PCSFE : Palo Alto Networks Certified Software Firewall Engineer (PCSFE) Exam

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Palo-Alto
PCSFE
Palo Alto Networks Certified Software Firewall Engineer
(PCSFE)
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Question: 160
Which feature provides real-time analysis using machine learning (ML) to defend against new and unknown threats?
A. Advanced URL Filtering (AURLF)
B. Cortex Data Lake
C. DNS Security
D. Panorama VM-Series plugin
Answer: C
Explanation:
DNS Security is the feature that provides real-time analysis using machine learning (ML) to defend against new and
unknown threats. DNS Security leverages a cloud-based service that applies predictive analytics, advanced ML, and
automation to block malicious domains and stop attacks in progress. Advanced URL Filtering (AURLF), Cortex Data
Lake, and Panorama VM-Series plugin are not features that provide real-time analysis using ML, but they are related
solutions that can enhance security and visibility.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [DNS Security Datasheet], [Advanced
URL Filtering Datasheet], [Cortex Data Lake Datasheet], [Panorama VM-Series Plugin]
Question: 161
Which of the following can provide application-level security for a web-server instance on Amazon Web Services
(AWS)?
A. VM-Series firewalls
B. Hardware firewalls
C. Terraform templates
D. Security groups
Answer: A
Explanation:
VM-Series firewalls can provide application-level security for a web-server instance on Amazon Web Services
(AWS). VM-Series firewalls are virtualized versions of the Palo Alto Networks next-generation firewall that can be
deployed on various cloud platforms, including AWS. VM-Series firewalls can protect web servers from cyberattacks
by applying granular security policies based on application, user, content, and threat information. Hardware firewalls,
Terraform templates, and security groups are not solutions that can provide application-level security for a web-server
instance on AWS, but they are related concepts that can be used in conjunction with VM-Series firewalls.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [VM-Series on AWS], [VM-Series
Datasheet], [Terraform for VM-Series on AWS], [Security Groups for Your VPC]
Question: 162
Which two statements apply to the VM-Series plugin? (Choose two.)
A. It can manage capabilities common to both VM-Series firewalls and hardware firewalls.
B. It can be upgraded independently of PAN-O
C. It enables management of cloud-specific interactions between VM-Series firewalls and supported public cloud
platforms.
D. It can manage Panorama plugins.
Answer: A,B
Explanation:
The two statements that apply to the VM-Series plugin are:
It can be upgraded independently of PAN-OS.
It enables management of cloud-specific interactions between VM-Series firewalls and supported public cloud
platforms.
The VM-Series plugin is a software component that extends the functionality of the PAN-OS operating system to
support cloud-specific features and APIs. The VM-Series plugin can be upgraded independently of PAN-OS to
provide faster access to new cloud capabilities and integrations. The VM-Series plugin enables management of cloud-
specific interactions between VM-Series firewalls and supported public cloud platforms, such as AWS, Azure, GCP,
Alibaba Cloud, and Oracle Cloud. These interactions include bootstrapping, licensing, scaling, high availability, load
balancing, and tagging. The VM-Series plugin cannot manage capabilities common to both VM-Series firewalls and
hardware firewalls, as those are handled by PAN-OS. The VM-Series plugin cannot manage Panorama plugins, as
those are separate software components that extend the functionality of the Panorama management server to support
cloud-specific features and APIs.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [VM-Series Plugin Overview], [VM-
Series Plugin Release Notes]
Question: 163
What can software next-generation firewall (NGFW) credits be used to provision?
A. Remote browser isolation
B. Virtual Panorama appliances
C. Migrating NGFWs from hardware to VMs
D. Enablement of DNS security
Answer: C
Explanation:
Software next-generation firewall (NGFW) credits can be used to provision migrating NGFWs from hardware to VMs.
Software NGFW credits are a flexible licensing model that allows customers to purchase and consume software
NGFWs as needed, without having to specify the platform or deployment model upfront. Customers can use software
NGFW credits to migrate their existing hardware NGFWs to VM-Series firewalls on any supported cloud or
virtualization platform, or to deploy new VM-Series firewalls as their needs grow. Software NGFW credits cannot be
used to provision remote browser isolation, virtual Panorama appliances, or enablement of DNS security, as those are
separate solutions that require different licenses or subscriptions.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Software NGFW Credits Datasheet],
[Software NGFW Credits FAQ]
Question: 164
How is traffic directed to a Palo Alto Networks firewall integrated with Cisco ACI?
