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| Certification Vendor: | Palo Alto Networks |
|---|---|
| Exam Name: | Palo Alto Networks SD-WAN Engineer |
| Exam Number: | SD-WAN-Engineer |
| Exam Format: | Matching, Multiple choice, Ordering |
| Available Languages: | English |
| Related Certifications: | Palo Alto Networks Certified Network Security Engineer Palo Alto Networks Certified SASE Engineer |
| Passing Score: | 860 (scale 300–1000) |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | 75–85 |
| Certificate Validity Period: | 2 years |
| Exam Price: | $250 USD |
| Recommended Training: | Palo Alto Networks Digital Learning Path Prisma SD-WAN: Design and Operation |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Palo Alto Networks SD-WAN-Engineer Sample Questions |
| Exam Way: | In-person only at Pearson VUE test centers (online proctoring discontinued May 1, 2025) |
| Pre Condition: | Recommended: 1–2 years of experience with networking, WAN technologies, and Palo Alto Networks solutions; no mandatory prerequisite exams |
| Official Syllabus URL: | https://www.paloaltonetworks.com/services/education/palo-alto-networks-sd-wan-engineer |
>> Palo Alto Networks SD-WAN-Engineer試験対策 <<
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質問 # 79
By default, how many days will Prisma SD-WAN VPNs stay operational before the keys expire when an ION device loses connection with the controller?
正解：D
解説：
Comprehensive and Detailed Explanation
The Prisma SD-WAN (CloudGenix) solution is designed with a separation of the control plane (Controller) and the data plane (ION devices).1 In the event that an ION device loses connectivity to the Cloud Controller (often referred to as running in "headless mode"), the device continues to forward traffic and maintain existing VPN tunnels using the keys it currently holds.2 However, for security purposes, the VPN session keys (shared secrets) used for the Secure Fabric have a finite validity period. The system is designed such that these keys are rotated regularly.3 If the controller is unreachable, the ION device can continue to rotate keys locally and maintain the VPNs for a maximum default period of 72 hours (exactly 3 days).4 If the connection to the controller is not restored within this 72-hour window, the keys will eventually expire, and the ION will be unable to retrieve new authorized key material from the controller.5 Consequently, the VPN tunnels will go down, and the "out of shared secret key" error will be observed in the VPN status logs. This mechanism ensures that a permanently compromised or stolen device cannot maintain network access indefinitely without central authorization.
質問 # 80
When troubleshooting an issue at a site that is running on two cellular links from two carriers, the operations team shared some evidence shown in the graph below:
(SNR Graph showing Carrier-1 in blue dropping to near 0 dB and Carrier-2 in green staying relatively stable between 4.5 dB and 6.5 dB)
For the time duration shown in the graph, what are two inferences about the site's traffic that can be made? (Choose two.)
正解：C、D
解説：
Comprehensive and Detailed Explanation at least 150 to 250 words each from Palo Alto Networks SD-WAN Engineer documents:
In Prisma SD-WAN, the Signal-to-Noise Ratio (SNR) is a critical metric used to monitor the health and performance of cellular WAN interfaces. SNR measures the strength of the desired signal relative to the background noise level; higher values indicate a cleaner signal, while lower values suggest that noise is overwhelming the signal, typically leading to increased packet loss, high latency, and reduced throughput.
Analyzing the provided graph, Carrier-1 (blue line) shows a severe drop in SNR, plummeting from approximately 4.5 dB to nearly 0.3 dB between 15:00 and 23:00. An SNR value this low is indicative of a failing or highly unstable link that cannot reliably sustain data traffic, directly supporting Inference A-that Carrier-1 experienced significant performance degradation. In contrast, Carrier-2 (green line) maintains a much higher and more consistent SNR throughout the same period.
Prisma SD-WAN's AppFabric uses application-based path selection and SLA monitoring to ensure the best possible user experience. When the system detects that a primary path (like Carrier-1) has degraded below acceptable thresholds-often triggered by high loss or latency resulting from poor signal quality-it will dynamically steer application flows to an alternative healthy path. Therefore, Inference D is correct: because Carrier-1's quality became untenable while Carrier-2 remained stable, the ION device would have likely initiated a path switchover to move traffic from the degraded Carrier-1 to the healthier Carrier-2.
質問 # 81
The UI triggers incident DEVICESW_CONCURRENT_FLOWLIMIT_EXCEEDED for a branch site. Based in the image below, which tool can be used to identify the host?
