Valid SD-WAN-Engineer Test Notes & Test SD-WAN-Engineer Questions Answers

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Palo Alto Networks SD-WAN-Engineer Exam Syllabus Topics:

Topic	Details
Topic 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.
Topic 2	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.
Topic 3	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.
Topic 4	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.
Topic 5	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.

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Palo Alto Networks SD-WAN Engineer Sample Questions (Q77-Q82):

NEW QUESTION # 77
An administrator needs to generate a monthly report showing the "Top Applications" by bandwidth usage across all branch sites to justify a bandwidth upgrade.
Which specific component of the Prisma SD-WAN interface is designed to create, schedule, and email these PDF summaries?

A. Reports
B. Activity Charts
C. Media Analytics
D. Flow Browser

Answer: A

Explanation:
Comprehensive and Detailed Explanation
Prisma SD-WAN separates real-time visibility from historical summarization.
* Reports (C): The Reports section is the dedicated engine for generating historical summaries.
Administrators can create custom report templates (e.g., "Monthly Executive Summary") that include specific widgets like "Top Applications by Volume," "Site Availability," or "Circuit Utilization." Crucially, this feature allows for Scheduling, where the system automatically generates the PDF report at a set interval (e.g., first day of the month) and emails it to a distribution list.
* Activity Charts (A) / Media Analytics (B): These provide interactive, visual graphs for ad-hoc analysis but are not designed for generating downloadable, scheduled PDF summaries for management.
* Flow Browser (D): This is for deep-dive troubleshooting of individual sessions, not for high-level aggregate reporting.

NEW QUESTION # 78
A remote branch site is reporting intermittent connectivity to the Data Center. The administrator checks the System > Alarms page and sees a "VPN_DOWN" alarm for the tunnel to the DC. However, the internet circuit status is "Up".
Which specific log file or diagnostic tool in the Prisma SD-WAN portal would provide the IKE (Internet Key Exchange) error codes (e.g., "NO_PROPOSAL_CHOSEN" or "AUTH_FAILED") to pinpoint the cause of the tunnel failure?

A. Event Logs > System
B. Link Quality Graphs
C. Site Summary > Topology
D. Flow Browser

Answer: A

Explanation:
Comprehensive and Detailed Explanation
To diagnose specific VPN negotiation failures (Phase 1 or Phase 2 IPSec issues), the Event Logs (specifically filtered for System or VPN events) are the correct resource.
Event Logs: This section records the control plane signaling messages. If a VPN tunnel fails to establish, the Event Log will generate an entry containing the specific IKE failure reason sent by the peer or generated locally. Common errors found here include INVALID_COOKIE, NO_PROPOSAL_CHOSEN (mismatch in encryption algorithms), or PRE_SHARED_KEY_MISMATCH.
Flow Browser (A): This shows user traffic (TCP/UDP sessions). If the VPN is down, user traffic won't even enter the tunnel, so the Flow Browser will just show dropped flows or blackholes, but it won't explain why the tunnel itself is broken.
Link Quality (D): This shows latency/loss graphs for established tunnels. It cannot diagnose why a tunnel failed to form in the first place.

NEW QUESTION # 79
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 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.
B. 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.
C. 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.
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.

Answer: D

Explanation:
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.

NEW QUESTION # 80
When using the CloudBlade to integrate Prisma SD-WAN with Prisma Access, how does the system ensure that the IPSec tunnels between the branch ION and the Prisma Access Security Processing Node (SPN) are kept alive during periods of no user traffic?

A. The administrator must configure a continuous ping script on a branch PC.
B. The IPSec tunnel uses standard DPD (Dead Peer Detection) and the ION sends keepalives.
C. The CloudBlade automatically configures the ION to send Synthetic Probes (ICMP/HTTP) across the tunnel.
D. Prisma Access initiates the connection to the branch every 60 seconds.

Answer: B

Explanation:
Comprehensive and Detailed Explanation
The stability of VPN tunnels in the Prisma SD-WAN + Prisma Access integration relies on standard IPSec mechanisms.
Dead Peer Detection (DPD): The CloudBlade configuration automatically enables DPD on the IPSec tunnels it provisions.
Mechanism: DPD is a standard keepalive mechanism where the ION device sends periodic "R-U-THERE" messages to the Prisma Access gateway (and vice versa). If no acknowledgment is received after a specific count/timer, the ION marks the tunnel as down and attempts to re-key or switch to a backup path.
Synthetic Probes (B): While Synthetic Probes (part of ADEM or Path Quality monitoring) can be configured to measure latency/loss, the fundamental mechanism that keeps the IPSec security association (SA) active and detects link failure is DPD, not an application-layer probe.

NEW QUESTION # 81
When allocating Aggregate Bandwidth for a Prisma Access "Remote Network" deployment (connecting 50 branch sites), how is the bandwidth license enforced?

A. The bandwidth is shared as a pool across all sites in a specific Compute Location (Region); individual sites can burst up to the available pool capacity.
B. Each branch site is hard-capped at the specific bandwidth limit defined in its individual IPSec tunnel configuration.
C. The bandwidth is allocated per device serial number and cannot be shared.
D. The bandwidth license is only checked once during the initial onboarding; there is no ongoing enforcement.

Answer: A

Explanation:
Comprehensive and Detailed Explanation
Prisma Access manages Remote Network bandwidth using an Aggregate Bandwidth licensing model.
Compute Locations: When you purchase bandwidth (e.g., 1 Gbps), you allocate it to specific Prisma Access Compute Locations (e.g., US West, Europe Central).
Shared Pool: All branch sites (Remote Networks) that connect to that specific Compute Location share the allocated bandwidth pool. For example, if you allocate 500 Mbps to "US West" and connect 10 branches to it, they compete for that 500 Mbps aggregate.
Bursting: An individual branch is not strictly rate-limited to a "slice" (e.g., 50 Mbps) unless you explicitly configure QoS guarantees. By default, a single branch can burst and consume a large portion of the aggregate pool if other branches are idle. The enforcement happens at the Region/Compute Node level, ensuring the total throughput does not exceed the licensed capacity for that region.

NEW QUESTION # 82
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