Palo Alto Networks PCSFE Online Practice Questions and Exam Preparation

Palo Alto Networks PCSFE Online Questions & Answers

• Question 1:

  What must be enabled when using Terraform templates with a Cloud next-generation firewall (NGFW) for Amazon Web Services (AWS)?

  A. AWS CloudWatch logging
  B. Access to the Cloud NGFW for AWS console
  C. Access to the Palo Alto Networks Customer Support Portal
  D. AWS Firewall Manager console access
  B. Access to the Cloud NGFW for AWS console

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  Explanation/Reference:

  Access to the Cloud NGFW for AWS console must be enabled when using Terraform templates with a Cloud next-generation firewall (NGFW) for Amazon Web Services (AWS). Terraform is an open-source tool that allows users to define and provision infrastructure as code using declarative configuration files. Terraform templates are files that specify the resources and configuration for deploying and managing infrastructure components, such as firewalls, load balancers, networks, or servers. Cloud NGFW for AWS is a cloud-native solution that provides comprehensive security and visibility across AWS environments, including VPCs, regions, accounts, and workloads. Cloud NGFW for AWS is deployed and managed by Palo Alto Networks as a service, eliminating the need for customers to provision, configure, or maintain any infrastructure or software. Access to the Cloud NGFW for AWS console must be enabled when using Terraform templates with a Cloud NGFW for AWS, as the console is the web-based interface that allows customers to view and manage their Cloud NGFW for AWS instances, policies, logs, alerts, and reports. The console also provides the necessary information and credentials for integrating with Terraform, such as the API endpoint, access key ID, secret access key, and customer ID. AWS CloudWatch logging, access to the Palo Alto Networks Customer Support Portal, and AWS Firewall Manager console access do not need to be enabled when using Terraform templates with a Cloud NGFW for AWS, as those are not required or relevant components for Terraform integration. References: [Palo Alto Networks Certified Software Firewall Engineer (PCSFE)], [Terraform Overview], [Cloud Next-Generation Firewall Datasheet], [Cloud Next-Generation Firewall Deployment Guide], [Cloud Next- Generation Firewall Console Guide]

• Question 2:

  Which two actions can be performed for VM-Series firewall licensing by an orchestration system? (Choose two.)

  A. Creating a license
  B. Renewing a license
  C. Registering an authorization code
  D. Downloading a content update
  A. Creating a license
  C. Registering an authorization code

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  Explanation/Reference:

  The two actions that can be performed for VM-Series firewall licensing by an orchestration system are: Creating a license Registering an authorization code An orchestration system is a software tool that automates and coordinates complex tasks across multiple devices or platforms. An orchestration system can perform various actions for VM-Series firewall licensing by using the Palo Alto Networks Licensing API. The Licensing API is a RESTful API that allows programmatic control of license management for VM-Series firewalls. Creating a license is an action that can be performed for VM-Series firewall licensing by an orchestration system using the Licensing API. Creating a license involves generating a license key for a VM-Series firewall based on its CPU ID and the license type. Registering an authorization code is an action that can be performed for VM- Series firewall licensing by an orchestration system using the Licensing API. Registering an authorization code involves activating a license entitlement for a VM-Series firewall based on its authorization code and CPU ID. Renewing a license and downloading a content update are not actions that can be performed for VM-Series firewall licensing by an orchestration system using the Licensing API, but they are related tasks that can be done manually or through other methods. References: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Licensing API Overview], [Licensing API Reference Guide]

• Question 3:

  Which two criteria are required to deploy VM-Series firewalls in high availability (HA)? (Choose two.)

  A. Assignment of identical licenses and subscriptions
  B. Deployment on a different host
  C. Configuration of asymmetric routing
  D. Deployment on same type of hypervisor
  A. Assignment of identical licenses and subscriptions
  B. Deployment on a different host

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  Explanation/Reference:

  To deploy VM-Series firewalls in high availability (HA), you need to assign identical licenses and subscriptions, and deploy them on a different host. Assigning identical licenses and subscriptions ensures that both firewalls have the same features and capabilities. Deploying them on a different host ensures that they are not affected by the same host failure. References: [VM-Series High Availability]

• Question 4:

  Which two design options address split brain when configuring high availability (HA)? (Choose two.)

  A. Adding a backup HA1 interface
  B. Using the heartbeat backup
  C. Bundling multiple interfaces in an aggregated interface group and assigning HA2
  D. Sending heartbeats across the HA2 interfaces
  A. Adding a backup HA1 interface
  B. Using the heartbeat backup

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  Explanation/Reference:

  The two design options that address split brain when configuring high availability (HA) are: Adding a backup HA1 interface Using the heartbeat backup Split brain is a condition that occurs when both firewalls in an HA pair assume the active role and start processing traffic independently, resulting in traffic duplication, policy inconsistency, or session disruption. Split brain can be caused by network failures, device failures, or configuration errors that prevent the firewalls from communicating their HA status and synchronizing their configurations and sessions. Adding a backup HA1 interface is a design option that addresses split brain when configuring HA. The HA1 interface is used for exchanging HA state information and configuration synchronization between the firewalls. Adding a backup HA1 interface provides redundancy and failover protection for the HA1 interface, ensuring that the firewalls can maintain their HA communication and avoid split brain. Using the heartbeat backup is a design option that addresses split brain when configuring HA. The heartbeat backup is a mechanism that allows the firewalls to send additional heartbeat messages through an alternate path, such as a management interface or a data interface, to verify the health of the peer firewall. Using the heartbeat backup prevents split brain caused by network failures or device failures that affect the primary HA interfaces. Bundling multiple interfaces in an aggregated interface group and assigning HA2, and sending heartbeats across the HA2 interfaces are not design options that address split brain when configuring HA, but they are related features that can enhance performance and reliability. References: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [High Availability Overview], [Configure HA Backup Links], [Configure Heartbeat Backup]

• Question 5:

  What can be implemented in a CN-Series to protect communications between Dockers?

