JN0-452: Mist AI Wireless, SpecialistDemo

By Juniper · Question Mode

QuestionQ21

Juniper Mist Network Operations

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Question Image

When your Juniper Access Point first receives power, you watch its LED while it tries to join the cloud. The LED blinks amber two times. You reboot both the switch and the AP. After approximately 50 seconds, the AP blinks amber seven times.

With reference to the exhibit, what is occurring in this scenario?

  • A At first, there was power to the AP but no link-level connectivity; when you rebooted, it came back on, it obtained a DHCP address and it was able to ping the default gateway, but the DNS was not working.
  • B At first, there was power to the AP but no link-level connectivity; when you rebooted, it came back on and you experienced a firewall problem.
  • C Your connection is being blocked by a firewall and some ports must be opened.
  • D At first, there was power to the AP but you could not get a DHCP address; when you rebooted, it came back on and it had a DHCP address, but it was not able to ping the default gateway.
Explanation

Two amber LED blinks indicate that the AP has no Ethernet link, despite having power. Seven amber blinks indicate no DNS response: the AP has received DNS server information through DHCP but DNS lookups are failing. This combination matches initial loss of link-level connectivity followed by a DNS problem after the reboot.

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