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NEW QUESTION # 26
A site has two internet circuits: Circuit A with 500 Mbps capacity and Circuit B with 100 Mbps capacity.
Which path policy configuration will ensure traffic is automatically shifted from a saturated circuit to the circuit with available bandwidth?
- A. Circuit B as an L3 failure path
- B. Circuit A as an active, Circuit B as a backup
- C. Both circuits under active path
- D. Circuit B as an active, Circuit A as a backup
Answer: C
Explanation:
Comprehensive and Detailed Explanation
In Prisma SD-WAN (CloudGenix), Path Policies control how application traffic is steered across WAN links.
To ensure that traffic is automatically shifted from a saturated circuit to another circuit with available bandwidth, both circuits must be configured as Active Paths within the policy rule.
When multiple paths are designated as "Active," the ION device treats them as a shared pool of available resources. The system continuously monitors the bandwidth utilization (capacity) and health (latency, jitter, loss) of all active links. If "Circuit A" (500 Mbps) becomes saturated or approaches its defined bandwidth limit, the ION's intelligent scheduler will automatically direct new application flows to "Circuit B" (100 Mbps) because it is a valid, healthy Active path with available capacity. This achieves effective load balancing and bandwidth aggregation.
In contrast, configuring "Circuit B" as a Backup Path (Option A or B) creates a strict priority relationship.
Traffic would only move to the Backup path if the Active path completely failed or violated its configured SLA (Path Quality Profile) significantly enough to be considered "down." Mere bandwidth saturation might not trigger an SLA failure immediately, potentially leading to dropped packets on the saturated link while the backup link remains idle. Therefore, placing Both circuits under active path is the correct configuration for dynamic capacity management.
NEW QUESTION # 27
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. Once a site has been deployed using a template, its configuration can be updated or modified by applying an updated version of the template.
- B. The use of Jinja conditional statements within a site template is not supported, thereby limiting dynamic customization options.
- C. Site templates offer the capability to pre-stage device configurations by creating a device shell.
- D. Mandatory variables for any site template include the site name, ION software version, and at least one ION serial number /device name pair.
Answer: C,D
Explanation:
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.
NEW QUESTION # 28
When planning a software upgrade for a large fleet of ION devices, what is the recommended best practice regarding the "Software Version" assigned in the Site Summary?
- A. Assign the new software version to the "Global" site configuration to upgrade all 1000+ sites simultaneously.
- B. Manually log into each device and upload the new image file via USB.
- C. Use Site Tags to group sites (e.g., "Pilot", "Region-1", "Region-2") and assign the new software version incrementally to these tags to minimize risk.
- D. The ION devices upgrade themselves automatically whenever a new version is released by Palo Alto Networks.
Answer: C
Explanation:
Comprehensive and Detailed Explanation
The best practice for managing upgrades in a large-scale Prisma SD-WAN environment is the Canary or Phased Rollout approach, utilizing Site Tags.
Risk Mitigation: Upgrading all sites simultaneously (Option B) is highly risky. If the new software version has an unforeseen bug or compatibility issue with a specific circuit type, the entire network could face an outage.
Tag-Based Management: Administrators should create tags such as "Upgrade-Phase-1" (Pilot sites) or "Region-North". By assigning the specific Software Version to the Tag (rather than the individual site or the global default), the controller pushes the update only to that subset of devices.
Procedure:
Apply update to "Pilot" tag (5 sites). Monitor for 24-48 hours.
Apply update to "Region-1" tag (50 sites). Monitor.
Eventually, update the Global default once confidence is high.
Option A is unscalable, and Option D is incorrect as the administrator retains full control over when upgrades occur; they are not forced automatically without policy configuration.
NEW QUESTION # 29
An ION 3000 device at a remote branch has suffered a critical hardware failure and must be replaced via the RMA process. The administrator has received the replacement unit.
What is the correct procedure to transfer the configuration and license from the defective unit to the replacement unit to ensure minimal downtime and retention of historical data?
