Free Paloalto Networks NGFW-Engineer Practice Exam with Questions & Answers | Set: 3

Basic Concept: For active/passive HA upgrades, the safest method is to upgrade the passive firewall first, fail over to it, then upgrade the remaining peer. This preserves forwarding during most of the process.

Why C is Correct: The selected sequence keeps one firewall forwarding traffic at all times and avoids simultaneous reboots.

Why A is Wrong: From Panorama, create a scheduled software update job targeting both firewalls in the HA pair to run at the same time, then rely on the HA election process to manage the failover automatically. is an HA-related setting or behavior, but it is not the specific HA link, LACP pre-negotiation option, or upgrade sequence required here.

Why B is Wrong: Upgrade the passive firewall first while it is still in the passive state. Once it reboots and is operational, suspend the active firewall to fail over to the newly upgraded device. Then, upgrade the remaining firewall. is an HA-related setting or behavior, but it is not the specific HA link, LACP pre-negotiation option, or upgrade sequence required here.

Why D is Wrong: Disable HA synchronization on the active firewall, upgrade the passive firewall, and then re-enable synchronization. Once synchronized, repeat the process on the other firewall. is an HA-related setting or behavior, but it is not the specific HA link, LACP pre-negotiation option, or upgrade sequence required here.

Basic Concept: Managed Cloud NGFW should be inserted into existing cloud hub designs with Panorama policy synchronization. AWS TGW and Azure vWAN both support centralized inspection patterns.

Why B and D are Correct: Deploying Cloud NGFW in the vWAN hub and Cloud NGFW endpoints/security VPC behind TGW preserves existing routing patterns and centralizes policy.

Why A is Wrong: Deploy Cloud NGFW endpoints in every application virtual private cloud (VPC), ignoring the TGW. is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Why C is Wrong: Deploy individual VM-Series firewalls in each spoke virtual network (VNet) and manage them as a device group in Panorama. is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Basic Concept: GCP multi-zone firewall resilience is achieved through managed instance groups or instance groups across zones behind a load balancer.

Why C is Correct: A multi-zone instance group of VM-Series firewalls behind a GCP Internal Load Balancer maintains service when one zone fails.

Why A is Wrong: Ansible playbook that monitors the health of the primary firewall and launches a new one in a different zone when a failure is detected is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Why B is Wrong: Single, large VM-Series firewall in one zone that is configured for live migration to another zone upon failure is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Why D is Wrong: PAN-OS active/active high availability (HA) cluster configured with dedicated HA interfaces in a shared VPC is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Basic Concept: Terraform is a declarative Infrastructure as Code tool used to provision infrastructure consistently. In Palo Alto Networks deployments, it is commonly used to build cloud network components and instantiate VM-Series or Cloud NGFW resources.

Why C is Correct: Terraform is correct because it defines infrastructure state in code and automates repeatable NGFW deployment instead of manually building each firewall and network dependency.

Why A is Wrong: Logging services collect or forward telemetry after deployment. Terraform does not store performance logs; it provisions infrastructure resources.

Why B is Wrong: Real-time traffic inspection is performed by the NGFW data plane, not by Terraform. Terraform only builds or changes infrastructure state.

Why D is Wrong: Threat intelligence synchronization is handled by Palo Alto Networks content services and firewall subscriptions, not Terraform.

Basic Concept: The management interface can be configured as a DHCP client from the CLI under deviceconfig system settings. This lets the management port learn its IP information dynamically.

Why C is Correct: The command using deviceconfig system type dhcp-client is correct for setting the management interface to DHCP client mode.

Why A is Wrong: set network dhcp interface management is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why B is Wrong: set network dhcp type management-interface is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why D is Wrong: set deviceconfig management type dhcp-client is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Basic Concept: Admin Role Profiles implement role-based administrative access on PAN-OS. They define exactly which management operations an administrator may perform.

Why C is Correct: Granular task permissions are correct because Admin Role Profiles limit administrator capabilities rather than enabling MFA or unrestricted access.

Why A is Wrong: Allow access to all resources without restrictions. is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why B is Wrong: Enable multi-factor authentication (MFA) for administrator access. is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why D is Wrong: Restrict access to sensitive report data. is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Basic Concept: Cloud NGFW deployment must fit the cloud routing architecture. Distributed AWS VPCs and Azure vWAN hubs call for different insertion models while still using Panorama policy.

Why C and D are Correct: Cloud NGFW endpoints in each AWS application VPC and Cloud NGFW as an Azure vWAN security partner minimize routing changes and keep policy centrally managed.

Why A is Wrong: Native cloud provider firewalls in both cloud environments and connected to Panorama for management is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Why B is Wrong: Cloud NGFW in each spoke VNet with User-Defined Routes (UDRs) to redirect traffic bypassing the vWAN hub is a cloud deployment or routing approach, but it does not match the required managed insertion model, resilience pattern, or Panorama-controlled policy design in this scenario.

Basic Concept: Explicit proxy requires client browsers to point to the firewall's proxy address and port. Kerberos adds seamless Active Directory SSO for user authentication.

Why A is Correct: Web proxy in explicit mode with Kerberos authentication directly matches both manual proxy configuration and seamless AD authentication.

Why B is Wrong: Decryption policy that redirects users to a SAML identity provider for authentication is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why C is Wrong: Web proxy in transparent mode with an Authentication policy by using multi-factor authentication (MFA) is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Why D is Wrong: User-ID agent integration with Authentication Portal for authentication is a valid Palo Alto Networks or networking concept in another context, but it does not implement the exact configuration outcome required by this question.

Basic Concept: PAN-OS security zones have specific types that correspond to interface operating modes. Valid zone types include Layer 2, Layer 3, Virtual Wire, Tap, Tunnel, and External depending on the design.

Why A and D are Correct: Tunnel and Virtual Wire are valid selectable zone types and are used for VPN/tunnel interfaces and inline transparent virtual wire deployments respectively.

Why B is Wrong: Intrazone is a default policy concept for traffic inside the same zone. It is not a selectable security zone type.

Why C is Wrong: Internal is commonly used as a zone name, but PAN-OS zone type is based on interface mode, not business naming.

Basic Concept: Certificate validation requires the full CA trust chain. If client certificates are issued by an intermediate CA, the firewall must have that intermediate in the trusted chain.

Why A is Correct: Missing the intermediate CA is the most likely reason the firewall rejects otherwise valid client certificates as invalid.

Why B is Wrong: Client certificates were generated with an insecure key length (e.g., 1024-bit RSA). is associated with authentication, PKI, or TLS configuration, but it is not the object or step that enforces the certificate validation or service identity requirement being tested.

Why C is Wrong: Firewall clock is out of sync with the CA server by more than five minutes. is associated with authentication, PKI, or TLS configuration, but it is not the object or step that enforces the certificate validation or service identity requirement being tested.

Why D is Wrong: Online Certificate Status Protocol (OCSP) responder is unreachable, and no certificate revocation list (CRL) fallback is configured. is associated with authentication, PKI, or TLS configuration, but it is not the object or step that enforces the certificate validation or service identity requirement being tested.