause analysis chart that displays the Service Level Metrics and the Classifiers for the site. The Service Level Metrics section shows the percentage of time to connect, which is the time it takes for a client device to connect to the wireless network. The Classifiers section shows the percentage of authorization, association, internet services, and DHCP, which are the steps involved in the connection process. The blue line connects the two sections and shows the correlation between them.

The exhibit shows that the site has a Time to Connect SLE metric of 20%, which means that only 20% of the client devices were able to connect to the wireless network within the expected time. The exhibit also shows that 80% of the Time to Connect failures are related to DHCP failures, which means that 80% of the client devices were not able to obtain an IP address from the DHCP server. This indicates that there is a problem with the DHCP service or configuration at the site.

According to the web search results, Mist cloud supports single sign-on (SSO) in two scenarios: Wi-Fi guest login access and admin login to the Mist portal.SSO is a feature that allows users to log in to multiple applications or services with one set of credentials, without having to enter them repeatedly1.SSO can provide convenience, security, and efficiency for users and administrators1.

Wi-Fi guest login access is a scenario where users can access the Wi-Fi network as guests using their existing social media or email accounts, such as Facebook, Google, or LinkedIn2.Mist cloud supports SSO for Wi-Fi guest login access by integrating with various identity providers (IdPs), such as Azure AD, Okta, Ping Identity, or OneLogin2.Mist cloud can also use webhooks to send guest login data to third-party applications or services, such as Slack, Splunk, or ServiceNow2.

Admin login to the Mist portal is a scenario where administrators can access the Mist dashboard using their existing corporate accounts, such as Office 365, G Suite, or Active Directory3.Mist cloud supports SSO for admin login to the Mist portal by integrating with various IdPs, such as Azure AD, Okta, Ping Identity, or OneLogin3.Mist cloud can also use the REST API to automate and customize the admin login process3.

Alert templates are assigned to sites in theSite Grouparea of the Mist GUI. A site group is a logical grouping of sites that share common settings and policies, such as alert templates, WLAN profiles, switch profiles, and site tags. A site group can contain one or more sites, and a site can belong to one or more site groups.

To assign an alert template to a site group, you need to navigate to Organization > Site Groups and select the site group that you want to edit. Then, you need to click on the Alert Template tab and choose the alert template that you want to apply to the site group. You can also create a new alert template or edit an existing one from this tab.

An alert template is a configuration that defines the types of alerts that you want to monitor and receive notifications for on your network. Alerts are events that indicate ongoing network and device issues, such as device offline, AP reboot, PSK failure, rogue AP, etc. You can create and manage alert templates in the Monitor > Alerts > Alert Configuration area of the Mist GUI.

This is the earliest opportunity to configure an access point (AP) in the Juniper Mist cloud.According to the Juniper Mist documentation1, the steps to configure an AP are as follows:

Claim the AP to inventory: This step involves entering the serial number or MAC address of the AP in the Juniper Mist cloud portal, which will add the AP to the inventory and assign it a subscription.

Assign the AP to a site: This step involves selecting a site from the inventory and dragging and dropping the AP to the site. This will apply the site-level settings and policies to the AP.

Configure the AP settings: This step involves editing the AP settings, such as name, location, labels, templates, and radio profiles. This can be done individually or in bulk for multiple APs.

A Mist Coverage SLE is based upon a summary of user minutes. A user minute is defined as one minute of active client connection to the wireless network. A Mist Coverage SLE tracks the number of user minutes that a client's received signal strength indicator (RSSI) as measured by the access point is below the threshold configured by the network administrator. The RSSI is a measure of how well a client can hear the access point's signal. A low RSSI indicates poor coverage and can result in low throughput, high latency, or dropped connections.

The Mist Coverage SLE allows the network administrator to monitor and troubleshoot the coverage issues on the wireless network. The Mist Coverage SLE also provides classifiers that identify the root causes of poor coverage, such as asymmetry, interference, or low transmit power. The network administrator can use the Mist portal, the Marvis virtual network assistant, or the Mist API to view and manage the Mist Coverage SLE.