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Question 29 - 500-220 discussion

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Refer to the exhibit.

What does the MX Security Appliance send to determine whether VPN traffic exceeds the configured latency threshold in the VoIP custom performance class?

A.

1000-byte TCP probes every second, through VPN tunnels that are established over the primary WAN link.

Answers
A.

1000-byte TCP probes every second, through VPN tunnels that are established over the primary WAN link.

B.

100-byte UDP probes every second, through VPN tunnels that are established over every WAN link.

Answers
B.

100-byte UDP probes every second, through VPN tunnels that are established over every WAN link.

C.

100-byte UDP probes every second, through VPN tunnels that are established over the primary WAN link.

Answers
C.

100-byte UDP probes every second, through VPN tunnels that are established over the primary WAN link.

D.

1000-byte TCP probes every second, through VPN tunnels that are established over every WAN link.

Answers
D.

1000-byte TCP probes every second, through VPN tunnels that are established over every WAN link.

Suggested answer: B

Explanation:

The performance probe is a small payload (approximately 100 bytes) of UDP data sent over all established VPN tunnels every 1 second. MX appliances track the rate of successful responses and the time that elapses before receiving a response. This data allows the MX to determine the packet loss, latency, and jitter over each VPN tunnel in order to make the necessary performance-based decisions.

https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/Best_Practice_Design_-_MX_Security_and_SD-WAN/Meraki_SD-WAN#Performance_Probes

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asked 11/10/2024
Donn Policarpio
43 questions
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