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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Planning and Design | 24% | - Network Assessment and Requirements
|
| Topic 2: Operations and Monitoring | 38% | - Monitoring and Troubleshooting
|
| Topic 3: Deployment and Configuration | 38% | - Prisma SD-WAN Deployment
|
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NEW QUESTION # 78
User-ID integration is configured for a Prisma SD-WAN deployment. Branch-1 has the user-to-IP mappings available, and User-1 is mapped to IP-1.
To which two use cases can User-ID based zone-based firewall policies be applied? (Choose two.)
Answer: B,D
Explanation:
Comprehensive and Detailed Explanation
In Prisma SD-WAN (CloudGenix), Zone-Based Firewall (ZBFW) policies rely on the device's ability to map an IP address to a User-ID to enforce identity-based rules. The key to this question is understanding where the mapping exists and which direction the policy attributes (Source User vs. Destination User) apply to.
1. Mapping Location (Branch-1): The prompt states that Branch-1 has the user-to-IP mapping for User-1. For the most effective and scalable security enforcement, policies should be applied at the source (ingress) device where the traffic originates and where the user identity is known. This prevents unauthorized traffic from consuming WAN bandwidth only to be dropped at the destination. Therefore, the Branch-1 ION is the correct enforcement point for User-1's traffic.
2. Source vs. Destination User:
User-1 is the Source: In all scenarios, User-1 is the initiator of the traffic. Therefore, the security rule must match on Source User-ID.
Options C and D are incorrect because they suggest using Destination User-ID based rules to control User-1. Destination User-ID rules are used when the target of the traffic is a known user (e.g., VoIP calls to a specific user's phone), not when filtering based on the sender. Furthermore, relying on the DC or Branch-2 ION to enforce policies for User-1 would require the propagation of User-ID mappings across the overlay, whereas local enforcement at Branch-1 is the standard architectural model.
3. Valid Use Cases (A and B):
Option A (SaaS/Internet): The Branch-1 ION acts as the internet gateway. It can use the local mapping (IP-1 = User-1) to allow or deny access to specific SaaS applications (Direct Internet Access) based on the user's identity (e.g., "Allow Marketing Group to access Social Media").
Option B (Internal Segmentation): The Branch-1 ION can enforce policies for traffic moving between local zones (e.g., from a "Users" VLAN to a "Servers" VLAN within the branch). Since the ION routes this traffic and holds the mapping, it can enforce Source User-ID policies to secure local private applications.
NEW QUESTION # 79
In a data center (DC) with two ION devices, all of the remote branch Prisma SD-WAN VPNs are active only on DC ION-1.
Why are no VPNs active on DC ION-2?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
In a Prisma SD-WAN Data Center deployment, the operational state of the Secure Fabric VPNs (overlay tunnels) is directly tied to the health of the BGP Core Peer configuration.4
* Core Peer Dependency: DC ION devices typically peer with the data center core switch (Core Router) via BGP to learn the subnets (prefixes) for the applications hosted in the DC. The Prisma SD-WAN controller monitors this BGP peering status.5
* Controller Logic: If the BGP Core Peer on a DC ION goes down (or is not established), the controller automatically marks the VPN tunnels terminating at that specific ION as "Inactive".6 This is a fail- safe mechanism designed to prevent remote branches from sending traffic to a DC ION that has lost conne7ctivity to the internal data center network (and thus the applications).
* Scenario Analysis: In this scenario, DC ION-1 has active VPNs, meaning its BGP Core Peer is UP and it is successfully advertising reachability. DC ION-2 has no active VPNs, which strongly indicates that its BGP Core Peer is down.8 Because the controller sees the peer is down, it suppresses the tunnel establishment or marks existing tunnels as inactive to ensure traffic is only directed to the healthy node (ION-1).
NEW QUESTION # 80
In a Data Center deployment, what is the key functional difference between configuring a BGP neighbor as a
"Core Peer" versus an "Edge Peer"?
Answer: B
Explanation:
Comprehensive and Detailed Explanation
In the Prisma SD-WAN Data Center (DC) model, the terminology for BGP peers defines their role in the topology and how the system generates route maps.
* Core Peer: This peer type is designated for the LAN-side connection (facing the DC Core Switch or internal Routers). Its primary purpose is to learn the subnets/prefixes hosted in the data center so the ION can advertise them to the remote branches. The system automatically creates route maps to facilitate this redistribution into the fabric.
* Edge Peer: This peer type is designated for the WAN-side connection (facing the Edge Router or MPLS PE). Its primary purpose is to provide reachability to the underlay network.
* Distinction: Selecting the correct type affects the default Route Maps and Prefix Lists generated by the controller. Configuring a Core Peer correctly ensures that the DC's internal subnets are properly learned and propagated to the overlay, whereas an Edge Peer configuration focuses on WAN next-hop reachability.
NEW QUESTION # 81
Which implementation allows Prisma SD-WAN to improve application performance for organizations facing inconsistent user experiences across branch locations, especially due to varying device types and network conditions, by using Layer 4 and Layer 7 optimization to boost throughput?
Answer: B
Explanation:
Prisma SD-WAN addresses inconsistent application performance through Application Acceleration, which encompasses a suite of features designed to mitigate the effects of latency and packet loss.1 While basic SD- WAN functionality handles path selection, Application Acceleration goes further by employing Layer 4 (TCP) and Layer 7 (Application) optimizations. These optimizations are particularly effective for organizations with diverse branch environments where network conditions are unpredictable.
At Layer 4, Prisma SD-WAN implements TCP optimization techniques such as window scaling, selective acknowledgments, and congestion control algorithms.2 These mechanisms allow the ION devices to "trick" the end hosts into sending data faster by acknowledging packets locally, effectively shielding the application from the round-trip time (RTT) delays inherent in long-distance WAN circuits. This significantly boosts throughput for bulk data transfers and legacy protocols that were not originally designed for high-latency environments.
At Layer 7, the system can perform application-specific optimizations, such as metadata caching or protocol- specific acceleration for services like SMB or HTTP.3 By reducing the number of "chatty" exchanges required to complete a transaction, Prisma SD-WAN ensures a snappy, consistent user experience regardless of whether the user is on a high-speed fiber link or a degraded cellular connection. This is distinct from Forward Error Correction (FEC) (Option C) or Packet Duplication (Option A), which focus on reconstructing lost packets rather than optimizing the protocol throughput itself. By combining these L4 and L7 techniques, Application Acceleration ensures that business-critical SaaS and data center applications perform optimally across the entire distributed enterprise.
NEW QUESTION # 82
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?
Answer: B
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 # 83
......
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