- A. Delete the old device from the portal, create a new site for the replacement device, and rebuild the policies manually.
- B. Use the "Replace Device" workflow in the Prisma SD-WAN portal, which automatically transfers the configuration (Device Shell) and re-associates the site to the new serial number.
- C. Backup the configuration of the old device to a USB drive and restore it to the new device using the local console.
- D. Manually configure the new device from scratch, then open a support ticket to transfer the license.
Answer: B
Explanation:
Comprehensive and Detailed Explanation
The RMA replacement process in Prisma SD-WAN is designed to be seamless, leveraging the decoupling of logical configuration from physical hardware.
Replace Device Workflow: The administrator should use the "Replace Device" (or RMA) function within the portal. This workflow allows you to select the "Defective" device (old serial) and the "Replacement" device (new serial).
Configuration Transfer: Once executed, the system automatically binds the existing Device Shell (which contains all interface configs, routing policies, and site associations) to the new hardware's serial number. The new device, once connected to the internet, will "call home," identify itself, and download the exact configuration of the previous unit.
License Transfer: While the configuration moves automatically, the Support License transfer typically requires a specific step in the Customer Support Portal (CSP) or happens automatically if processed as a formal RMA order. Options A and D are incorrect because they involve manual reconfiguration, which is unnecessary and error-prone. Option C is incorrect as the ION platform relies on cloud-based config management, not local USB backups for hardware swaps.
NEW QUESTION # 30
A network engineer is troubleshooting a user complaint regarding "slow application performance" for an internal web application. While viewing the Flow Browser in the Prisma SD-WAN portal, the engineer notices that the Server Response Time (SRT) is consistently high (over 500ms), while the Network Transfer Time (NTT) and Round Trip Time (RTT) are low (under 50ms).
What does this data indicate about the root cause of the issue?
- A. The issue is caused by a high packet loss rate on the internet path.
- B. The issue is due to a misconfigured DNS server at the branch.
- C. The issue is likely caused by congestion on the WAN circuit, requiring a QoS policy adjustment.
- D. The issue is likely on the application server itself (e.g., high CPU, slow database query), not the network.
Answer: D
NEW QUESTION # 31
A network administrator is troubleshooting a critical SaaS application, "SuperSaaSApp", that is experiencing connectivity issues. Initially, the configured active and backup paths for the application were reported as completely down at Layer 3. The Prisma SD-WAN system attempted to route traffic for the application over an L3 failure path that was explicitly configured as a Standard VPN to Prisma Access.
However, users are still reporting a complete outage for the application and monitoring tools show application flows being dropped when attempting to use the Standard VPN L3 failure path, even though the tunnel itself appears to be up. The administrator suspects a policy misconfiguration related to how the Standard VPN path interacts with destination groups.
What is the most likely reason for flows being dropped when attempting to use the Standard VPN L3 failure path?
- A. The path policy rule explicitly designates a Standard VPN as the L3 failure path, but it does not include a designated Standard Services and DC Group, causing traffic to be dropped.
- B. The "Move Flows Forced" action was not enabled in the performance policy for "SuperSaaSApp", preventing the system from actively shifting traffic to the L3 failure path.
- C. The path policy rule for "SuperSaaSApp" has the "Required" checkbox selected for its Service & DC Group, but no direct paths were configured alongside it, creating a conflict.
- D. The Standard VPN in the path policy was not configured to "Minimize Cellular Usage", leading to the depletion of metered data and subsequent flow drops.
Answer: A
Explanation:
Comprehensive and Detailed Explanation
According to Palo Alto Networks Prisma SD-WAN administrator documentation regarding Path Policy configuration, specific rules apply when utilizing Standard VPNs (IPSec tunnels to non-ION devices, such as Prisma Access or third-party firewalls) as an L3 Failure Path.
When a Path Policy rule is configured, the administrator defines Active Paths, Backup Paths, and L3 Failure Paths. The L3 Failure Path is a "last resort" mechanism used when all Active and Backup paths are unavailable (Layer 3 down).