A. By using contracts between endpoint groups that send traffic to the firewall using a shared policy
B. Through a virtual machine (VM) monitor domain
C. Through a policy-based redirect
D. By creating an access policy
Answer: C
Explanation:
Traffic is directed to a Palo Alto Networks firewall integrated with Cisco ACI through a policy-based redirect. Cisco
ACI is a software-defined network (SDN) solution that provides network automation, orchestration, and visibility. A
policy-based redirect is a mechanism that allows Cisco ACI to redirect traffic from one endpoint group (EPG) to
another EPG through a service device, such as a Palo Alto Networks firewall. The firewall can then inspect and
enforce security policies on the redirected traffic before sending it back to Cisco ACI. Traffic is not directed to a Palo
Alto Networks firewall integrated
with Cisco ACI by using contracts between endpoint groups that send traffic to the firewall using a shared policy,
through a virtual machine (VM) monitor domain, or by creating an access policy, as those are not valid methods for
traffic redirection in Cisco ACI.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Deploy the VM-Series Firewall on
Cisco ACI], [Cisco ACI Policy-Based Redirect]
Question: 165
Which protocol is used for communicating between VM-Series firewalls and a gateway load balancer in Amazon Web
Services (AWS)?
A. VRLAN
B. Geneve
C. GRE
D. VMLAN
Answer: B
Explanation:
Geneve is the protocol used for communicating between VM-Series firewalls and a gateway load balancer in Amazon
Web Services (AWS). A gateway load balancer is a type of network load balancer that distributes traffic across
multiple virtual appliances, such as VM-Series firewalls, in AWS. Geneve is a tunneling protocol that encapsulates the
original packet with an additional header that contains metadata about the source and destination endpoints, as well as
other information. Geneve allows the gateway load balancer to preserve the original packet attributes and forward it to
the appropriate VM-Series firewall for inspection and processing. VRLAN, GRE, and VMLAN are not protocols used
for communicating between VM-Series firewalls and a gateway load balancer in AWS, but they are related concepts
that can be used for other purposes.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Deploy the VM-Series Firewall with
AWS Gateway Load Balancer], [Geneve Protocol Specification]
Question: 166
Which two elements of the Palo Alto Networks platform architecture enable security orchestration in a software-
defined network (SDN)? (Choose two.)
A. Full set of APIs enabling programmatic control of policy and configuration
B. VXLAN support for network-layer abstraction
C. Dynamic Address Groups to adapt Security policies dynamically
D. NVGRE support for advanced VLAN integration
Answer: A,C
Explanation:
The two elements of the Palo Alto Networks platform architecture that enable security orchestration in a software-
defined network (SDN) are:
Full set of APIs enabling programmatic control of policy and configuration
Dynamic Address Groups to adapt Security policies dynamically
The Palo Alto Networks platform architecture consists of four key elements: natively integrated security technologies,
full set of APIs, cloud-delivered services, and centralized management. The full set of APIs enables programmatic
control of policy and configuration across the platform, allowing for automation and integration with SDN controllers
and orchestration tools. Dynamic Address Groups are objects that represent groups of IP addresses based on criteria
such as tags, regions, interfaces, or user-defined attributes. Dynamic Address Groups allow Security policies to adapt
dynamically to changes in the network topology or workload characteristics without requiring manual updates.
VXLAN support for network-layer abstraction and NVGRE support for advanced VLAN integration are not elements
of the Palo Alto Networks platform architecture, but they are features that support SDN deployments.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Palo Alto Networks Platform
Architecture], [API Overview], [Dynamic Address Groups Overview]
Question: 167
Which component scans for threats in allowed traffic?
A. Intelligent Traffic Offload
B. TLS decryption
C. Security profiles
D. NAT
Answer: C
Explanation:
Security profiles are the components that scan for threats in allowed traffic. Security profiles are sets of rules or
settings that define how the firewall will inspect and handle traffic based on various threat prevention technologies,
such as antivirus, anti-spyware, vulnerability protection, URL filtering, file blocking, data filtering, and WildFire
analysis. Security profiles can be applied to Security policy rules to enforce granular protection against known and
unknown threats in allowed traffic. Intelligent Traffic Offload, TLS decryption, and NAT are not components that scan
for threats in allowed traffic, but they are related features that can enhance security and performance.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Security Profiles Overview], [Threat
Prevention Datasheet]
Question: 168
Which two deployment modes of VM-Series firewalls are supported across NSX-T? (Choose two.)
