Palo Alto Networks PCSFE Practice Test - Questions Answers, Page 5

The two valid components that are used in installation of a VM-Series firewall in an OpenStack environment are:

OpenStack heat template in YAML Ain't Markup Language (YAML) format VM-Series qcow2 image

OpenStack is a cloud computing platform that provides infrastructure as a service (IaaS) for deploying and managing virtual machines (VMs) and other resources. OpenStack environment requires network security that can protect the traffic between VMs or other cloud services from cyberattacks and enforce granular security policies based on application, user, content, and threat information.

VM-Series firewall is a virtualized version of the Palo Alto Networks next-generation firewall that can be deployed on various cloud or virtualization platforms, including OpenStack. OpenStack heat template in YAML format is a valid component that is used in installation of a VM-Series firewall in an OpenStack environment. OpenStack heat template is a file that defines the resources and configuration for deploying and managing a VM-Series firewall instance on OpenStack. YAML is a human-readable data serialization language that is commonly used for configuration files. YAML format is supported for OpenStack heat templates for VM-Series firewalls. VM-Series qcow2 image is a valid component that is used in installation of a VM-Series firewall in an OpenStack environment.

VM-Series qcow2 image is a file that contains the software image of the VM-Series firewall for OpenStack. qcow2 is a disk image format that supports features such as compression, encryption, snapshots, and copy-on-write. qcow2 format is supported for VM-Series images for OpenStack.

OpenStack heat template in JSON format and VM-Series VHD image are not valid components that are used in installation of a VM-Series firewall in an OpenStack environment, as those are not supported formats for OpenStack heat templates or VM-Series images. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Deploy the VM-Series Firewall on OpenStack], [What is YAML?], [What is qcow2?]

VM-Series firewall is the software firewall that would assist a prospect who is interested in securing extensive DevOps deployments. DevOps is a set of practices that combines software development and IT operations to deliver software products faster and more reliably. DevOps deployments require network security that can protect the traffic between different stages of the software development lifecycle, such as development, testing, staging, and production, as well as between different cloud or virtualization platforms, such as public clouds, private clouds, or on-premises data centers. VMSeries firewall is a virtualized version of the Palo Alto Networks next-generation firewall that can be deployed on various cloud or virtualization platforms. VM-Series firewall can assist a prospect who is interested in securing extensive DevOps deployments by providing comprehensive security and visibility across hybrid and multi-cloud environments, protecting applications and data from cyberattacks, and supporting automation and orchestration tools that simplify and accelerate the deployment and configuration of firewalls across different platforms. CN-Series, Ion-Series, and Cloud next-generation firewall are not software firewalls that would assist a prospect who is interested in securing extensive DevOps deployments, but they are related solutions that can be deployed on specific platforms or environments. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [VM-Series Datasheet], [VM-Series Deployment Guide], [What is DevOps?]

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. CNSeries 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.

Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [CN-Series Concepts], [CN-Series Deployment Guide for Native K8], [Threat Prevention Datasheet], [What is Exfiltration?]

Using the management interface as the HA1 backup link helps avoid split brain in active-passive high availability (HA) pair deployment. High availability (HA) is a feature that provides redundancy and failover protection for firewalls in case of hardware or software failure. Active-passive HA is a mode of HA that consists of two firewalls in a pair, where one firewall is active and handles all traffic, while the other firewall is passive and acts as a 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. Using the management interface as the HA1 backup link helps avoid split brain in active-passive HA pair deployment. The HA1 interface is used for exchanging HA state information and configuration synchronization between the firewalls.

Using the management interface as the HA1 backup link provides redundancy and failover protection for the HA1 interface, ensuring that the firewalls can maintain their HA communication and avoid split brain. Using a standard traffic interface as the HA2 backup, enabling preemption on both firewalls in the HA pair, or using a standard traffic interface as the HA3 link do not help avoid split brain in active-passive HA pair deployment, but they are related features that can enhance performance and reliability. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [High Availability Overview], [Configure HA Backup Links], [Configure Heartbeat Backup]

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. Reference: [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]

Prisma Cloud Compute offers workload security at runtime by automatically building an allow-list security model for every container and service. Workload security is a type of security that protects applications and data from cyberattacks across different stages of the software development lifecycle, such as development, testing, staging, and production. Runtime security is a type of security that monitors and analyzes workload behavior in real time to detect and prevent malicious activities or anomalous behaviors. Prisma Cloud Compute is a cloud-native solution that provides comprehensive security and visibility across hybrid and multi-cloud environments, covering hosts, containers, serverless functions, and web applications. Prisma Cloud Compute offers workload security at runtime by automatically building an allow-list security model for every container and service, which defines the expected network connections, processes, file system activity, and system calls for each workload based on its baseline behavior. Prisma Cloud Compute then enforces the allow-list security model and blocks any deviations or violations from the expected behavior. Prisma Cloud Compute does not quarantine containers that demonstrate increased CPU and memory usage, automatically patch vulnerabilities and compliance issues for every container and service, or work with the identity provider (IdP) to identify overprivileged containers and services and restrict network access, as those are not methods or features of Prisma Cloud Compute for workload security at runtime. Reference: [Palo Alto Networks Certified Software Firewall Engineer (PCSFE)], [Prisma Cloud Compute Datasheet], [Prisma Cloud Compute Overview], [Prisma Cloud Compute Runtime Defense]