If Standard VPN is selected as the L3 Failure Path type, the system explicitly requires that the administrator also associates it with a specific Standard Services and DC Group within that same policy rule.
The ION device uses the Standard Services and DC Group to identify the specific remote endpoint (tunnel destination) where the traffic should be routed. Unlike a "Direct" (Internet) path which can simply route out to the WAN, a Standard VPN represents a logical tunnel. If the policy rule designates "Standard VPN" as the failure path but leaves the "Standard Services and DC Group" field empty or unselected, the ION effectively has a directive to "use a VPN" but lacks the instruction on which VPN group to use for this specific application context. Consequently, even if the IPSec tunnel to Prisma Access is physically up and stable, the policy engine cannot resolve the next hop for the "SuperSaaSApp" traffic, resulting in the packets being dropped. To resolve this, the administrator must edit the Path Policy rule to ensure the specific Standard Service/DC Group representing Prisma Access is checked/selected for the L3 Failure Path.
NEW QUESTION # 32
1000 branches are to be deployed on Prisma SD-WAN with the following constraints:
* Devices will be shipped in batches directly to the site
* Configuration Management Database (CMDB) has all the necessary details for a site deployment
* Field tech will be responsible for rack, stack, and cabling of the IONs at each site
* Field tech will need to spend minimum amount of time at each branch site to reduce the cost
* The NOC operates in shifts and is responsible for remote cutover support Which method will achieve the mass deployment in shortest possible time?
- A. Connect the ION to the LAN switch to bring it online, configure the device using the legacy network, connect the ISP modem or cellular, and cutover the site once the ION is configured.
- B. Connect the device to the ISP modem or use cellular, use Prisma SD-WAN Software Development Kit (SDK) using API method for site deployment once the device is online, connect the LAN switch to the ION.
- C. Use site templates and device shells to pre-create the configuration using CSV bulk upload, connect the device to the ISP modem or using cellular, assign the device to the template when device is online, and connect the LAN switch to the ION.
- D. Connect the device to the ISP modem or use cellular, use device shell to pre-create the configuration for a site, assign the device to the template when device is online, and connect the LAN switch to the ION.
Answer: C
Explanation:
For a massive rollout involving 1,000 branch sites, Prisma SD-WAN (formerly CloudGenix) provides a specialized workflow known as Bulk Site Configuration. This method is designed to minimize manual intervention and maximize deployment velocity by leveraging Site Templates and Device Shells.
In this scenario, the primary architectural advantage of Option C is the use of Pre-Staging. By exporting an empty SD-WAN device CSV from the Prisma SD-WAN Controller and populating it with data from the corporate CMDB, administrators can perform a bulk upload to create hundreds or thousands of sites and device shells simultaneously in the management portal. A "Device Shell" acts as a placeholder for a physical ION device that has not yet connected to the cloud. It contains all the site-specific configuration-such as interface roles, circuit labels, and IP addressing-waiting for a serial number to be associated with it.
When the field technician performs the physical "rack and stack," they simply connect the ION device to the internet (via ISP modem or cellular). Through Zero Touch Provisioning (ZTP), the device automatically
"phones home" to the Prisma SD-WAN Cloud Controller using its Manufacturer Installed Certificate (MIC).
Because the configuration was pre-created via the CSV bulk upload, the controller recognizes the device (once assigned to its shell) and immediately pushes the complete configuration. This eliminates the need for the field tech to access a console port or perform local configuration, reducing their on-site time to the bare minimum. While APIs (Option D) can be used for automation, the built-in CSV template workflow is the standard, documented "best practice" for rapidly translating CMDB data into a functioning SD-WAN fabric at this scale.
NEW QUESTION # 33
Which configuration requirement must be met to allow two branch ION devices to automatically establish a direct Dynamic VPN (branch-to-branch) connection for traffic flow, bypassing the Data Center?
- A. The Data Center ION must be offline to trigger the dynamic failover.
