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Palo Alto Networks NGFW-Engineer Exam Syllabus Topics:
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NEW QUESTION # 39
A government agency needs to ensure that all user web access is explicitly mediated and authenticated. The agency has the following requirements:
- Client browsers must be manually configured to send traffic to the
firewall's IP address and a specific port.
- The firewall must support seamless single sign-on (SSO) with the
users' existing Active Directory credentials.
Which feature set should the engineer configure to meet the agency's requirements?
- A. Decryption policy that redirects users to a SAML identity provider for authentication
- B. User-ID agent integration with Authentication Portal for authentication
- C. Web proxy in explicit mode with an Authentication policy by using Kerberos
- D. Web proxy in transparent mode with an Authentication policy by using multi-factor authentication (MFA)
Answer: C
Explanation:
Explicit web proxy mode requires client browsers to be manually configured to send traffic to the firewall's IP address and port, and integrating it with an Authentication policy using Kerberos enables seamless single sign-on with Active Directory credentials through native domain authentication without additional user interaction.
NEW QUESTION # 40
Without performing a context switch, which set of operations can be performed that will affect the operation of a connected firewall on the Panorama GUI?
- A. Modification of post NAT rules, creation of new views on the local firewall ACC tab, creation of local custom reports
- B. Modification of pre-security rules, modification of a virtual router, modification of an IKE Gateway Network Profile
- C. Modification of local security rules, modification of a Layer 3 interface, modification of the firewall device hostname
- D. Restarting the local firewall, running a packet capture, accessing the firewall CLI
Answer: B
Explanation:
From the Panorama GUI context, pre-rules (pre-security rules), virtual routers, and IKE Gateway Network Profiles are managed centrally through Device Groups and Templates, so modifications apply directly to firewalls after commit/push without needing to switch to the firewall's local context.
NEW QUESTION # 41
An administrator is configuring a GlobalProtect pre-logon VPN. The administrator has already imported the necessary internal certificate authority (CA) certificates for issuing machine certificates onto the firewall.
Which configuration is required on the GlobalProtect Gateway to enable pre-logon using these machine certificates?
- A. Create an authentication profile that points to the machine certificate's CA and assign it by using the client authentication settings of the GlobalProtect Portal.
- B. Create a device-based Security policy that allows traffic from the pre-logon user to an internal management zone.
- C. Configure the Gateway Agent --> Tunnel Settings to use IPSec with machine certificate authentication for the pre- logon tunnel.
- D. Create a certificate profile that trusts the machine certificate's CA and assign it within the Gateway Agent --> Client Authentication settings.
Answer: D
Explanation:
Pre-logon using machine certificates requires the GlobalProtect Gateway to authenticate endpoints based on certificate trust, which is achieved by creating a certificate profile that trusts the issuing CA and assigning it in the Gateway Agent → Client Authentication settings so the gateway can validate machine certificates during pre-logon authentication.
NEW QUESTION # 42
How does a Palo Alto Networks firewall choose the best route when it receives routes for the same destination from different routing protocols?
- A. It will attempt to load balance the traffic across all routes.
- B. The route that was received first will be entered into the forwarding table, and all subsequent routes will be rejected.
- C. It compares the administrative distance and chooses the one with the lowest value.
- D. It compares the administrative distance and chooses the one with the highest value.
Answer: C
Explanation:
When a Palo Alto Networks firewall receives routes for the same destination from different routing protocols, it uses the administrative distance (AD) to determine the best route. The administrative distance is a measure of the trustworthiness of a route, with a lower value indicating higher preference. The firewall will choose the route with the lowest administrative distance to populate its forwarding table.
NEW QUESTION # 43
A PA-Series firewall with all licensable features is being installed. The customer's Security policy requires that users do not directly access websites. Instead, a security device must create the connection, and there must be authentication back to the Active Directory servers for all sessions.
Which action meets the requirements in this scenario?
- A. Deploy the transparent proxy with Web Cache Communications Protocol (WCCP).
- B. Deploy the explicit proxy with Kerberos authentication scheme.
- C. Deploy the Advanced URL Filtering license and captive portal.
- D. Deploy the Next-Generation Firewalls as normal and install the User-ID agent.
Answer: B
Explanation:
In this scenario, the customer requires that users do not directly access websites and that a security device (the firewall) manages the connection, while also ensuring that there is authentication back to the Active Directory (AD) servers for all sessions. The explicit proxy with Kerberos authentication is the best solution because:
The explicit proxy allows the firewall to intercept user web traffic and manage the connections on behalf of users.
Kerberos authentication ensures that the user's identity is validated against the Active Directory servers before the session is allowed, fulfilling the authentication requirement.
NEW QUESTION # 44
How do Zone Protection Profiles enhance network security?
- A. By encrypting all traffic entering and leaving the zone
- B. By dynamically assigning users to security groups
- C. By replacing security policies with predefined rule sets
- D. By providing protection against flood attacks, reconnaissance scans, and packet-based threats
Answer: D
NEW QUESTION # 45
An administrator is troubleshooting a newly configured site-to-site VPN between a PAN-OS firewall and a third-party policy-based VPN gateway. The tunnel allows traffic between the first pair of configured subnets, but traffic to a newly added remote subnet is failing. The administrator has confirmed that routing and Security policies are correct.
