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NEW QUESTION # 21
Which IONs can support Branch Gateway?
Answer: B
Explanation:
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.
NEW QUESTION # 22
For how many hours are Prisma SD-WAN VPN shared secrets valid?
Answer: C
Explanation:
Comprehensive and Detailed Explanation at least 150 to 250 words each from Palo Alto Networks SD-WAN Engineer documents:
In the Prisma SD-WAN architecture, security is built directly into the AppFabric using a centralized, controller-led approach to key management. Unlike traditional VPNs that rely on manual Internet Key Exchange (IKE) or static Pre-Shared Keys (PSKs) which can be administratively burdensome and security-vulnerable, Prisma SD-WAN automates the entire lifecycle of encrypted tunnels. The Prisma SD-WAN Controller acts as the central authority for identity and key distribution for all ION (Instant-On Network) devices within the tenant's fabric.
Specifically, the VPN shared secrets used to secure these tunnels are ephemeral and are valid for exactly 24 hours. This 24-hour validity period is a security best practice implemented by Palo Alto Networks to limit the "blast radius" or window of exposure in the unlikely event that a key is compromised. The controller automatically handles the generation, distribution, and rotation of these secrets. Before the 24-hour timer expires, the controller pushes new keys to the ION devices, which then perform a hitless rollover. This ensures that the data plane remains active and encrypted without requiring manual intervention from a network administrator. If an ION device loses its control plane connection to the controller, it will maintain its existing tunnels using the current keys until they expire, at which point it must re-authenticate with the controller to receive a new set of valid secrets. This automated rotation is a core component of the Prisma SD-WAN Zero-Trust security model.
NEW QUESTION # 23
Which action meets the needs of an organization that requires elevated incident notifications for its headquarters location?
Answer: C
Explanation:
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.
NEW QUESTION # 24
There are periodic complaints about the poor performance of a real-time application.
What can be inferred about the performance issue, based on the Network Transfer Time (NTT) and Server Response Time (SRT) image below?
Answer: B
Explanation:
In Prisma SD-WAN, application performance is monitored through distinct metrics that separate network health from application health. The provided graph displays Network Transfer Time (NTT) in blue and Server Response Time (SRT) in orange. NTT measures the round-trip time of packets traversing the WAN fabric, while SRT measures the time elapsed from when the server receives a request to when it sends the first response packet.
Analysis of the telemetry data shows that the NTT (blue line) remains consistently low and stable, generally staying below 100 milliseconds throughout the capture period. This indicates that the SD-WAN path and underlying network circuits are not the source of the latency. Conversely, the SRT (orange line) exhibits significant and erratic spikes, reaching as high as 450 to 475 milliseconds. These spikes occur while the network latency (NTT) remains flat.
Because the latency increases are isolated to the SRT metric, the root cause is confirmed to be on the Application Server side. This pattern typically suggests that the server is struggling with resource exhaustion, high CPU utilization, or database query delays during peak processing times. For a real-time application, these SRT spikes translate directly to jitter and "lag" for the end-user. By distinguishing between these two metrics, Prisma SD-WAN allows network administrators to prove that the network is performing within SLA and shift the troubleshooting focus to the application or server management teams, significantly reducing mean time to innocence (MTTI).
NEW QUESTION # 25
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?
Answer: C
Explanation:
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.
NEW QUESTION # 26
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