- B. A static "Gre Tunnel" must be manually configured between the two sites.
- C. The "Standard VPN" path policy must be selected.
- D. Both ION devices must be members of the same VPN Cluster.
Answer: D
Explanation:
Comprehensive and Detailed Explanation
Dynamic VPNs (also known as ION-to-ION or Branch-to-Branch VPNs) allow Prisma SD-WAN devices to establish direct, on-demand secure tunnels between branch sites to optimize latency for peer-to-peer traffic (e.
g., VoIP calls between offices).
To enable this capability, the primary architectural requirement is the configuration of VPN Clusters.
A VPN Cluster defines a logical group of devices that are authorized to communicate with one another.
* By default, or if devices are in different clusters without peering, the topology typically defaults to Hub- and-Spoke, where branches only talk to the Data Center.
* When two branch ION devices are placed into the same VPN Cluster (or peered clusters), the controller shares the necessary reachability and cryptographic information between them.
Once in the same cluster, the ION devices monitor traffic. If a user at Branch A tries to contact a server at Branch B, the ION devices detect this interest. If a direct path is available (e.g., via public internet), they will dynamically negotiate a direct VPN tunnel, bypassing the Data Center hub. This offloads the hub and reduces latency. Option B is incorrect because SD-WAN eliminates manual GRE config. Option C is incorrect because dynamic VPNs are a performance feature, not just a disaster recovery feature.
NEW QUESTION # 34
When configuring SASE connectivity with easy onboarding at a branch, which two options must be selected?
(Choose two.)
- A. IPSec Crypto Profile
- B. IPSec Termination Node
- C. Prisma Access Primary Location
- D. Prisma Access IKE Profile
Answer: B,C
Explanation:
Prisma SD-WAN simplifies the integration with Prisma Access through a feature known as "CloudBlades," specifically the Prisma Access for Networks CloudBlade. The "easy onboarding" workflow is designed to automate the complex task of establishing secure tunnels between Branch ION devices and the SASE security processing nodes (SPNs).
When an administrator initiates this process, the system abstracts the manual configuration of IKE and IPSec parameters. Instead of manually defining an IPSec Crypto Profile or an IKE Profile (which are automatically handled by the CloudBlade orchestration), the user must specify where the traffic is going and which physical resources will handle the connection. The Prisma Access Primary Location (Option B) is a mandatory selection because it determines the geographical region and specific compute instance within the Prisma Access cloud that will serve as the primary security gateway for that branch.
Furthermore, the IPSec Termination Node (Option D) must be selected to define the specific endpoint within the Prisma Access infrastructure where the ION device's tunnels will terminate. This selection ensures that the Controller can properly orchestrate the site-to-site VPN tunnels, ensuring that the branch traffic is correctly routed to the SASE fabric for security inspection. By selecting these two options, the CloudBlade can automatically negotiate the rest of the tunnel parameters, significantly reducing the potential for human error and accelerating the deployment of a Secure Access Service Edge (SASE) architecture across multiple branch locations.
NEW QUESTION # 35
When integrating Prisma SD-WAN with Prisma Access, what is the specific role of the Service Connection (SC)?
- A. It is the IPSec tunnel that connects a Branch site to the Prisma Access gateway for internet access.
- B. It connects the Prisma Access cloud infrastructure back to the customer's Headquarters or Data Center for access to internal private resources (e.g., AD, DNS, Intranet).
- C. It is the peering link between different Prisma Access regions to optimize global traffic.
- D. It is the SSL VPN portal used by mobile users to connect to the network.
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 # 36
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?
- A. First-In, First-Out (FIFO)
- B. Strict Priority Queuing (SPQ)
- C. Hierarchical Token Bucket (HTB) with guaranteed bandwidth
- D. Weighted Round Robin (WRR)
Answer: C
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 # 37
An ION 3000 device at a remote branch has suffered a critical hardware failure and must be replaced via the RMA process. The administrator has received the replacement unit.