正解：B
解説：
When a Prisma SD-WAN ION device triggers the
DEVICESW_CONCURRENT_FLOWLIMIT_EXCEEDED incident, it indicates that the number of active sessions has reached the hardware or software-defined capacity limit of that specific appliance. In the provided graph, we can see a massive spike in concurrent TCP flows on May 13th, reaching nearly 500k, which is a clear indicator of anomalous behavior-likely a "top talker" host, a malware outbreak, or a misconfigured application generating excessive connections.
To identify the specific host responsible for this surge, administrators should navigate to Monitor # Activity
# Flows. This interface, commonly known as the Flow Browser, provides the most granular visibility into real-time and historical session data within the Prisma SD-WAN fabric. Unlike "Transaction Stats," which provide high-level summaries, or "New Flows," which only show the rate of session initiation, the Flows view allows an engineer to filter and sort the active session table by metadata such as Source IP, Destination IP, Application, and Site.
By utilizing the Flow Browser, an administrator can quickly group flows by "Source IP" to pinpoint exactly which internal host is consuming the most flow table entries. This is the standard "Day 2" operational workflow for troubleshooting performance and capacity incidents. While running a tcpdump (Option A) is a valid diagnostic for packet-level analysis, it is inefficient for identifying a single host among hundreds of thousands of flows and can further tax the device's CPU during a high-load event. The Monitor # Activity # Flows tool is designed specifically for this type of scale, providing the necessary visibility to remediate the flow limit exhaustion and restore normal network operations.
質問 # 82
In which modes can a Prisma SD-WAN branch be deployed?
正解：C
解説：
Comprehensive and Detailed Explanation
Prisma SD-WAN (formerly CloudGenix) defines three distinct Operational Modes for a branch site, which determine how the ION device processes traffic and interacts with the network.
Analytics Mode (Monitor): In this mode, the ION device is typically deployed inline or in a "promiscuous" monitor state to gain visibility into network traffic without actively enforcing path selection policies.1 It "learns" applications, bandwidth usage, and network characteristics (auditing) but does not steer traffic or block flows.2 This is often used during Proof of Concepts (POVs) or the initial "burn-in" phase of a deployment to generate reports without risking network disruption.
Control Mode: This is the full production state. In Control Mode, the ION device actively enforces Path Policies, QoS Policies, and Security Policies. It builds Secure Fabric VPN tunnels, steers traffic based on application SLAs (e.g., sending voice over MPLS and bulk data over Broadband), and handles failover events.3 This is the required mode for a fully functional SD-WAN site.
Disabled Mode: This mode effectively shuts down the site's SD-WAN functionality from the controller's perspective. It is an administrative state used when a site is being decommissioned, provisioned but not yet live, or isolated for troubleshooting. In this state, the device does not participate in the fabric.
質問 # 83
Network segmentation is required due to overlapping IP address space and M&A scenarios. Which Prisma SD-WAN feature will achieve the desired segmentation and end-to-end connectivity in this use case?
正解：A
解説：
In modern enterprise environments, particularly those undergoing Mergers and Acquisitions (M&A), engineers often face the challenge of overlapping IP address space.4 Prisma SD-WAN addresses this by utilizing Virtual Routing and Forwarding (VRF) profiles.5 A VRF creates a separate routing table instance within the ION device, allowing multiple networks to coexist on the same physical hardware even if they use the same IP ranges.
To achieve end-to-end connectivity while maintaining strict segmentation, these VRF profiles must be correctly associated with site bindings.7 When a VRF is "bound" to a site, the ION device ensures that traffic belonging to that specific segment remains isolated not only locally (on the LAN) but also across the secure SD-WAN fabric. Prisma SD-WAN achieves this by encapsulating the traffic within the overlay tunnels and tagging it with a unique VRF identifier.8 This ensures that a "Corporate" VRF at Site A can only communicate with the "Corporate" VRF at Site B, effectively keeping "Guest" or "Acquisition" traffic completely separate.
This architectural approach is superior to traditional underlay segmentation (Option A) or simple interface- based virtual routers (Option D) because it provides a centralized, software-defined method to manage multi- tenancy. By using VRF profiles, administrators can define a global security and routing posture once and push it to all relevant sites.9 This simplifies the integration of new business units with conflicting IP schemes, as the Prisma SD-WAN controller handles the complex orchestration required to maintain path selection and security policies uniquely for each VRF across the entire global network.
質問 # 84
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2026年GoShikenの最新SD-WAN-Engineer PDFダンプおよびSD-WAN-Engineer試験エンジンの無料共有：https://drive.google.com/open?id=1KzMyqb8riwB2aMEUgi99XZeMGSO95A4x