A. Prism Central
B. Bootstrap
C. Service Cluster
D. Host-based
Answer: A,B,C
Explanation:
The two deployment modes of VM-Series firewalls that are supported across NSX-T are:
Bootstrap
Service Cluster
NSX-T is a software-defined network (SDN) solution that provides network virtualization, automation, and security
for cloud-native applications. Bootstrap is a method of deploying and configuring VM-Series firewalls in NSX-T
using a bootstrap package that contains the initial setup information, such as licenses, certificates, software updates,
and configuration files. Service Cluster is a mode of deploying VM-Series firewalls in NSX-T as a group of firewalls
that act as a single logical firewall to provide scalability and high availability. Prism Central, Host-based, and Service
Insertion are not deployment modes of VM-Series firewalls in NSX-T, but they are related concepts that can be used
for other purposes.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE),
[Deploy the VM-Series Firewall on NSX-T], [Bootstrap the VM-Series Firewall for NSX-T], [Deploy the VM-Series
Firewall as a Service Cluster on NSX-T]
Question: 169
A customer in a VMware ESXi environment wants to add a VM-Series firewall and partition an existing group of
virtual machines (VMs) in the same subnet into two groups. One group requires no additional security, but the second
group requires substantially more security.
How can this partition be accomplished without editing the IP addresses or the default gateways of any of the guest
VMs?
A. Edit the IP address of all of the affected VMs. www*
B. Create a new virtual switch and use the VM-Series firewall to separate virtual switches using virtual wire mode.
Then move the guests that require more security into the new virtual switch.
C. Create a Layer 3 interface in the same subnet as the VMs and then configure proxy Address Resolution Protocol
(ARP).
D. Send the VLAN out of the virtual environment into a hardware Palo Alto Networks firewall in Layer 3 mode. Use
the same IP address as the old default gateway, then delete it.
Answer: B
Explanation:
The partition can be accomplished without editing the IP addresses or the default gateways of any of the guest VMs by
creating a new virtual switch and using the VM-Series firewall to separate virtual switches using virtual wire mode.
Then move the guests that require more security into the new virtual switch. A virtual switch is a software-based
switch that connects virtual machines (VMs) in a VMware ESXi environment. A virtual wire is a deployment mode of
the VM-Series firewall that allows it to act as a bump in the wire between two network segments, without requiring an
IP address or routing configuration. By creating a new virtual switch and using the VM-Series firewall to separate
virtual switches using virtual wire mode, the customer can isolate the group of VMs that require more security from
the rest of the network, and apply security policies to the traffic passing through the firewall. The partition cannot be
accomplished without editing the IP addresses or the default gateways of any of the guest VMs by editing the IP
address of all of the affected VMs, creating a Layer 3 interface in the same subnet as the VMs and then configuring
proxy Address Resolution Protocol (ARP), or sending the VLAN out of the virtual environment into a hardware Palo
Alto Networks firewall in Layer 3 mode. Use the same IP address as the old default gateway, then delete it, as those
methods would require changing the network configuration of the guest VMs or introducing additional complexity and
latency.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Deploying Virtual Switches], [Virtual
Wire Deployment], [Deploying Virtual Wire on VMware ESXi]
Question: 170
How must a Palo Alto Networks Next-Generation Firewall (NGFW) be configured in order to secure traffic in a Cisco
ACI environment?
A. It must be deployed as a member of a device cluster
B. It must use a Layer 3 underlay network
C. It must receive all forwarding lookups from the network controller
D. It must be identified as a default gateway
Answer: B
Explanation:
A Palo Alto Networks Next-Generation Firewall (NGFW) must be configured to use a Layer 3 underlay network in
order to secure traffic in a Cisco ACI environment. A Layer 3 underlay network is a physical network that provides IP
connectivity between devices, such as routers, switches, and firewalls. A Palo Alto Networks NGFW must use a Layer
3 underlay network to communicate with the Cisco ACI fabric and receive traffic redirection from the Cisco ACI
policy-based redirect mechanism. A Palo Alto Networks NGFW does not need to be deployed as a member of a
device cluster, receive all forwarding lookups from the network controller, or be identified as a default gateway in
order to secure traffic in a Cisco ACI environment, as those are not valid requirements or options for firewall
integration with Cisco ACI.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Deploy the VM-Series Firewall on
Cisco ACI], [Cisco ACI Underlay Network]
Question: 171
Which component allows the flexibility to add network resources but does not require making changes to existing
policies and rules?
A. Content-ID
B. External dynamic list
C. App-ID
D. Dynamic address group
Answer: D
Explanation:
Dynamic address group is the component that allows the flexibility to add network resources but does not require
making changes to existing policies and rules. Dynamic address group is an object that represents a group of IP
addresses based on criteria such as tags, regions, interfaces, or user-defined attributes. Dynamic address group allows
Security policies to adapt dynamically to changes in the network topology or workload characteristics without
requiring manual updates. Content-ID, External dynamic list, and App-ID are not components that allow the flexibility
to add network resources but do not require making changes to existing policies and rules, but they are related features
that can enhance security and visibility.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Dynamic Address Groups Overview],
[Content-ID Overview], [External Dynamic Lists Overview], [App-ID Overview]
Question: 172
Which PAN-OS feature allows for automated updates to address objects when VM-Series firewalls are setup as part of
an NSX deployment?
