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[General] Palo Alto Networks SD-WAN-Engineer Fragen Und Antworten - SD-WAN-Engineer Prüfun

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【General】 Palo Alto Networks SD-WAN-Engineer Fragen Und Antworten - SD-WAN-Engineer Prüfun

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Palo Alto Networks SD-WAN-Engineer Prüfungsplan:
ThemaEinzelheiten
Thema 1
  • Deployment and Configuration: This domain focuses on Prisma SD-WAN deployment procedures, site-specific settings, configuration templates for different locations, routing protocol tuning, and VRF implementation for network segmentation.
Thema 2
  • Troubleshooting: This domain focuses on resolving connectivity, routing, forwarding, application performance, and policy issues using co-pilot data analysis and analytics for network optimization and reporting.
Thema 3
  • Unified SASE: This domain covers Prisma SD-WAN integration with Prisma Access, ADEM configuration, IoT connectivity via Device-ID, Cloud Identity Engine integration, and User
  • Group-based policy implementation.
Thema 4
  • Operations and Monitoring: This domain addresses monitoring device statistics, controller events, alerts, WAN Clarity reports, real-time network visibility tools, and SASE-related event management.
Thema 5
  • Planning and Design: This domain covers SD-WAN planning fundamentals including device selection, bandwidth and licensing planning, network assessment, data center and branch configurations, security requirements, high availability, and policy design for path, security, QoS, performance, and NAT.

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Palo Alto Networks SD-WAN Engineer SD-WAN-Engineer Prüfungsfragen mit Lösungen (Q85-Q90):85. Frage
Full discovery and classification of IoT devices by the IoT Security service is failing. Which Prisma SD- WAN ION device configuration will cause this behavior?
  • A. The Syslog export configuration on the ION devices to the Strata Logging Service has filters that are too restrictive, potentially excluding logs vital for IoT Security's device identification and classification engine. This prevents comprehensive event data, including device discovery messages, from reaching the portal.
  • B. The ION devices are not configured to explicitly enable and export IPFIX flow records, especially those containing Layer 2 and Layer 7 context, to the Strata Logging Service for IoT Security. While ARP data is sent by default, comprehensive device classification relies on these detailed flow records, which are not being captured.
  • C. The Prisma SD-WAN ION devices lack properly configured or enabled Service Health Probes specifically targeting the IoT device subnets. Without these active probes, the system cannot gather critical real-time reachability and performance metrics essential for dynamic device profiling and classification.
  • D. The ION devices are missing DHCP Configuration. If ION devices are not explicitly configured as either a DHCP relay agent or a DHCP server, DHCP traffic logs will not be sent to the Strata Logging Service, resulting in incomplete device profiles for IoT Security.
Antwort: D
Begründung:
Palo Alto Networks IoT Security relies on rich metadata and traffic logs to identify, classify, and secure devices across the network. A critical component of this discovery process is the ingestion of DHCP (Dynamic Host Configuration Protocol) traffic. DHCP packets contain vital information about a device, such as the MAC address, vendor-specific identifiers (Option 60), and hostnames, which are used by the machine learning engine to create a precise device profile.
In a Prisma SD-WAN environment, if the ION devices are not involved in the DHCP process, the necessary logs cannot be forwarded to the Strata Logging Service (SLS) for analysis by the IoT Security cloud. To ensure successful discovery, the ION device at the branch must be explicitly configured as either the DHCP Server for the local segment or as a DHCP Relay Agent. When the ION handles DHCP traffic, it automatically extracts and sends the relevant metadata to the cloud.
If the ION is bypassed-for example, if a local Layer 3 switch is handling DHCP internally without relaying it to the ION-the IoT Security service will lack the context needed to move beyond basic IP-level visibility.
Without these DHCP-derived "fingerprints," the system cannot perform the full classification required to apply granular security policies or identify potential vulnerabilities. Therefore, verifying that the ION device is correctly integrated into the DHCP lifecycle is the primary troubleshooting step for incomplete IoT device discovery in the Prisma SD-WAN portal.

86. Frage
Site templates are to be used for the large-scale deployment of 100 Prisma SD-WAN branch sites across different regions.
Which two statements align with the capabilities and best practices for Prisma SD-WAN site templates? (Choose two.)
  • A. Site templates offer the capability to pre-stage device configurations by creating a device shell.
  • B. Once a site has been deployed using a template, its configuration can be updated or modified by applying an updated version of the template.
  • C. The use of Jinja conditional statements within a site template is not supported, thereby limiting dynamic customization options.
  • D. Mandatory variables for any site template include the site name, ION software version, and at least one ION serial number /device name pair.
Antwort: A,D
Begründung:
Comprehensive and Detailed Explanation
Site Templates (often referred to as Site Configuration Templates) are a critical tool for the Zero Touch Provisioning (ZTP) of large-scale deployments in Prisma SD-WAN.
1. Device Pre-staging (Statement C):
One of the primary capabilities of Site Templates is the creation of Device Shells. A device shell is a configuration container that exists in the controller before the physical hardware is installed or connected. By using a template, an administrator can pre-provision the entire configuration (interfaces, routing, subnets) for the "Site" and "Element" (Device). When the physical ION device is later connected to the internet and claimed (associated with the shell via its Serial Number), it immediately inherits this pre-staged configuration, enabling a true "plug-and-play" deployment.
2. Mandatory Variables (Statement B):
To successfully instantiate a functional site from a generic template, specific unique identifiers are required in the variable data set (typically a CSV file).
Site Name: Identifies the location in the portal.
ION Software Version: Ensures the device boots to the specific validated code version required for the deployment, preventing inconsistencies.
ION Serial Number / Device Name: Required to bind the logical configuration (Shell) to the physical hardware. Even if the serial is added later during the claim process, the structure of the template and the deployment workflow mandates these variables to ensure the device can be uniquely identified and managed within the fabric.
Note on Option D: While it is technically possible to re-deploy a template, the Best Practice for "Day 2" operations (updating or modifying configuration after deployment) is to use Prisma SD-WAN Stacks (Network Stacks, Security Stacks, etc.). Stacks allow for granular, policy-based updates across multiple sites without the destructive or rigid nature of re-applying a full site initialization template. Therefore, D is not the aligned best practice.