What is the correct procedure to transfer the configuration and license from the defective unit to the replacement unit to ensure minimal downtime and retention of historical data?
- A. Delete the old device from the portal, create a new site for the replacement device, and rebuild the policies manually.
- B. Use the "Replace Device" workflow in the Prisma SD-WAN portal, which automatically transfers the configuration (Device Shell) and re-associates the site to the new serial number.
- C. Backup the configuration of the old device to a USB drive and restore it to the new device using the local console.
- D. Manually configure the new device from scratch, then open a support ticket to transfer the license.
Answer: B
Explanation:
Comprehensive and Detailed Explanation
The RMA replacement process in Prisma SD-WAN is designed to be seamless, leveraging the decoupling of logical configuration from physical hardware.
* Replace Device Workflow: The administrator should use the "Replace Device" (or RMA) function within the portal. This workflow allows you to select the "Defective" device (old serial) and the
"Replacement" device (new serial).
* Configuration Transfer: Once executed, the system automatically binds the existing Device Shell (which contains all interface configs, routing policies, and site associations) to the new hardware's serial number. The new device, once connected to the internet, will "call home," identify itself, and download the exact configuration of the previous unit.
* License Transfer: While the configuration moves automatically, the Support License transfer typically requires a specific step in the Customer Support Portal (CSP) or happens automatically if processed as a formal RMA order. Options A and D are incorrect because they involve manual reconfiguration, which is unnecessary and error-prone. Option C is incorrect as the ION platform relies on cloud-based config management, not local USB backups for hardware swaps.
NEW QUESTION # 38
For how many hours are Prisma SD-WAN VPN shared secrets valid?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
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 # 39
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 CloudBlade automatically configures the ION to send Synthetic Probes (ICMP/HTTP) across the tunnel.
- B. The administrator must configure a continuous ping script on a branch PC.
- C. Prisma Access initiates the connection to the branch every 60 seconds.
- D. The IPSec tunnel uses standard DPD (Dead Peer Detection) and the ION sends keepalives.
Answer: D
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 # 40
Which condition, when configured within a performance policy, is a trigger for generating an incident related to application performance or path degradation?
- A. Violation of defined service-level agreement (SLA) thresholds for application performance or link quality.
- B. Physical WAN interface transitioning from an "up" to a "down" state, resulting in a NETWORK_ANYNETLINK_DOWN event.
- C. Exceeding the configured threshold for total concurrent flows in the ION device, resulting in a SYSTEM_CONCURRENT_FLOW_THRESHOLD_EXCEEDED incident.
- D. Loss of a BGP peering session on a data center ION device, leading to potential routing instability.
Answer: A
Explanation:
In Prisma SD-WAN, Performance Policies are the primary mechanism used to define the expected quality of experience for specific applications. Unlike traditional monitoring that relies solely on "up/down" interface states, Prisma SD-WAN focuses on the actual health of the application path. An incident is triggered when the system detects a violation of defined service-level agreement (SLA) thresholds, such as excessive latency, jitter, or packet loss, even if the physical link remains active.
When an administrator configures a performance policy, they set specific bounds for these metrics. For example, a VoIP application might have an SLA requiring latency below 150ms and packet loss below 1%. If the ION device detects that the current path (e.g., a broadband circuit) exceeds these limits, it generates a performance incident. This incident serves two purposes: first, it alerts the administrator to the degradation; second, it triggers the Path Selection engine to proactively steer the application traffic to a more suitable
"Backup" or "Available" path that currently meets the SLA requirements.
Options B, C, and D represent system-level or network-level events that generate different types of alerts or incidents (System or Network incidents), but they are not the triggers defined within a Performance Policy.
Performance policies are specifically concerned with the application's perceived performance across the fabric. By focusing on SLA violations rather than just physical link status, Prisma SD-WAN ensures that business-critical applications remain functional even during "brownout" conditions where a circuit is technically "up" but performing poorly.
NEW QUESTION # 41
What is the purpose of Secure Group Tag (SGT) propagation in Prisma SD-WAN?
