Juniper JN0-451 JNCIS-MistAI Exam Questions Instant Access

Question 1

According to the 802.11 standard, how wide are 2.4 GHz band OFDM channels?

A5 MHz

B22 MHz

C20 MHz

D3 MHz

Answer : C

According to the 802.11 standard, OFDM channels in the 2.4 GHz band are 20 MHz wide.

According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document2, OFDM channels in the 2.4 GHz band are 20 MHz wide according to the 802.11 standard.

Question 2

Click the Exhibit button.

Referring to the exhibit, which statement is correct about the Post-Install user's role?

AIt is used for help desk monitoring and workflow for all sites.

BIt has access limited to installing APs and switches at all sites.

CIt has read-only access to all sites.

DIt has full access to all sites.

Answer : B

the Post-Install user role is also known as Installer role, which has a minimum level of access to the org, sites, and APs. It can do the initial installation such as claim AP to Org, assign/unassign AP, or place on map, etc., but cannot unclaim or remove the AP from the Org. Site and AP access is allowed based on timed grace period and/or explicit site access.

https://www.mist.com/documentation/mist-ai-mobile-app/

Question 3

You are installing and booting up your first Juniper Mist AP at your site.

By default, which two statements are correct in this scenario? (Choose two.)

AThe AP will attempt to connect to the Mist cloud using port 443.

BThe AP will send DHCP requests using the native VLAN.

CThe AP will send DHCP requests with a VLAN ID of 10.

DThe AP will attempt to connect to the Mist cloud using port 8080.

Answer : A, B

According to the Initial AP Connection and VLANs & Static IP addresses - Mist document1, when a Juniper Mist AP boots up for the first time, it will expect to see a trunked port or the native VLAN=1 and will send a DHCP request on that VLAN. The AP will attempt to connect to the Mist cloud using port 443, which is the default HTTPS port.

Question 4

Regarding the seven layer OSI networking model, which two layers are different between Ethernet and Wi-Fi? (Choose two.)

Amedia access control (MAC) sub-layer

Bnetwork layer

Clogical link control (LLC) sub-layer

Dphysical layer

Answer : A, D

According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document3, two layers that are different between Ethernet and Wi-Fi in the OSI networking model are:

Media access control (MAC) sub-layer, which is part of the data link layer and defines how devices access and share the wireless medium.

Physical layer, which defines how data is encoded and transmitted over the wireless medium.

Question 5

What are basic data rates?

Afastest data rates

Boptional data rates

Crequired data rates

Ddisabled data rates

Answer : C

Basic data rates are the required data rates that all devices on a wireless network must support in order to connect to the network. These rates are used for management and control frames and can affect the performance of the network.

According to the Lecture 3 - Radio Frequency and Antenna Fundamentals - Part 2 document2, basic data rates are required data rates that all devices must support to communicate on a WLAN.

Question 6

All the access points (APs) on the site will obtain an IP address for the Management VLAN. You notice an additional IP address for each configured VLAN on the AP.

Which statement is correct in this scenario?

AThe AP is configured to support wireless mesh.

BThis behavior is enabled by default under the Site configuration.

CThe Local Status Page has been enabled in the AP setting under the Site configuration.

DThe AP MAC has a DHCP reservation.

Answer : C

According to the Mist documentation1, a Mist AP will pull a management IP address from the Native VLAN by default. However, if the Local Status Page is configured for the Site, all the site APs will pull their own IP address from the Management VLAN, but also addresses for each of the VLANs configured on the AP. This is because each AP creates a Switch Virtual Interface (SVI) for each VLAN on its eth0 interface.

The Local Status Page is a feature that allows you to access information about an AP's status and configuration through a web browser by connecting to its IP address2. This feature can be enabled or disabled at the site level under Site Settings > Access Points > Advanced Settings.

Question 7

You have received a Marvis Actions Missing VLAN notification.

In this scenario, where is the problem?

AThe gateway is missing the VLAN.

BAn access point is missing the VLAN.

CA client is missing the VLAN.

DA switch is missing the VLAN.

Answer : B

According to the JNCIS-MistAI Certification page3, a Marvis Actions Missing VLAN notification indicates that an access point is missing a VLAN that is configured on other access points in the same site.

Juniper Mist AI, Specialist JN0-451 JNCIS-MistAI Exam Questions