Free Practice Questions for Paloalto Networks Practitioner Exam

Prisma Access is a cloud-delivered security platform that provides policy enforcement, secure access, and threat prevention for mobile users and remote networks, ensuring consistent security regardless of location.

Application allow listing is a security practice that permits only pre-approved (trusted) applications, files, and processes to run on a system. This approach helps prevent unauthorized or malicious software from executing, thereby reducing the attack surface.

A CI/CD platform is a comprehensive set of tools that help developers, engineers, and DevOps practitioners package and deliver software to the end users. A CI/CD platform automates the process of software testing and deployment, and enables faster and more reliable software releases. Jenkins is a popular open source CI/CD platform that supports a wide range of plugins and integrations to build, test, and deploy various types of applications. Jenkins can be configured to run on different platforms, such as Linux, Windows, or Docker, and can work with various version control systems, such as Git, SVN, or Mercurial. Jenkins can also orchestrate complex workflows, such as parallel or sequential execution, conditional branching, or parameterized triggering, using a graphical interface or a declarative syntax. Jenkins can help developers and DevOps teams achieve continuous integration and continuous delivery/deployment, by providing features such as:

•Pipeline as code: Jenkins allows users to define and manage their pipelines as code, using a domain-specific language (DSL) called Jenkinsfile. This enables users to store, version, and reuse their pipeline configurations, and to apply best practices such as code review and testing.

•Distributed builds: Jenkins can scale up or down to meet the demand of concurrent builds, by distributing the workload across multiple agents or nodes. This improves the performance and efficiency of the CI/CD process, and allows users to leverage different environments and resources for different stages of the pipeline.

•Plugin ecosystem: Jenkins has a rich and active community that contributes to its plugin ecosystem, which extends its functionality and compatibility with various tools and technologies. Users can find and install plugins from the Jenkins Plugin Manager, or create their own custom plugins using Java or Groovy.

•Blue Ocean: Jenkins offers a modern and user-friendly web interface called Blue Ocean, which simplifies the creation and visualization of pipelines. Blue Ocean provides features such as real-time feedback, interactive editing, branch and pull request support, and integration with popular chat platforms, such as Slack or Microsoft Teams.

Multiple policies, no policy reconciliation tools: Sequential traffic analysis (stateful inspection, application control, intrusion prevention system (IPS), anti-malware, etc.) in traditional data center security solutions requires a corresponding security policy or profile, often using multiple management tools. The result is that your security policies become convoluted as you build and manage a firewall policy with source, destination, user, port, and action; an application control policy with similar rules; and any other threat prevention rules required. Multiple security policies that mix positive (firewall) and negative (application control, IPS, and anti-malware) control models can cause security holes by missing traffic and/or not identifying

Morphing code, also known as polymorphism, allows advanced malware to change its code structure with each iteration or infection. This makes it extremely difficult for traditional signature-based detection tools to recognize and block the malware consistently.

North-South traffic refers to the data packets that move between the virtualized environment and the external network, such as the internet or a traditional data center. This traffic typically involves requests from clients to access applications or services hosted on virtual machines (VMs) or containers, or responses from those VMs or containers to the clients. North-South traffic can also include management or monitoring traffic from external devices to the virtualized environment. References: Fundamentals of Cloud Security, East-West and North-South Traffic Security, What is the meaning / origin of the terms north-south and east-west traffic?

Signature-based systems struggle with polymorphic or obfuscated malware, which changes its code to avoid detection. Signature-based detection relies on static databases of known threat signatures, limiting its ability to identify new or unknown threats.

Stateful packet inspection firewalls Second-generation stateful packet inspection (also known as dynamic packet filtering) firewalls have the following characteristics:

● They operate up to Layer 4 (Transport layer) of the OSI model and maintain state information about the communication sessions that have been established between hosts on the trusted and untrusted networks.

● They inspect individual packet headers to determine source and destination IP address, protocol (TCP, UDP, and ICMP), and port number (during session establishment only) to

determine whether the session should be allowed, blocked, or dropped based on configured

firewall rules.

● After a permitted connection is established between two hosts, the firewall creates and

deletes firewall rules for individual connections as needed, thus effectively creating a tunnel that allows traffic to flow between the two hosts without further inspection of individual packets during the session.

● This type of firewall is very fast, but it is port-based and it is highly dependent on the

trustworthiness of the two hosts because individual packets aren’t inspected after the

connection is established.

The IP stack adds source (sender) and destination (receiver) IP addresses to the TCP segment (which now is called an IP packet) and notifies the server operating system that it has an outgoing message ready to be sent across the network.

The Anthem data breach of 2015 was caused by a phishing scheme that captured a database administrator’s password. According to the U.S. Department of Health and Human Services (HHS) Office for Civil Rights (OCR), hackers sent phishing emails to an Anthem subsidiary. At least one employee responded. Attackers were able to plant malware on the company’s system and gain remote access to confidential information1. The breach exposed the electronic protected health information of almost 79 million people, including names, Social Security numbers, medical identification numbers, addresses, dates of birth, email addresses, and employment information2. References:

Anthem Pays OCR $16 Million in Record HIPAA Settlement Following Largest U.S. Health Data Breach

How Anthem Data Breach Exposed Personnel Records - IDStrong