- A. To clarify the intent of rules or configuration objects and improve rule organization
- B. To integrate with external identity-based security solutions
- C. To manage QoS policies for traffic based on user and application type
- D. To enable or disable SGT settings at the interface level and initiate services like NTP, DHCP, and App Probes
Answer: B
Explanation:
In modern enterprise environments, maintaining a consistent security posture across disparate network domains is a major challenge. Prisma SD-WAN addresses this by supporting Secure Group Tag (SGT) propagation. SGTs are a key component of Cisco's TrustSec architecture, used to classify traffic based on the identity of the source (users, devices, or groups) rather than just IP addresses. By supporting SGT propagation, Prisma SD-WAN allows organizations to integrate with external identity-based security solutions seamlessly.
When traffic enters an ION device from a LAN segment where SGTs are already applied (typically by an access layer switch or an Identity Services Engine), the ION device can be configured to preserve or
"propagate" these tags as the traffic traverses the SD-WAN fabric.6 This ensures that the identity context remains intact even after the traffic has crossed the WAN.7 When the traffic reaches its destination-whether that is a data center, another branch, or a security gateway-the receiving device can use the SGT to enforce granular security policies.
This integration is vital for organizations moving toward a Zero Trust architecture. Instead of rewriting complex firewall rules at every hop, the SGT acts as a portable identity badge. Prisma SD-WAN's ability to handle these tags allows it to participate in a larger security ecosystem, ensuring that a "Finance" user is treated with the same security restrictions at a remote branch as they would be at the corporate headquarters.
This eliminates the need for manual IP-to-Group mapping across the WAN, reducing administrative overhead and minimizing the risk of security gaps during lateral movement of traffic.
NEW QUESTION # 42
The UI triggers incident DEVICESW_CONCURRENT_FLOWLIMIT_EXCEEDED for a branch site. Based in the image below, which tool can be used to identify the host?
- A. Monitor # Activity # New flows
- B. Monitor # Activity # Transaction Stats
- C. Run tcpdump under the LAN interface
- D. Monitor # Activity # Flows
Answer: D
Explanation:
When a Prisma SD-WAN ION device triggers the
DEVICESW_CONCURRENT_FLOWLIMIT_EXCEEDED incident, it indicates that the number of active sessions has reached the hardware or software-defined capacity limit of that specific appliance. In the provided graph, we can see a massive spike in concurrent TCP flows on May 13th, reaching nearly 500k, which is a clear indicator of anomalous behavior-likely a "top talker" host, a malware outbreak, or a misconfigured application generating excessive connections.
To identify the specific host responsible for this surge, administrators should navigate to Monitor # Activity
# Flows. This interface, commonly known as the Flow Browser, provides the most granular visibility into real-time and historical session data within the Prisma SD-WAN fabric. Unlike "Transaction Stats," which provide high-level summaries, or "New Flows," which only show the rate of session initiation, the Flows view allows an engineer to filter and sort the active session table by metadata such as Source IP, Destination IP, Application, and Site.
By utilizing the Flow Browser, an administrator can quickly group flows by "Source IP" to pinpoint exactly which internal host is consuming the most flow table entries. This is the standard "Day 2" operational workflow for troubleshooting performance and capacity incidents. While running a tcpdump (Option A) is a valid diagnostic for packet-level analysis, it is inefficient for identifying a single host among hundreds of thousands of flows and can further tax the device's CPU during a high-load event. The Monitor # Activity # Flows tool is designed specifically for this type of scale, providing the necessary visibility to remediate the flow limit exhaustion and restore normal network operations.
NEW QUESTION # 43
Which metrics can be monitored at the individual Prisma SD-WAN ION device level to assess its health and operational performance?
