Palo Alto Networks Network Security Architect 認定 NetSec-Architect 試験問題:

1. An organization is in the process of building a network infrastructure that is cloud first. Part of the revised architecture includes Prisma Access as demonstrated in the diagram below. The organization has selected Strata Cloud Manager (SCM) as the management method for Prisma Access and NGFWs deployed at the data center and in public cloud environments. There are 150 NGFWs in place that are used to terminate service connections and segment networks as well as to secure the data center and public cloud resources.

One of the resilience requirements is to provide highly available directory services and authentication for the NGFW and Prisma Access deployment.
Which traffic flow is valid for administrators connecting network equipment over SSH hosted in the data center?

A) Prisma Browser → Explicit Proxy → Mobile User SPN → Service Connection → Data Center → Target Application
B) Prisma Browser → Explicit Proxy → Service Connection → Data Center → Target Application
C) Prisma Browser → Service Connection → Data Center → Target Application
D) Prisma Browser → Mobile User SPN → Service Connection → Data Center → Target Application

2. An organization wants to modernize its legacy branch architecture. The existing architecture is rigid, complex, and ill-suited for a cloud-first strategy, creating high operational costs and latency.
- The four core data centers are strategically located in Dallas, Toronto, London and Tokyo, and they are interconnected by a dedicated MPLS backbone providing reliable connectivity but incurring significant costs and offering limited bandwidth scalability.
- Branches rely on MPLS or site-to-site VPN to connect to the nearest geographical data center.
- All internet-bound traffic from the branches is backhauled to the data center egress firewalls.
This creates latency for SaaS applications and increases bandwidth strain on the MPLS links.
The organization requires a proposal for a new WAN architecture for branch connectivity with the goal of improving security posture and SaaS application access as well as supporting local internet breakout for all branch devices, including IoT.
Which two implementations will achieve the goal of modernizing the branch architecture?
(Choose two.)

A) SASE with Prisma Access for remote networks and service connections
B) NGFW at each branch with Large Scale VPN (LSVPN) for data center access and Direct Internet Access (DIA)
C) SD-WAN using on-premises NGFWs for Direct Internet Access (DIA)
D) SSE with Prisma Access for mobile users and service connections

3. A global organization is modernizing its data center and private cloud infrastructure. The environment consists of:
- A Nutanix AHV cluster hosting critical east-west application workloads
- A VMware ESXi cluster with multi-socket hosts, supporting high-throughput workloads (>10 Gbps)
- A new pair of PA-5450 firewalls to secure the perimeter and handle encrypted traffic inspection at scale
- Strict performance service-level agreements (SLAs) for both north-south and east-west flows, with heavy reliance on TLS 1.3 and IPSec
- A Network Functions Virtualization (NFV) environment on KVM to provide high-performance security services to maximize packet throughput and minimize latency The chief architect is tasked with ensuring that the firewall design avoids hypervisor contention optimizes non-uniform memory access (NUMA) and uses hardware features for encrypted traffic.
VM-Series on Nutanix AHV - Resource Allocation
- Because the Nutanix cluster is already heavily used, the architect's main concern is preventing performance degradation of the virtual firewall. Thin provisioning or ballooning could introduce latency and unpredictability which is unacceptable for a security-sensitive workload.
VM-Series on VMware ESXi - NUMA and vCPU Placement
- In the VMware ESXi environment, the architect is deploying VM-Series for workloads pushing >10 Gbps. Assigning vCPUs across NUMA nodes or oversubscribing cores would create latency due to cross-socket memory access and scheduling delays. Similarly, dedicating logical hypethreads does not provide the deterministic data plane performance required.
Operational Integration and High Availability
- With performance guaranteed by correct hypervisor and hardware provisioning, the architect also considers high availability (HA). VM-Series pairs are deployed in active/passive HA across Nutanix and VMware clusters, while PA-5450s form the data center's north-south secure perimeter deployment. This ensures resilience without introducing unnecessary east-west inspection bottlenecks.
- The recommendation must be a scalable, high-performance firewall deployment aligned with enterprise SLAs and the CISO's encrypted traffic concerns.
Which PAN-OS feature will meet the CISO's need for north-south traffic inspection?