  A. Firewalling
  B. Runtime security
  C. Vulnerability management
  D. Data loss prevention (DLP)
  A. Firewalling

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  Explanation/Reference:

  CN-Series firewall can protect communications between Dockers by firewalling. Dockers are software platforms that provide containerization technology for packaging and running applications in isolated environments. Communications between Dockers are network connections between containers within a Docker host or across Docker hosts. CN-Series firewall is a containerized firewall that integrates with Kubernetes and provides visibility and control over container traffic. CN-Series firewall can protect communications between Dockers by firewalling, which is the process of inspecting and enforcing security policies on network traffic based on application, user, content, and threat information. CN-Series firewall can also leverage threat prevention technologies, such as antivirus, anti-spyware, vulnerability protection, URL filtering, file blocking, data filtering, and WildFire analysis, to block any malicious content or activity in the communications between Dockers. CN-Series firewall does not protect communications between Dockers by runtime security, vulnerability management, or data loss prevention (DLP), as those are not features or functions of CN-Series firewall. References: [Palo Alto Networks Certified Software Firewall Engineer (PCSFE)], [CN-Series Datasheet], [CN-Series Concepts], [What is Docker?]

• Question 6:

  Why are VM-Series firewalls and hardware firewalls that are external to the Kubernetes cluster problematic for protecting containerized workloads?

  A. They are located outside the cluster and have no visibility into application-level cluster traffic.
  B. They do not scale independently of the Kubernetes cluster.
  C. They are managed by another entity when located inside the cluster.
  D. They function differently based on whether they are located inside or outside of the cluster.
  A. They are located outside the cluster and have no visibility into application-level cluster traffic.

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  Explanation/Reference:

  VM-Series firewalls and hardware firewalls that are external to the Kubernetes cluster are problematic for protecting containerized workloads because they are located outside the cluster and have no visibility into application-level cluster traffic. Kubernetes is a platform that provides orchestration, automation, and management of containerized applications. Kubernetes cluster traffic consists of traffic between containers within a pod, across pods, or across namespaces. VM-Series firewalls and hardware firewalls that are external to the Kubernetes cluster cannot inspect or control this traffic, as they only see the encapsulated or aggregated traffic at the network layer. This creates blind spots and security gaps for containerized workloads. VM-Series firewalls and hardware firewalls that are external to the Kubernetes cluster are not problematic for protecting containerized workloads because they do not scale independently of the Kubernetes cluster, are managed by another entity when located inside the cluster, or function differently based on whether they are located inside or outside of the cluster, as those are not valid reasons or scenarios for firewall deployment in a Kubernetes environment. References: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [CN-Series Concepts], [VM-Series on Kubernetes]

• Question 7:

  How does a CN-Series firewall prevent exfiltration?

  A. It employs custom-built signatures based on hash
  B. It distributes incoming virtual private cloud (VPC) traffic across the pool of VM-Series firewalls.
  C. It provides a license deactivation API key.
  D. It inspects outbound traffic content and blocks suspicious activity.
  D. It inspects outbound traffic content and blocks suspicious activity.

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  Explanation/Reference:

  CN-Series firewall prevents exfiltration by inspecting outbound traffic content and blocking suspicious activity. Exfiltration is a technique used by attackers to steal sensitive data or assets from a compromised network or system, usually by sending them to an external destination, such as a command and control server, a drop zone, or an email address. CN-Series firewall is a containerized firewall that integrates with Kubernetes and provides visibility and control over container traffic. CN-Series firewall prevents exfiltration by inspecting outbound traffic content and blocking suspicious activity using threat prevention technologies, such as antivirus, anti-spyware, vulnerability protection, URL filtering, file blocking, data filtering, and WildFire analysis. CN-Series firewall does not prevent exfiltration by employing custom-built signatures based on hash, distributing incoming virtual private cloud (VPC) traffic across the pool of VM-Series firewalls, or providing a license deactivation API key, as those are not valid or relevant methods for exfiltration prevention. References: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [CN-Series Concepts], [CN-Series Deployment Guide for Native K8], [Threat Prevention Datasheet], [What is Exfiltration?]

• Question 8:

  What Palo Alto Networks software firewall protects Amazon Web Services (AWS) deployments with network security delivered as a managed cloud service?

  A. VM-Series
  B. Cloud next-generation firewall
  C. CN-Series
  D. Ion-Series Ion-Series
  B. Cloud next-generation firewall

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  Explanation/Reference:

  Cloud next-generation firewall is the Palo Alto Networks software firewall that protects Amazon Web Services (AWS) deployments with network security delivered as a managed cloud service. Cloud next-generation firewall is a cloud-native solution that provides comprehensive security and visibility across AWS environments, including VPCs, regions, accounts, and workloads. Cloud next-generation firewall is deployed and managed by Palo Alto Networks as a service, eliminating the need for customers to provision, configure, or maintain any infrastructure or software. VM-Series, CN-Series, and Ion-Series are not Palo Alto Networks software firewalls that protect AWS deployments with network security delivered as a managed cloud service, but they are related solutions that can be deployed on AWS or other platforms. References: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Cloud Next-Generation Firewall Datasheet], [VM-Series Datasheet], [CN-Series Datasheet], [Ion-Series Datasheet]

• Question 9:

  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
  A. VM-Series firewalls

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  Explanation/Reference:

  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. References: 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 10:

  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
  B. Bootstrap
  C. Service Cluster

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  Explanation/Reference:

  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. References: 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]