A site is experiencing intermittent packet loss on an SD-WAN tunnel. The tunnel statistics show 1% packet loss, 30 ms latency, and 3 ms jitter. The interface statistics for the WAN link show 0 errors, 0 discards, and 40% utilization. The engineer also notices that the dataplane CPU is at 95% during the packet loss events. Which action should the engineer take first?

Replace the cable on the WAN link.

Configure the SD-WAN policy to use a different tunnel.

Increase the bandwidth on the WAN link.

Investigate the dataplane CPU usage to identify what is causing the high utilization.

A branch firewall's primary MPLS link is experiencing intermittent application slowness. The SD-WAN engineer checks the interface statistics for the MPLS-facing ethernet1/1 and sees the following: input packets 12,450,000, output packets 11,980,000, input errors 3,412, output errors 1,208, input discards 45, output discards 12, and the current bandwidth utilization is 62% of the provisioned 50 Mbps. Which conclusion is best supported by these statistics?

The link is saturated and needs a bandwidth upgrade.

The input error count suggests a physical-layer or cabling issue on the receive path.

The output discards indicate the service provider is dropping packets due to policing.

The packet counts are too low for a 50 Mbps link and indicate a misconfigured interface speed.

Palo Alto NetworksCertified SD-WAN Engineer

Domain 3Objective 1

3.1 Demonstrate Understanding of Device-Level Statistics Monitoring SD-WAN-ENGINEER Practice Questions (Page 3)

Part of the Operations and Monitoring domain, which accounts for 18% of the SD-WAN-ENGINEER exam.

29questions here

6free pages

7concepts

18%of the exam

Questions 11–15

11expert · hard
A site is experiencing intermittent packet loss on an SD-WAN tunnel. The tunnel statistics show 1% packet loss, 30 ms latency, and 3 ms jitter. The interface statistics for the WAN link show 0 errors, 0 discards, and 40% utilization. The engineer also notices that the dataplane CPU is at 95% during the packet loss events. Which action should the engineer take first?
Select an answer first
12foundation · easy
Which tunnel statistic would be most affected by a congested link that causes packets to be dropped?
Select an answer first
13application · medium
A branch firewall's primary MPLS link is experiencing intermittent application slowness. The SD-WAN engineer checks the interface statistics for the MPLS-facing ethernet1/1 and sees the following: input packets 12,450,000, output packets 11,980,000, input errors 3,412, output errors 1,208, input discards 45, output discards 12, and the current bandwidth utilization is 62% of the provisioned 50 Mbps. Which conclusion is best supported by these statistics?
Select an answer first
14foundation · easy
In the PAN-OS web interface, where would you navigate to view real-time interface traffic statistics?
Select an answer first
15foundation · easy
A user reports poor VoIP call quality over an SD-WAN tunnel. Which tunnel statistic would you examine first to identify the likely cause?
Select an answer first

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3.1 Demonstrate Understanding of Device-Level Statistics Monitoring SD-WAN-ENGINEER Practice Questions (Page 3)

Questions 11–15

Which tunnel statistic would be most affected by a congested link that causes packets to be dropped?

In the PAN-OS web interface, where would you navigate to view real-time interface traffic statistics?

A user reports poor VoIP call quality over an SD-WAN tunnel. Which tunnel statistic would you examine first to identify the likely cause?

Keep studying — Operations and Monitoring