A. Boundary automation
B. Hypervisor integration
C. Bootstrapping
D. Dynamic Address Group
Answer: D
Explanation:
Dynamic Address Group is the PAN-OS feature that allows for automated updates to address objects when VM-Series
firewalls are setup as part of an NSX deployment. NSX is a software-defined network (SDN) solution that provides
network virtualization, automation, and security for cloud-native applications. Dynamic Address Group is an object
that represents a group of IP addresses based on criteria such as tags, regions, interfaces, or user-defined attributes.
Dynamic Address Group allows Security policies to adapt dynamically to changes in the network topology or
workload characteristics without requiring manual updates. When VM-Series firewalls are setup as part of an NSX
deployment, they can leverage the NSX tags assigned to virtual machines (VMs) or containers by the NSX manager or
controller to populate Dynamic Address Groups and update Security policies accordingly. Boundary automation,
Hypervisor integration, and Bootstrapping are not PAN-OS features that allow for automated updates to address
objects when VM-Series firewalls are setup as part of an NSX deployment, but they are related concepts that can be
used for other purposes.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Dynamic Address Groups Overview],
[Deploy the VM-Series Firewall on VMware NSX]
Question: 173
Which two factors lead to improved return on investment for prospects interested in Palo Alto Networks virtualized
next-generation firewalls (NGFWs)? (Choose two.)
A. Decreased likelihood of data breach
B. Reduced operational expenditures
C. Reduced time to deploy
D. Reduced insurance premiums
Answer: A,C
Explanation:
The two factors that lead to improved return on investment for prospects interested in Palo Alto Networks virtualized
next-generation firewalls (NGFWs) are: Decreased likelihood of data breach Reduced time to deploy Palo Alto
Networks virtualized NGFWs are virtualized versions of the Palo Alto Networks next-generation firewall that can be
deployed on various cloud or virtualization platforms. Palo Alto Networks virtualized NGFWs provide comprehensive
security and visibility across hybrid and multi-cloud environments, protecting applications and data from cyberattacks.
By using Palo Alto Networks virtualized NGFWs, prospects can decrease the likelihood of data breach by applying
granular security policies based on application, user, content, and threat information, and by leveraging cloud-
delivered services such as Threat Prevention, WildFire, URL Filtering, DNS Security, and Cortex Data Lake. By using
Palo Alto Networks virtualized NGFWs, prospects can also reduce the time to deploy by taking advantage of
automation and orchestration tools such as Terraform, Ansible, CloudFormation, ARM templates, and Panorama
plugins that simplify and accelerate the deployment and configuration of firewalls across different cloud platforms.
Reduced operational expenditures and reduced insurance premiums are not factors that lead to improved return on
investment for prospects interested in Palo Alto Networks virtualized NGFWs, but they may be potential benefits or
outcomes of using them.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [VM-Series Datasheet], [CN-Series
Datasheet], [Cloud Security Solutions]
Question: 174
Auto scaling templates for which type of firewall enable deployment of a single auto scaling group (ASG) of VM-
Series firewalls to secure inbound traffic from the internet to Amazon Web Services (AWS) application workloads?
A. HA-Series
B. CN-Series
C. IPA-Series
D. VM-Series
Answer: D
Explanation:
Auto scaling templates for VM-Series firewalls enable deployment of a single auto scaling group (ASG) of VM-Series
firewalls to secure inbound traffic from the internet to Amazon Web Services (AWS) application workloads. An ASG
is a collection of EC2 instances that share similar characteristics and can be scaled up or down automatically based on
demand or predefined conditions. Auto scaling templates for VM-Series firewalls are preconfigured templates that
provide the necessary resources and configuration to deploy and manage VM-Series firewalls in an ASG on AWS.
Auto scaling templates for VM-Series firewalls can be used to secure inbound traffic from the internet to AWS
application workloads by placing the ASG of VM-Series firewalls behind an AWS Application Load Balancer (ALB)
or a Gateway Load Balancer (GWLB) that distributes the traffic across the firewalls. The firewalls can then inspect and
enforce security policies on the inbound traffic before sending it to the application workloads. Auto scaling templates
for HA-Series, CN-Series, and IPA-Series firewalls do not enable deployment of a single ASG of VM-Series firewalls
to secure inbound traffic from the internet to AWS application workloads, as those are different types of firewalls that
have different deployment models and use cases.
Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Auto Scaling the VM-Series Firewall
on AWS], [VM-Series Datasheet], [HA-Series Datasheet], [CN-Series Datasheet], [IPA-Series Datasheet]

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