What is the most likely cause of this issue?
- A. The tunnel's maximum transmission unit (MTU) size must be increased to accommodate the new traffic.
- B. The Security policy for the new subnet must be placed above the existing VPN policy.
- C. A static route for the new subnet pointing to the tunnel interface is missing.
- D. The new local and remote subnets are missing from the Proxy ID configuration.
Answer: D
Explanation:
With a policy-based VPN, Phase 2 traffic selectors must explicitly include each permitted local and remote subnet pair. If the new subnet pair was added in routing and policy but not added to the Proxy ID configuration, the peer will not negotiate selectors for that traffic, so the new subnet traffic fails while the original subnet continues to work.
NEW QUESTION # 46
Which zone type allows traffic between zones in different virtual systems (VSYS), without the traffic leaving the firewall?
- A. Internal
- B. Isolated
- C. External
- D. Transient
Answer: C
Explanation:
External zones enable inter-VSYS communication internally on the firewall by associating with a specific VSYS and allowing traffic to traverse to visible external zones of other VSYS, requiring VSYS visibility configuration and security policies from internal zones to/from the external zone.
NEW QUESTION # 47
An administrator plans to upgrade a pair of active/passive firewalls to a new PAN-OS release. The environment is highly sensitive, and downtime must be minimized.
What is the recommended upgrade process for minimal disruption in this high availability (HA) scenario?
- A. Push the new PAN-OS version simultaneously to both firewalls, having them upgrade and reboot in parallel. Rely on automated HA reconvergence to restore normal operations without manually failing over traffic.
- B. Shut down the currently active firewall and upgrade it offline, allowing the passive firewall to handle all traffic. Once the active firewall finishes upgrading, bring it back online and rejoin the HA cluster.
Finally, upgrade the passive firewall while the newly upgraded unit remains active. - C. Suspend the active firewall to trigger a failover to the passive firewall. With traffic now running on the former passive unit, upgrade the suspended (now passive) firewall and confirm proper operation. Then fail traffic back and upgrade the remaining firewall.
- D. Isolate both firewalls from the production environment and upgrade them in a separate, offline setup.
Reconnect them only after validating the new software version, resuming HA functionality once both units are fully upgraded and tested.
Answer: C
Explanation:
In an active/passive HA setup, the recommended process for upgrading involves minimizing downtime and ensuring traffic continuity by using the failover process:
Suspend the active firewall: This triggers a failover to the passive unit, making it the active unit.
Upgrade the former passive (now active) unit: With traffic now running on the previously passive unit, upgrade the suspended unit while the active unit continues handling traffic.
Confirm proper operation: Once the upgrade is complete, verify that the upgraded unit is functioning properly.
Fail traffic back: Once the upgraded firewall is confirmed to be working, fail the traffic back to the original active unit and upgrade the remaining firewall.
NEW QUESTION # 48
In an authentication sequence, what happens if the "Continue on client cert failure" option is enabled?
- A. The firewall will log the failure and terminate the session.
- B. The firewall will skip client certificate authentication and proceed to the next authentication profile in the sequence.
- C. The firewall will deny access if the client certificate is invalid.
- D. The firewall will prompt the user to provide a valid client certificate.
Answer: B
NEW QUESTION # 49
A network security engineer needs to permit traffic between two distinct VSYS that reside on one Palo Alto Networks firewall. This traffic will not egress the firewall to an external device. Which zone type must be configured to act as the logical source and destination for this traffic flow?
- A. Layer 3
- B. External
- C. Layer 2
- D. TAP
Answer: B
Explanation:
In a multi-vsys (Virtual System) architecture on a Palo Alto Networks firewall, communication between two virtual systems can occur internally through the firewall's backplane without requiring the traffic to exit through a physical interface to an external switch or router. To facilitate this internal routing, a specialized zone type is required.
While Layer 3 zones are used for standard routed traffic and are bound to physical or logical interfaces, the Externalzone type is specifically designed for inter-vsys communication. When an engineer configures two virtual systems to talk to one another, they must create a zone in each VSYS and set the Type toExternal.
These zones act as the logical "entry" and "exit" points for traffic crossing the VSYS boundary.
For the traffic flow to be successful, the Virtual Router in the source VSYS must have a route (typically a next-vr route) pointing to the Virtual Router in the destination VSYS. However, from a security policy perspective, the firewall sees the traffic as egressing the External zone of the source VSYS and ingressing the External zone of the destination VSYS. Without defining these zones asExternal, the firewall cannot logically associate the session with the internal backplane hand-off, and the traffic will be dropped despite having correct routing entries. This architectural requirement ensures that even internal virtual traffic remains subject to the firewall's zone-based security inspection.
NEW QUESTION # 50
An engineer at a managed services provider is updating an application that allows its customers to request firewall changes to also manage SD-WAN. The application will be able to make any approved changes directly to devices via API.
What is a requirement for the application to create SD-WAN interfaces?