A) Dedicated hardware crypto engines for offloading SSL/TLS decryption and IPSec processing
B) Dedicated out-of-band management port for separating management and data traffic
C) High-density DAC/QSFP ports for flexible network connectivity
D) Dual redundant, hot-swappable power supplies for HA

4. An organization has selected Prisma SD-WAN ION devices for use at branch offices and is working to build a low-level design for its sites. A typical branch site has a 10 Mbps MPLS with fiber LC-SR, and an RJ-45 Ethernet 50 Mbps DIA internet circuit.
There are 75 workstations and a stacked core switch that supports LACP, M-LAG, BGP, and OSPF will be used. The core switch is the default gateway for all local VLANs. The final design will determine the selection of the appropriate model and accessories for the site.
Which statement applies to the Prisma SD-WAN architecture in this use case?

A) Connectivity over the MPLS will be lost when the device that terminates it loses power
B) High availability (HA) for the LAN side connectivity can at most support two interfaces using LAG / LACP
C) MPLS underlay paths cannot be used as an active path alongside internet overlay path
D) Only a default route can be advertised on a LAN-side BGP peering from the ION

5. A global organization is modernizing its data center and private cloud infrastructure. The environment consists of:
- A Nutanix AHV cluster hosting critical east-west application workloads
- A VMware ESXi cluster with multi-socket hosts, supporting high-throughput workloads (>10 Gbps)
- A new pair of PA-5450 firewalls to secure the perimeter and handle encrypted traffic inspection at scale
- Strict performance service-level agreements (SLAs) for both north-south and east-west flows, with heavy reliance on TLS 1.3 and IPSec
- A Network Functions Virtualization (NFV) environment on KVM to provide high-performance security services to maximize packet throughput and minimize latency The chief architect is tasked with ensuring that the firewall design avoids hypervisor contention optimizes non-uniform memory access (NUMA) and uses hardware features for encrypted traffic.
VM-Series on Nutanix AHV - Resource Allocation
- Because the Nutanix cluster is already heavily used, the architect's main concern is preventing performance degradation of the virtual firewall. Thin provisioning or ballooning could introduce latency and unpredictability which is unacceptable for a security-sensitive workload.
VM-Series on VMware ESXi - NUMA and vCPU Placement
- In the VMware ESXi environment, the architect is deploying VM-Series for workloads pushing >10 Gbps. Assigning vCPUs across NUMA nodes or oversubscribing cores would create latency due to cross-socket memory access and scheduling delays. Similarly, dedicating logical hypethreads does not provide the deterministic data plane performance required.
Operational Integration and High Availability
- With performance guaranteed by correct hypervisor and hardware provisioning, the architect also considers high availability (HA). VM-Series pairs are deployed in active/passive HA across Nutanix and VMware clusters, while PA-5450s form the data center's north-south secure perimeter deployment. This ensures resilience without introducing unnecessary east-west inspection bottlenecks.
- The recommendation must be a scalable, high-performance firewall deployment aligned with enterprise SLAs and the CISO's encrypted traffic concerns.
Which resource allocation strategy should the architect use for the VM-Series virtual machine (VM)?

A) Enable memory overcommitment (ballooning) on the VM to allow the hypervisor to reclaim unused memory for other workloads.
B) Use thin provisioning for the VM's virtual disks to save storage space and allow for flexible growth.
C) Implement CPU and memory reservation for the VM, pinning it to specific physical cores and reserving 100% of its allocated RAM.
D) Configure the VM with a high-priority setting in the AHV scheduler to ensure it gets preferential access to CPU cycles.

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