87. Frage
Which action meets the needs of an organization that requires elevated incident notifications for its headquarters location?
  • A. Export syslog to an external syslog collector and mark all messages as "Critical."
  • B. Enable SNMPv3 trap notifications to an external network management system.
  • C. Enable an event policy rule for the site with the action to set priority to the highest available level.
  • D. Implement performance policy specifically for the site with very aggressive service-level agreement (SLA) thresholds.
Antwort: C
Begründung:
In the Prisma SD-WAN (Instant-On Network) management framework, administrators can customize how events are handled and prioritized across different sites through Event Policies. An organization that requires
"elevated incident notifications" for a critical site like its headquarters needs a way to differentiate those alerts from standard branch notifications in the management portal and integrated third-party tools.
The most direct and effective method to achieve this is by configuring an Event Policy Rule specifically for the headquarters site. Within the incident policy framework, administrators can create rules that match specific resources-in this case, the headquarters site-and apply an action to set the priority. Priority levels typically range from P1 (highest) to P5 (lowest).1 By setting these to the highest level (P1), any generated incident for that site will immediately stand out on the dashboard as a high-priority event.
This approach is superior to other options because it changes the inherent importance of the alert within the Prisma SD-WAN logic itself. For example, a "WAN Link Down" event at a small retail branch might be a P3, but the same event at the HQ could be elevated to a P1 via a custom policy rule. This elevation ensures that the Network Operations Center (NOC) is alerted more urgently and that external integrations, such as ServiceNow or PagerDuty, receive the correct priority mapping for immediate escalation. Options such as aggressive SLA thresholds (Option B) only increase the frequency of alerts, not necessarily their notification priority, while global syslog or SNMP settings (Options A and D) lack the site-specific granularity required for this use case.

88. Frage
When defining a Path Quality Profile (SLA) for a "Transactional" application group (e.g., Citrix, Oracle), the administrator sets the "Packet Loss" threshold to 1%.
What happens to the traffic for this application if all active paths currently exceed this 1% loss threshold?
  • A. The traffic is queued indefinitely until a path recovers.
  • B. The system automatically enables a Backup path, even if the Active paths are technically "Up" but degraded.
  • C. The system selects the best available path (lowest loss) among the active paths, even if it violates the profile.
  • D. The traffic is dropped to prevent data corruption.
Antwort: C
Begründung:
Comprehensive and Detailed Explanation
This behavior describes the "Best Available Path" logic inherent in Prisma SD-WAN's availability design.
SLA Thresholds: Path Quality Profiles act as filters to identify compliant paths.
Total Violation: If all configured "Active" paths violate the SLA (e.g., Path A has 2% loss, Path B has 5% loss, and the threshold is 1%), the system does not drop the traffic (Option A) because maintaining connectivity is prioritized over perfect quality.
Selection Logic: The system enters a fallback state where it compares the available active paths and selects the "Least Bad" one-the path that is closest to meeting the SLA (in this case, Path A with 2% loss).
Backup Paths: Traffic would only move to a Backup path (Option D) if the policy explicitly configures the backup path to engage upon SLA violation of the active set. However, strictly speaking, if only active paths are considered and all fail, it picks the best of the active group rather than blackholing the traffic.

89. Frage
Which troubleshooting step should be taken when users at a branch site are experiencing a maximum throughput of 200 Mbps for Direct Internet Access (DIA) traffic on a 1 Gbps internet connection?
  • A. Ensure the WAN interface is set to 1 Gbps or auto mode.
  • B. Ensure performance policy is applied to the site.
  • C. Ensure the circuit configuration at the site level is properly set.
  • D. Ensure QoS policy is applies to the site.
Antwort: C
Begründung:
In Prisma SD-WAN, the effective throughput for any given circuit is fundamentally dictated by the Circuit Configuration defined at the site level. When a branch experiences a "throughput ceiling" (e.g., traffic capped at 200 Mbps on a 1 Gbps physical link), the most likely cause is that the software-defined bandwidth limit for that circuit has been set incorrectly in the Prisma SD-WAN Controller.
Prisma SD-WAN ION devices do not simply forward traffic at the maximum physical line rate by default; they rely on the administrator-defined Upstream and Downstream bandwidth values to perform traffic shaping, policing, and path selection. If a circuit is physically capable of 1 Gbps but is configured in the portal as having only 200 Mbps, the ION device will enforce this 200 Mbps limit to prevent oversubscribing the link and to ensure that Quality of Service (QoS) and path selection calculations remain accurate based on the assumed capacity.
To resolve this, an engineer must navigate to the Site Configuration, locate the specific WAN circuit, and verify that the bandwidth settings match the actual service provider's handoff. If these values are set lower than the actual link speed, the device will artificially throttle the traffic. While ensuring the WAN interface is set to the correct speed/duplex (Option B) is a valid physical layer check, and QoS/Performance policies (Options A and C) manage how that bandwidth is used, it is the Circuit Configuration that defines the total available bandwidth for the SD-WAN fabric to utilize. Correcting this configuration allows the ION device to scale its throughput to match the full 1 Gbps capability of the broadband connection.

90. Frage
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