- A. Device VPN tunnels and controller reachability status
- B. Device CPU, memory and disk use, interface bandwidth, and errors/discards
- C. Device application flow statistics, Autonomous Digital Experience Manager (ADEM) metrics, and site health score
- D. Device software version and interface bandwidth
Answer: B
Explanation:
To ensure the stability and performance of the SD-WAN fabric, Prisma SD-WAN provides granular visibility into the health of each Instant-On Network (ION) appliance. While the solution is primarily application- defined, monitoring the underlying physical and system resources of the hardware or virtual instance is critical for proactive maintenance and troubleshooting.
At the individual device level, administrators can monitor system resource utilization, which includes CPU usage, memory (RAM) consumption, and disk space availability.1 High CPU or memory usage can indicate that the device is reaching its throughput limits or that a specific process (such as deep packet inspection) is overtaxing the system. Disk utilization is monitored to ensure there is sufficient space for local logs and system operations.
Beyond internal system health, interface-level metrics are essential. This includes monitoring interface bandwidth utilization to identify bottlenecks on WAN or LAN ports. Crucially, operational performance is also assessed through error and discard counters on each interface. High error rates or frequent packet discards often signal physical layer issues (like bad cabling), duplex mismatches, or upstream provider congestion. While VPN status and application flows are vital for network-wide visibility, the core health of an ION device is defined by these foundational system and interface metrics.
Monitoring these specific parameters allows network engineers to distinguish between an application performance issue caused by network latency and one caused by a local hardware resource constraint.
NEW QUESTION # 44
An ION 3000 device at a remote branch has suffered a critical hardware failure and must be replaced via the RMA process. The administrator has received the replacement unit.
What is the correct procedure to transfer the configuration and license from the defective unit to the replacement unit to ensure minimal downtime and retention of historical data?
- A. Delete the old device from the portal, create a new site for the replacement device, and rebuild the policies manually.
- B. Use the "Replace Device" workflow in the Prisma SD-WAN portal, which automatically transfers the configuration (Device Shell) and re-associates the site to the new serial number.
- C. Backup the configuration of the old device to a USB drive and restore it to the new device using the local console.
- D. Manually configure the new device from scratch, then open a support ticket to transfer the license.
Answer: B
Explanation:
Comprehensive and Detailed Explanation
The RMA replacement process in Prisma SD-WAN is designed to be seamless, leveraging the decoupling of logical configuration from physical hardware.
* Replace Device Workflow: The administrator should use the "Replace Device" (or RMA) function within the portal. This workflow allows you to select the "Defective" device (old serial) and the
"Replacement" device (new serial).
* Configuration Transfer: Once executed, the system automatically binds the existing Device Shell (which contains all interface configs, routing policies, and site associations) to the new hardware's serial number. The new device, once connected to the internet, will "call home," identify itself, and download the exact configuration of the previous unit.
* License Transfer: While the configuration moves automatically, the Support License transfer typically requires a specific step in the Customer Support Portal (CSP) or happens automatically if processed as a formal RMA order. Options A and D are incorrect because they involve manual reconfiguration, which is unnecessary and error-prone. Option C is incorrect as the ION platform relies on cloud-based config management, not local USB backups for hardware swaps.
NEW QUESTION # 45
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 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 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.
- D. 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.
Answer: C
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 # 46
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?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
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 # 47
A network administrator is viewing the Flow Browser to investigate a report that a specific user cannot access an internal web server. The flow entry for this traffic shows the "Flow State" as "INIT" and it remains in that state until it times out.
What does the "INIT" state indicate about the traffic flow?
- A. The flow was denied by a Zone-Based Firewall policy on the ION.
- B. The TCP 3-way handshake was completed successfully, and data is being transferred.
- C. The ION device received the SYN packet from the client but never saw a SYN-ACK response from the server.
- D. The traffic is being buffered while the ION waits for a dynamic VPN tunnel to establish.
Answer: C
Explanation:
Comprehensive and Detailed Explanation
In the Prisma SD-WAN Flow Browser, the Flow State provides a real-time snapshot of the TCP/UDP session lifecycle.
INIT (Initialization): This state indicates that the ION device has seen the initial packet of a new session (typically a TCP SYN) originating from the client (Source), but it has not yet seen a return packet (such as a TCP SYN-ACK) from the destination server.
