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| Certification Vendor: | Palo Alto Networks |
|---|---|
| Exam Name: | Palo Alto Networks Certified SD-WAN Engineer |
| Exam Number: | SD-WAN-Engineer |
| Available Languages: | English |
| Certificate Validity Period: | 2 years |
| Related Certifications: | Security Service Edge (SSE) Engineer Network Security Professional |
| Exam Duration: | 90 minutes |
| Exam Format: | Scenario-based, Multiple choice |
| Sample Questions: | Palo Alto Networks SD-WAN-Engineer Sample Questions |
| Exam Way: | Online (Proctored) or Pearson VUE Test Center |
| Pre Condition: | Recommended: Network Security Professional certification or equivalent experience. |
| Official Syllabus URL: | https://www.paloaltonetworks.com/services/education/sd-wan-engineer |
>> Certification SD-WAN-Engineer Questions <<
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NEW QUESTION # 76
When integrating Prisma SD-WAN with Prisma Access, what is the specific role of the Service Connection (SC)?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
In the Prisma Access architecture (integrated with SD-WAN), distinct connection types serve different purposes.
Remote Networks: These are the connections from your Branch sites (using ION devices) into the cloud. They allow branches to get to the internet or other branches.
Service Connections (SC): This is a specialized high-bandwidth connection used to bridge the Prisma Access Cloud to your Private Data Center or Headquarters.
The primary use case for a Service Connection (Option A) is to allow mobile users and branch users (who are connected to the Prisma cloud) to reach private, centralized resources that still reside on-premise, such as Active Directory controllers, legacy databases, or mainframes. Without a Service Connection, users in the cloud would be able to reach the internet and each other, but not the servers physically located in your HQ data center. The CloudBlade automates the creation of these tunnels, but architecturally, the "Service Connection" is the "cloud-to-HQ" bridge.
NEW QUESTION # 77
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?
Answer: A
Explanation:
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.
NEW QUESTION # 78
A network installer is attempting to claim a new ION device using the "Claim Code" method. The device is connected to the internet, but the status in the portal remains stuck at "Claimed" and does not transition to
"Online". The installer connects a laptop to the LAN port of the ION and can successfully browse the internet, confirming the uplink is active.
What is the most likely cause of the device failing to reach the "Online" state?
Answer: C
NEW QUESTION # 79
An engineer at a managed services provider is updating an application that allows its customers to request firewall changes to also manage SD-WAN. The application will be able to make any approved changes directly to devices via API.
What is a requirement for the application to create SD-WAN interfaces?
Answer: B
Explanation:
Comprehensive and Detailed Explanation at least 150 to 250 words each from Palo Alto Networks SD-WAN Engineer documents:
In Palo Alto Networks PAN-OS SD-WAN environments, automation and orchestration are key components for service providers managing large-scale deployments. The PAN-OS REST API provides a modern, structured way to programmatically manage configuration objects, including those required for SD-WAN functionality.
When an application is designed to push changes directly to devices (individual firewalls) rather than through a centralized template in Panorama, it must interact with the firewall's local REST API. To successfully create a virtual SD-WAN interface, the application must target the correct resource URI. In the PAN-OS API schema, the logical SD-WAN interface-which groups physical links to enable application-based path selection-is managed via the sdwanInterfaces parameter within the REST API.
It is important to distinguish between the interface itself and the profiles that support it. Option A refers to sdwanInterfaceprofiles, which are the objects used to define the characteristics of a link (such as bandwidth, link type, and monitoring frequency), but not the interface itself. Furthermore, since the scenario specifies making changes "directly to devices," the target must be the firewall rather than Panorama. While Panorama can manage these objects via templates, a direct-to-device automation workflow necessitates using the firewall's REST API endpoint. Utilizing the REST API over the legacy XML API is the recommended standard for modern integrations due to its ease of use with JSON payloads and alignment with contemporary DevSecOps practices. By using the sdwanInterfaces parameter on the firewall, the MSP application can programmatically bind physical Layer 3 interfaces to the SD-WAN fabric.
NEW QUESTION # 80
Which implementation allows Prisma SD-WAN to improve application performance for organizations facing inconsistent user experiences across branch locations, especially due to varying device types and network conditions, by using Layer 4 and Layer 7 optimization to boost throughput?
Answer: A
Explanation:
Prisma SD-WAN addresses inconsistent application performance through Application Acceleration, which encompasses a suite of features designed to mitigate the effects of latency and packet loss.1 While basic SD- WAN functionality handles path selection, Application Acceleration goes further by employing Layer 4 (TCP) and Layer 7 (Application) optimizations. These optimizations are particularly effective for organizations with diverse branch environments where network conditions are unpredictable.
At Layer 4, Prisma SD-WAN implements TCP optimization techniques such as window scaling, selective acknowledgments, and congestion control algorithms.2 These mechanisms allow the ION devices to "trick" the end hosts into sending data faster by acknowledging packets locally, effectively shielding the application from the round-trip time (RTT) delays inherent in long-distance WAN circuits. This significantly boosts throughput for bulk data transfers and legacy protocols that were not originally designed for high-latency environments.
At Layer 7, the system can perform application-specific optimizations, such as metadata caching or protocol- specific acceleration for services like SMB or HTTP.3 By reducing the number of "chatty" exchanges required to complete a transaction, Prisma SD-WAN ensures a snappy, consistent user experience regardless of whether the user is on a high-speed fiber link or a degraded cellular connection. This is distinct from Forward Error Correction (FEC) (Option C) or Packet Duplication (Option A), which focus on reconstructing lost packets rather than optimizing the protocol throughput itself. By combining these L4 and L7 techniques, Application Acceleration ensures that business-critical SaaS and data center applications perform optimally across the entire distributed enterprise.
NEW QUESTION # 81
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