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| Certification Vendor: | Palo Alto Networks |
|---|---|
| Exam Name: | Palo Alto Networks SD-WAN Engineer |
| Exam Number: | SD-WAN-Engineer |
| Real Exam Qty: | 75–85 |
| Exam Format: | Matching, Ordering, Multiple choice |
| Passing Score: | 860 (scale 300–1000) |
| Exam Duration: | 90 minutes |
| Related Certifications: | Palo Alto Networks Certified Network Security Engineer Palo Alto Networks Certified SASE Engineer |
| Certificate Validity Period: | 2 years |
| Exam Price: | $250 USD |
| Available Languages: | English |
| Recommended Training: | Prisma SD-WAN: Design and Operation Palo Alto Networks Digital Learning Path |
| 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 |
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質問 # 75
What is the basis for calculating the minimum bandwidth subscription required for branch IONs?
正解：A
解説：
Palo Alto Networks utilizes an aggregate throughput model for Prisma SD-WAN licensing.1 The minimum bandwidth subscription required for a branch ION is determined by the maximum traffic (the sum of both ingress and egress) that passes through the ION device. This is often referred to as "Aggregate Throughput." It is a critical distinction in the Prisma SD-WAN architecture because the license must account for all traffic processed by the device, whether that traffic stays local (Direct Internet Access), goes to the Data Center via the VPN fabric, or moves between local LAN segments.
When sizing a subscription, engineers must evaluate the total capacity of the WAN circuits connected to the branch. For example, if a branch has two 100 Mbps internet circuits, the device is capable of processing 200 Mbps of egress traffic and 200 Mbps of ingress traffic simultaneously. However, the licensing is based on the aggregate peak throughput the customer expects to utilize across the device's interfaces.
Choosing an under-sized subscription based only on "fabric traffic" (Option B) or "ISP capacity" (Option D) without considering the total bi-directional flow can lead to artificial performance bottlenecks. If the traffic exceeds the licensed bandwidth, the ION device will police the traffic to the licensed limit, regardless of the physical port speed or the hardware's theoretical maximum. Therefore, the subscription must be aligned with the total actual traffic volume the device is expected to handle to ensure an optimal user experience and full utilization of available circuit bandwidth.
質問 # 76
Which IONs can support Branch Gateway?
正解：B
解説：
In the Prisma SD-WAN ecosystem, ION (Instant-On Network) devices are categorized based on their performance capabilities, throughput, and their specific role within the network architecture-namely, whether they function as a Branch device or a Data Center (DC) device.2 The "Branch Gateway" designation typically refers to high-capacity hardware or virtual instances designed to handle complex routing, massive throughput, and high-density connectivity requirements found in large branch offices or regional hubs.
The devices listed in option D represent the high-performance tier of the ION family. The ION 9200 and ION
5200 are flagship hardware appliances designed for large-scale deployments, offering multi-gigabit throughput and extensive port density.3 The ION 3200 serves as a robust mid-to-high range branch solution.4 The ION 7116V is a high-capacity virtual appliance (part of the 7000 series) designed to provide flexible, software-defined gateway capabilities in virtualized environments or public clouds (like AWS, Azure, or GCP).
Specifically, these models support advanced features such as Layer 3 hardware forwarding, integrated switching (in certain sub-models), and the processing power required to run deep packet inspection (DPI) for application-based path selection at scale. While smaller units like the 1200 series are excellent for small-to- medium branches, the 9200, 3200, 5200, and 7116V are the primary workhorses for organizations requiring
"Gateway" class performance to manage heavy traffic loads and maintain high availability in a Prisma SD- WAN fabric.
質問 # 77
A multinational company is deploying Prisma SD-WAN across North America, Europe, and Asi a. The data centers in the North America region have served all regions, but regional policies are now being enforced that mandate each of the regions to build their own data centers and branch sites to only connect to their respective regional data centers.
How can this regionalization be achieved so that new or existing branch sites only build tunnels to the regional DC IONs?
正解：C
解説：
Comprehensive and Detailed Explanation
To achieve strict regional isolation where branch sites only form VPN tunnels with Data Centers in their specific region (e.g., EU branches to EU DCs only), the correct architectural feature to utilize is VPN Clusters.
In Prisma SD-WAN (CloudGenix), a Cluster defines a logical security and topology boundary for the overlay network. By default, devices may be placed in a "Default" cluster where they attempt to form a mesh or hub-and-spoke topology with all other reachable devices in that context.
To enforce the new policy:
Logical Partitioning: The administrator should create separate VPN Clusters for each region (e.g., "Cluster-NA", "Cluster-EU", "Cluster-Asia").
Assignment: The Regional Data Center IONs and their corresponding Branch IONs must be moved into their respective clusters.
Result: The Prisma SD-WAN controller dictates that devices can only establish Secure Fabric (VPN) tunnels with other devices within the same cluster. This effectively segments the global network, ensuring that an Asian branch never attempts to build a tunnel to a North American DC, satisfying the compliance requirement without complex access lists or manual tunnel configuration.
Option B (Manual Tunnels) is administratively unscalable and negates the benefits of SD-WAN automation.
Option C (Circuit Labels) is primarily for path selection and traffic steering, not for hard topology segmentation.
Option D (VRFs) is used for local Layer 3 segmentation (routing isolation) within a device, not for controlling WAN overlay tunnel formation scope.
質問 # 78
Which configuration requirement must be met to allow two branch ION devices to automatically establish a direct Dynamic VPN (branch-to-branch) connection for traffic flow, bypassing the Data Center?
正解：D
解説：
Comprehensive and Detailed Explanation
Dynamic VPNs (also known as ION-to-ION or Branch-to-Branch VPNs) allow Prisma SD-WAN devices to establish direct, on-demand secure tunnels between branch sites to optimize latency for peer-to-peer traffic (e.g., VoIP calls between offices).
To enable this capability, the primary architectural requirement is the configuration of VPN Clusters.
A VPN Cluster defines a logical group of devices that are authorized to communicate with one another.
By default, or if devices are in different clusters without peering, the topology typically defaults to Hub-and-Spoke, where branches only talk to the Data Center.
When two branch ION devices are placed into the same VPN Cluster (or peered clusters), the controller shares the necessary reachability and cryptographic information between them.
Once in the same cluster, the ION devices monitor traffic. If a user at Branch A tries to contact a server at Branch B, the ION devices detect this interest. If a direct path is available (e.g., via public internet), they will dynamically negotiate a direct VPN tunnel, bypassing the Data Center hub. This offloads the hub and reduces latency. Option B is incorrect because SD-WAN eliminates manual GRE config. Option C is incorrect because dynamic VPNs are a performance feature, not just a disaster recovery feature.
質問 # 79
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 # 80
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