Diagnosis: A flow stuck in INIT is a classic indicator of a "Blackhole" or reachability issue downstream. It implies that the ION successfully routed the packet out toward the destination, but the destination did not reply. Common causes include:
The server is offline.
A firewall in the path (or on the server itself) is dropping the traffic.
Routing is broken on the return path (asymmetric routing where the return traffic bypasses the ION).
If the flow had been denied by the ION's own firewall (Option C), the state would typically show as DENY or REJECT. If the handshake completed (Option A), the state would be ESTABLISHED. Therefore, INIT points to a lack of response from the remote end.
NEW QUESTION # 48
A network operator receives a critical SITE_CONNECTIVITY_DOWN alarm for a branch site in the Prisma SD-WAN portal.
What specific condition triggers this alarm type?
- A. All Secure Fabric Links (VPNs) to all remote peers are down, isolating the site from the overlay.
- B. The device has lost power and rebooted.
- C. The site has exceeded its licensed bandwidth capacity.
- D. One of the two internet circuits at the site has gone down.
Answer: A
Explanation:
Comprehensive and Detailed Explanation
The SITE_CONNECTIVITY_DOWN alarm is a high-severity alert indicating a total loss of overlay connectivity for a site.
It does not trigger if just one circuit fails (Option B), provided that other circuits are still up and maintaining VPNs. A single link failure would typically trigger a "Link Down" or "VPN Down" alarm, but the Site connectivity would remain "Up" (degraded).
It does not simply mean the device rebooted (Option A), although a reboot would cause it temporarily; the alarm specifically tracks the state of the VPN fabric.
The SITE_CONNECTIVITY_DOWN alarm specifically generates when all Secure Fabric Links (VPN tunnels) on the device are in the "Down" state. This means the branch is completely isolated from the rest of the SD-WAN network (Data Centers and other branches), even if the device itself might still be powered on and reachable via the controller (management plane). It signifies a "Blackout" of the data plane for that location.
NEW QUESTION # 49
Which configuration requirement must be met to allow two branch ION devices to automatically establish a direct Dynamic VPN (branch-to-branch) connection for traffic flow, bypassing the Data Center?
- A. The Data Center ION must be offline to trigger the dynamic failover.
- B. A static "Gre Tunnel" must be manually configured between the two sites.
- C. The "Standard VPN" path policy must be selected.
- D. Both ION devices must be members of the same VPN Cluster.
Answer: D
Explanation:
Comprehensive and Detailed Explanation
Dynamic VPNs (also known as ION-to-ION or Branch-to-Branch VPNs) allow Prisma SD-WAN devices to establish direct, on-demand secure tunnels between branch sites to optimize latency for peer-to-peer traffic (e.g., VoIP calls between offices).
To enable this capability, the primary architectural requirement is the configuration of VPN Clusters.
A VPN Cluster defines a logical group of devices that are authorized to communicate with one another.
By default, or if devices are in different clusters without peering, the topology typically defaults to Hub-and-Spoke, where branches only talk to the Data Center.
When two branch ION devices are placed into the same VPN Cluster (or peered clusters), the controller shares the necessary reachability and cryptographic information between them.
Once in the same cluster, the ION devices monitor traffic. If a user at Branch A tries to contact a server at Branch B, the ION devices detect this interest. If a direct path is available (e.g., via public internet), they will dynamically negotiate a direct VPN tunnel, bypassing the Data Center hub. This offloads the hub and reduces latency. Option B is incorrect because SD-WAN eliminates manual GRE config. Option C is incorrect because dynamic VPNs are a performance feature, not just a disaster recovery feature.
NEW QUESTION # 50
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Palo Alto Networks SD-WAN-Engineer: Selling Network Security Administrator Products and Solutions: https://www.prepawaypdf.com/Palo-Alto-Networks/SD-WAN-Engineer-practice-exam-dumps.html
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