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Free JN0-451 Exam Braindumps (page: 5)

Page 4 of 20
PDF with 79 Questions

RF templates are assigned to which Mist configuration object?

  1. config templates
  2. site groups
  3. WLANs
  4. sites

Answer(s): D

Explanation:

According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, RF templates are assigned to sites, which are logical groupings of devices based on physical location or other criteria. RF templates allow you to configure RF parameters such as channel width, transmit power, and data rates for multiple devices at once.


Reference:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config- guide/b_wl_17_2_cg/rf_templates.html



What are two functions of Mist Radio Resource Management (RRM)? (Choose two.)

  1. transmit power control
  2. WLAN scheduling
  3. channel assignment
  4. Ethernet configurations

Answer(s): A,C

Explanation:

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
According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, two functions of Mist Radio Resource Management (RRM) are:
Transmit power control, which adjusts the transmit power of APs based on their coverage area and interference level.
Channel assignment, which assigns channels to APs based on their location and interference level.


Reference:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config- guide/b_wl_17_2_cg/radio_resource_management.html



You are asked to forward event messages from Mist to an external log collector.

In this scenario, which feature would enable this capability?

  1. syslog
  2. webhooks
  3. NETCONF
  4. SNMP traps

Answer(s): A

Explanation:

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

According to the Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide1, syslog is a feature that enables forwarding event messages from Mist to an external log collector. Syslog messages can be sent over UDP or TCP protocols.


Reference:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config- guide/b_wl_17_2_cg/syslog.html



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

  1. 5 MHz
  2. 22 MHz
  3. 20 MHz
  4. 3 MHz

Answer(s): C


Reference:

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

http://faculty.georgebrown.ca/~jolenewa/courses/comp3049-intermediate-wirel/lecture- 3--radio-frequency.pdf






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