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| Certification Vendor: | Palo Alto Networks |
|---|---|
| Exam Name: | Palo Alto Networks SD-WAN Engineer |
| Exam Number: | SD-WAN-Engineer |
| Exam Price: | $250 USD |
| Passing Score: | 860 (on a scale of 300–1000) |
| Exam Format: | Scenario-based questions, Multiple choice |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | Approximately 80 |
| Available Languages: | English |
| Related Certifications: | Palo Alto Networks Certified SD-WAN Engineer |
| Recommended Training: | Prisma SD-WAN: Design and Operation (Official Training) |
| Exam Registration: | Official Certification Registration |
| Sample Questions: | Palo Alto Networks SD-WAN-Engineer Sample Questions |
| Exam Way: | Online proctored or authorized testing center (Pearson VUE) |
| Pre Condition: | Recommended experience with SD-WAN and network engineering concepts; familiarity with Prisma SD-WAN solutions is strongly advised. |
| Official Syllabus URL: | https://www.paloaltonetworks.com/services/education/palo-alto-networks-sd-wan-engineer |
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NEW QUESTION # 67
A multinational company is deploying Prisma SD-WAN across North America, Europe, and Asia. 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?
Answer: D
Explanation:
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.
NEW QUESTION # 68
An administrator needs to ensure that critical VoIP traffic is not dropped even when the branch's primary internet link is fully saturated with bulk file transfers.
Which QoS mechanism does Prisma SD-WAN automatically apply to the "Platinum" priority class to prevent starvation by lower-priority classes?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
Prisma SD-WAN utilizes a hierarchical QoS model (typically based on Hierarchical Token Bucket or similar shaping algorithms) to manage bandwidth contention.
Guaranteed Bandwidth: The "Platinum" class (used for Real-Time voice/video) is assigned a guaranteed bandwidth percentage (floor) in the QoS profile. This ensures that even if "Gold" (Transactional) or "Silver" (Bulk) traffic is trying to consume 100% of the link, the scheduler reserves the specific portion (e.g., 30%) for Platinum traffic, preventing starvation.
Shaping, not Policing: Unlike simple policing which drops excess traffic hard, the ION device shapes the egress traffic. If the link is congested, the scheduler delays the lower-priority packets (buffering) to allow the high-priority Platinum packets to exit immediately.
Why not Strict Priority (A)? While Platinum behaves like a priority queue, pure Strict Priority can completely starve lower queues if the high-priority traffic is misbehaving or voluminous. Prisma SD-WAN typically uses bandwidth guarantees (floors) and limits (ceilings) to ensure fair sharing while protecting critical apps.
NEW QUESTION # 69
Which component of the Prisma SD-WAN solution is responsible for the deep application identification (App-ID) and the generation of flow metrics (Network Transfer Time, Server Response Time) at the branch?
Answer: A
Explanation:
Comprehensive and Detailed Explanation
The ION Device Data Plane (the software running locally on the hardware appliance at the branch) is the component responsible for the heavy lifting of traffic analysis.
Edge Processing: Prisma SD-WAN uses an "Application-Defined" architecture. The ION device performs Deep Packet Inspection (DPI) on the first few packets of a flow to identify the application (e.g., distinguishing "Skype Video" from "Skype Chat").
Metric Calculation: The ION device timestamping engine calculates the performance metrics (RTT, NTT, SRT) in real-time as packets pass through its interfaces. It aggregates this metadata.
Role of Controller (B): The Controller collects and visualizes this data (Analytics), but it does not generate it. The Controller does not sit in the data path of the user traffic. If the ION relied on the controller for App-ID, latency would be unacceptably high. Therefore, all detection and metric generation happens locally on the ION Device.
NEW QUESTION # 70
In the Prisma SD-WAN portal, the Application Health dashboard assigns a color-coded "Health Score" (Green, Yellow, Red) to applications.
Which three metrics are combined to calculate this composite AppX (Application Experience) score? (Choose three.)
Answer: A,C,D
Explanation:
Comprehensive and Detailed Explanation
The AppX (Application Experience) score is a proprietary metric used by Prisma SD-WAN to provide a holistic view of user experience, rather than just network statistics. It is calculated based on three key components:
* Transaction Failure Rate (A): The percentage of application transactions that failed (e.g., TCP resets, HTTP 500 errors). This indicates availability.
* Network Transfer Time (B): The time taken for packets to traverse the network (WAN/LAN latency).
This indicates network health.
* Server Response Time (C): The time taken by the application server to respond to a request. This indicates backend performance.
Why not D or E?
* Bandwidth Utilization (D) is a capacity metric, not a direct measure of quality. A link can be 90% full but still deliver packets quickly (good AppX), or 10% full but dropping packets (bad AppX).
* Jitter (E) is a network-layer metric primarily relevant for UDP Real-Time media. While important, the high-level "AppX" score for general TCP apps focuses on the "Time-to-Glass" metrics (NTT/SRT) and success rates.
NEW QUESTION # 71
Which statements accurately describes how the Prisma SD-WAN zone-based firewall functions within a branch network?
Answer: D
Explanation:
The Prisma SD-WAN (ION) device includes a native, application-aware Zone-Based Firewall (ZBFW) that provides comprehensive security within the branch without the mandatory requirement for additional hardware.2 The fundamental principle of this architecture is the grouping of interfaces and sub-interfaces into logical Security Zones.3 Once these zones are defined (e.g., LAN, WAN, Guest, IoT), the administrator can create security policies that govern the traffic permitted to flow between them.4 Unlike traditional routers that rely on stateless Access Control Lists (ACLs) which are difficult to manage and lack application visibility, the Prisma SD-WAN ZBFW is stateful and application-aware.5 This means it can apply granular control over North-South traffic (flows moving between the LAN and the WAN/Internet) and East-West traffic (flows moving between different segments within the LAN, such as from a Guest zone to a Corporate zone).6 By using security zones, an ION device can ensure that even if two local networks are connected to the same physical appliance, they remain completely isolated unless a specific policy explicitly allows communication.
This "Zero Trust" approach at the branch edge allows organizations to segment vulnerable devices (like IoT) from critical internal resources and strictly control how users access the internet or the corporate data center.7 The ZBFW works in tandem with the global controller to ensure that security postures are consistent across all branch locations, eliminating the complexity of manual ACL management at each site.8
NEW QUESTION # 72
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