- A. REST API's "sdwanInterfaces" parameter on a firewall device
- B. XML API's "sdwanprofiles/interfaces" parameter on a Panorama device
- C. REST API's "sdwanInterfaceprofiles" parameter on a Panorama device
- D. XML API's "InterfaceProfiles/sdwan" parameter on a firewall device
Answer: A
Explanation:
To create SD-WAN interfaces through an API, the correct approach is to use the REST API's "sdwanInterfaces" parameter on a firewall device. This parameter allows you to configure SD-WAN interfaces directly on the firewall devices via API, ensuring that the required interfaces are set up and managed for SD-WAN functionality.
NEW QUESTION # 51
An organization's Security policy states that for all outbound web traffic, the TCP session to the external web server must be established by the firewall, not the user's workstation. This requires configuring user web browsers to point to the firewall. Authentication is also required.
Which solution on a PA-Series firewall meets these specific needs?
- A. Explicit proxy
- B. Transparent proxy
- C. GlobalProtect with User-ID
- D. Decryption policy with Authentication Portal
Answer: A
Explanation:
Explicit proxy requires user web browsers to be manually configured to send traffic to the firewall, and the firewall establishes the TCP session to external web servers on behalf of the client, enabling full mediation of outbound web traffic with integrated authentication support.
NEW QUESTION # 52
What is a result of enabling split tunneling in the GlobalProtect portal configuration with the "Both Network Traffic and DNS" option?
- A. It specifies when the secondary DNS server is used for resolution to allow access to specific domains that are not managed by the VPN.
- B. It specifies which domains are resolved by the VPN-assigned DNS servers and which domains are resolved by the local DNS servers.
- C. It allows users to access internal resources when connected locally and external resources when connected remotely using the same FQDN.
- D. lt allows devices on a local network to access blocked websites by changing which DNS server resolves certain domain names.
Answer: B
Explanation:
When split tunneling is enabled with the "Both Network Traffic and DNS" option in the GlobalProtect portal configuration, it allows the firewall to control which traffic is sent over the VPN tunnel and which is not.
Specifically, it determines which domains are resolved by the VPN-assigned DNS servers (for domains requiring VPN access) and which are resolved by local DNS servers (for domains that can be accessed without the VPN tunnel).
NEW QUESTION # 53
A security engineer creates a policy allowing only members of the Finance?
Active Directory group to access a cloud-based accounting application.
Which NGFW capability makes this policy possible?
- A. User-ID / identity integration
- B. NAT policy
- C. High availability clustering
- D. Dynamic routing protocols
Answer: A
Explanation:
User-ID integration maps IP addresses to authenticated users or groups, allowing identity-based security policies.
NEW QUESTION # 54
When deploying Palo Alto Networks NGFWs in a cloud service provider (CSP) environment, which method ensures high availability (HA) across multiple availability zones?
- A. Using load balancer and health probes
- B. Implementing Terraform templates for redundancy within one availability zone
- C. Deploying Ansible scripts for zone-specific scaling
- D. Configuring active/active HA
Answer: A
Explanation:
To ensure high availability (HA) across multiple availability zones (AZs) in a cloud service provider (CSP) environment, using a load balancer with health probes is a recommended method. This setup ensures that traffic can be directed to the healthy NGFW instances across multiple availability zones. If one NGFW instance or availability zone goes down, the load balancer can redirect traffic to the available instance(s) in other zones, providing redundancy and maintaining service availability.
NEW QUESTION # 55
A security administrator is hardening the ingress zone of an NGFW. The goal is to prevent attacks that rely on malformed IP address packets with incorrect header lengths or invalid TCP packets that have both the SYN and FIN flags set. Within which section of a Zone Protection profile should these protections be configured?
- A. Flood Protection
- B. Protocol Protection
- C. Reconnaissance Protection
- D. Packet-Based Attack Protection
Answer: D
Explanation:
In the Palo Alto Networks PAN-OS architecture, aZone Protection Profileprovides the first line of defense against infrastructure-level attacks. It is applied to an entire zone to protect the firewall's resources and the internal network from malicious or malformed traffic before that traffic is even processed by the Security Policy engine.
The specific protections described-detecting malformed IP headers (incorrect header lengths) and invalid TCP flag combinations (such as SYN and FIN set simultaneously, which is logically impossible in standard TCP communications)-fall under thePacket-Based Attack Protectionsection of the profile. This section is further divided into several tabs, includingIP Drop,TCP Drop, andICMP Drop.
* IP Drop:This is where the firewall is configured to discard packets with malformed headers, invalid lengths, or security risks like IP spoofing and fragments.
* TCP Drop:This section handles the "SYN-FIN" check. Setting both flags is a classic technique used by attackers to bypass legacy stateful firewalls or to fingerprint operating systems. By enabling these protections, the NGFW drops these non-compliant packets at the ingress stage.
UnlikeFlood Protection(which mitigates DoS/DDoS attacks by limiting packet rates) orReconnaissance Protection(which detects port scans and host sweeps),Packet-Based Attack Protectionfocuses on the structural integrity and protocol compliance of individual packets entering the interface.
NEW QUESTION # 56
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