Network Security Administrator SSE-Engineer Book

When the "Overlapping Subnets" checkbox is selected during the Remote Network onboarding process in Prisma Access, the deployment enables Private Application access using Prisma Access for Users(ZTNA or Private Access). This feature is designed to handle scenarios where multiple sites use the same IP subnet by leveraging NAT (Network Address Translation) and segmentation to avoid conflicts.

Since overlapping subnets can create routing challenges for direct remote network-to-remote network communication, Prisma Access does not support Remote Network-to-Remote Network or Mobile User communication in this case. Private application access is supported as Prisma Access correctly routes requests based on application-layer intelligence rather than IP-based routing.

When a large branch office experiences a high volume of employees logging in within a short time frame, the following apply:

Maximum pending TCP DNS requests is 64– This means that Prisma Access can queue up to 64 pending DNS requests over TCP before dropping additional requests. If more requests are received simultaneously, some may fail or experience delays.

Maximum number of TCP DNS retries is 3– If a DNS request fails over TCP, Prisma Access will attempt to retry the request up to three times before failing over to another method or returning an error.

TheCommand CenterwithinStrata Cloud Manager (SCM)provides acentralized view of applications, threats, and user insightsacross bothNGFW (Next-Generation Firewall) and Prisma Accesssimultaneously. This feature enables theoperations teamto monitorbranch locations, analyzesecurity events, and detect anomalies in real time, offering acomprehensive visibility and threat intelligence interfacefor proactive network and security management.

TheCloud Dynamic User Groupcapability inCloud Identity Engineenables the creation ofSecurity policiesthat useEntra ID (formerly Azure AD) attributesfor user identification. This allows PrismaAccess to dynamically applyuser-based security rulesbased onreal-time Entra ID attributes, ensuring that access policies adapt to user changes such asgroup membership, device compliance, or role updates.