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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Operations and Monitoring | 38% | - Monitoring and Troubleshooting
|
| Topic 2: Deployment and Configuration | 38% | - Prisma SD-WAN Deployment
|
| Topic 3: Planning and Design | 24% | - Network Assessment and Requirements
|
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NEW QUESTION # 87
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?
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 # 88
A network engineer is troubleshooting a "Voice Quality" issue. They suspect that the DSCP markings are being stripped or altered by the ISP.
Which tool in the Prisma SD-WAN portal allows the engineer to capture live packets on the WAN interface and inspect the IP header ToS/DSCP field?
Answer: C
Explanation:
Comprehensive and Detailed Explanation
To validate specific packet-level details like DSCP (Differentiated Services Code Point) values, header checksums, or exact payload sizes, a Packet Capture (PCAP) is required.
PCAP Tool: Prisma SD-WAN provides a built-in PCAP utility accessible directly from the portal. The engineer can select the specific Interface (e.g., Internet 1), apply a Filter (e.g., port 5060 or host 1.2.3.4), and capture the traffic.
Analysis: The resulting .pcap file can be downloaded and opened in Wireshark. This allows the engineer to definitively see if the packets leaving the ION have DSCP EF (46) and if the packets arriving (if capturing on the other side) still retain that marking, or if the ISP has bleached it to CS0 (0).
Flow Browser (A): While it shows "Application" and metrics, the Flow Browser typically displays the assigned priority class, not necessarily the raw bit-level DSCP value present in the packet header on the wire.
NEW QUESTION # 89
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?
Answer: B
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 # 90
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?
Answer: A
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 # 91
A customer wants to deploy Prisma SD-WAN ION devices at small home offices that use consumer-grade broadband routers. These routers typically use Symmetric NAT and do not allow static port forwarding.
Which standard mechanism does Prisma SD-WAN utilize to successfully establish direct Branch-to-Branch (Dynamic) VPN tunnels through these Symmetric NAT devices?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
Prisma SD-WAN utilizes STUN (Session Traversal Utilities for NAT) to facilitate NAT Traversal for its Secure Fabric overlay.
Discovery: When an ION device connects to the internet behind a NAT router, it reaches out to the Prisma SD-WAN Controller. The controller acts as a STUN server, identifying the public IP address and port that the ION's traffic is originating from.
Symmetric NAT Challenge: In Symmetric NAT, the mapping changes for every destination. However, the Prisma SD-WAN architecture is designed to handle this by having the controller coordinate the connection attempt.
Hole Punching: The controller shares the discovered public mapping information between two peer ION devices. They then simultaneously initiate traffic to each other's public IP/Port (a technique called "UDP Hole Punching"). This tricks the intermediate NAT devices into allowing the inbound traffic, establishing a direct P2P IPSec tunnel without requiring manual port forwarding or static IPs at the edge.
NEW QUESTION # 92
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