Juniper JN0-451 Practice Test - Questions Answers, Page 2

Regarding roaming, it is ultimately up to the client device to determine when it's time to connect to another AP based on signal strength and other factors such as network congestion or interference. So the correct answer is B. The client device.

RF templates are assigned to sites in Mist configuration objects so that you can apply consistent RF settings across multiple sites in your network with ease. So, RF templates are assigned to D.sites

Mist Radio Resource Management (RRM) performs several functions including transmit power control and channel assignment which help optimize wireless network performance by dynamically adjusting radio settings based on changing environmental conditions.So,the correct answers are

A.transmit power control and C.channel assignment

Syslog is a protocol that can be used to forward event messages from Mist to an external log collector.

Reference: https://www.cnrood.com/en/media/solutions/Wi-Fi_Overview_of_the_802.11_Physical_Layer.pdf

Reference: https://www.juniper.net/documentation/us/en/software/nce/nce-214-midsize-branchmist-pwp/topics/topic-map/nce-214-midsize-branch-mist-example_part2.html

When a Juniper Mist AP is installed and booted up for the first time, it will attempt to connect to the

Mist cloud using port 443 and will send DHCP requests using the native VLAN.

According to Wikipedia1, 802.1X is an IEEE Standard for port-based network access control (PNAC). It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN using

Extensible Authentication Protocol (EAP) over wired IEEE 802 networks and over 802.11 wireless networks, which is known as "EAP over LAN" or EAPOL.

The authentication process involves three parties: a supplicant (the client device), an authenticator (the network device such as an access point), and an authentication server (typically a RADIUS server). The supplicant must provide valid credentials to the authenticator before it can access the network resources.

The credentials are exchanged with a RADIUS server prior to the 4-way Handshake because the 4way Handshake is used to establish encryption keys between the supplicant and authenticator after successful authentication2. The credentials are exchanged with a RADIUS server after the 802.11 Association because the 802.11 Association is used to establish a logical link between the supplicant and authenticator before authentication can take place3.

The AI VALIDATED status update means that the issue was opened and Marvis confirms it has been closed.

The AP Offline Marvis Action will consider all APs assigned to sites that have connected to the cloud previously for inclusion. So the correct answer is A. all APs assigned to sites that have connected to the cloud previously.