Free Paloalto Networks PCCET Practice Exam with Questions & Answers | Set: 3

To find the subnet that the host 192.168.19.36/27 belongs to, we need to convert the IP address and the subnet mask to binary form and perform a logical AND operation. The /27 notation means that the subnet mask has 27 bits of ones and 5 bits of zeros. In decimal form, the subnet mask is 255.255.255.224. The binary form of the IP address and the subnet mask are:

IP address: 11000000.10101000.00010011.00100100 Subnet mask: 11111111.11111111.11111111.11100000

The logical AND operation gives us the network prefix:

Network prefix: 11000000.10101000.00010011.00100000

To get the subnet address, we convert the network prefix back to decimal form:

Subnet address: 192.168.19.32

The subnet address is the first address in the subnet range. To find the last address in the subnet range, we flip the bits of the subnet mask and perform a logical OR operation with the network prefix:

Flipped subnet mask: 00000000.00000000.00000000.00011111 Logical OR: 11000000.10101000.00010011.00111111

The last address in the subnet range is:

Last address: 192.168.19.63

The subnet range is from 192.168.19.32 to 192.168.19.63. The host 192.168.19.36 belongs to this subnet. Therefore, the correct answer is B. 192.168.19.16, which is the second address in the subnet range.

References:

• IP Subnet Calculator
• Subnet Calculator - IP and CIDR
• Which subnet does the host 192.168.19.36/27 belong? - VCEguide.com

 A cloud native security platform (CNSP) is a set of security practices and technologies designed specifically for applications built and deployed in cloud environments. It involves a shift in mindset from traditional security approaches, which often rely on network-based protections, to a more application-focused approach that emphasizes identity and access management, container security and workload security, and continuous monitoring and response. A CNSP offers three main benefits for cloud native applications:

• Agility: A CNSP enables faster and more frequent delivery of software updates, as security is built into the application and infrastructure from the ground up, rather than added on as an afterthought. This allows for seamless integration of security controls into the continuous integration/continuous delivery (CI/CD) pipeline, reducing the risk of security gaps or delays. A CNSP also leverages automation and orchestration to simplify and streamline security operations, such as configuration, patching, scanning, and remediation.
• Digital transformation: A CNSP supports the adoption of cloud native technologies, such as microservices, containers, serverless, and platform as a service (PaaS), which enable greater scalability, deployability, manageability, and performance of cloud applications. These technologies also allow for more innovation and experimentation, as developers can easily create, test, and deploy new features and functionalities. A CNSP helps to protect these cloud native architectures from threats and vulnerabilities, while also ensuring compliance with regulations and standards.
• Flexibility: A CNSP provides consistent and comprehensive security across different cloud environments, such as public, private, and multi-cloud. It also allows for customization and adaptation of security policies and controls to suit the specific needs and preferences of each application and organization. A CNSP can also integrate with other security tools and platforms, such as firewalls, endpoint protection, threat intelligence, and security information and event management (SIEM), to provide a holistic and unified view of the security posture and risk level of cloud applications.

References:

• What Is a Cloud Native Security Platform?
• What Is Cloud-Native Security?
• All You Need to Know About Cloud Native Security
• Top Five Benefits of Cloud Native Application Security

Web 2.0 applications provide the type of service known as Software as a Service (SaaS). SaaS is a cloud computing model that allows users to access and use web-based applications over the internet, without having to install or maintain any software on their own devices. SaaS applications are hosted and managed by a third-party provider, who is responsible for the security, performance, availability, and updates of the software. SaaS applications are typically accessed through a web browser or a mobile app, and offer features such as user-generated content, social networking, collaboration, and interoperability. Examples of Web 2.0 SaaS applications include Facebook, X, Wikipedia, Gmail, and Salesforce. References:

• What Is Web 2.0? Definition, Impact, and Examples - Investopedia
• Web 2.0 - Wikipedia
• [What is SaaS? Software as a service (SaaS) definition - Salesforce.com]

A Jasager attack is a type of wireless man-in-the-middle attack that exploits the way mobile devices search for known wireless networks. A Jasager device will respond to any beacon request from a mobile device by saying “Yes, I’m here”, pretending to be one of the preferred networks. This way, the Jasager device can trick the mobile device into connecting to it, without the user’s knowledge or consent. The Jasager device can then intercept, modify, or redirect the traffic of the victim. For this attack to work, the attacker needs to be within close proximity of the victim, and the victim must have at least one known network in their preferred list. The victim does not need to manually choose the attacker’s access point, nor does the attacker try to get victims to connect at random. References: Wireless Man in the Middle - Palo Alto Networks, Man-in-the-middle attacks with malicious & rogue Wi-Fi access points - Privacy Guides

CaaS, or Containers-as-a-Service, is a cloud service that allows users to manage and deploy applications using containers and clusters. CaaS can be situated between IaaS and PaaS in the spread of cloud computing services, based on how much is managed by the vendor. IaaS, or Infrastructure-as-a-Service, provides the lowest level of abstraction, where users have to manage the servers, storage, network, and operating system. PaaS, or Platform-as-a-Service, provides a higher level of abstraction, where users only have to manage the application code and data. FaaS, or Function-as-a-Service, provides the highest level of abstraction, where users only have to manage the functions or logic of the application. CaaS falls in between IaaS and PaaS, as it provides users with more control over the container orchestration and configuration than PaaS, but also simplifies the infrastructure management and scaling than IaaS123. References:

• What is CaaS? from Red Hat
• Containers as a Service from Atlassian
• Container as a Service (CaaS) from GeeksforGeeks

Prisma SaaS connects directly to the applications themselves, therefore providing continuous silent monitoring of the risks within the sanctioned SaaS applications, with detailed visibility that is not possible with traditional security solutions.

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.

As containers grew in popularity and used diversified orchestrators such as Kubernetes (and its derivatives, such as OpenShift), Mesos, and Docker Swarm, it became increasingly important to deploy and operate containers at scale.

https://www.dynatrace.com/news/blog/kubernetes-vs-docker/

Containers are portable and lightweight alternatives to virtual machines that allow developers to package, isolate, and deploy applications across different cloud environments. Containers simplify the building and deploying of cloud native applications by providing consistent and efficient development, testing, and production environments. Containers also offer benefits such as rapid provisioning, high scalability, resource optimization, and security isolation. References:

• What are containerized applications? from Google Cloud
• What are containers and why do you need them? from IBM Developer
• Embracing containers for software-defined cloud infrastructure from Red Hat

 A local area network (LAN) is a network that connects end-user devices such as personal computers, printers, scanners, and phones within a small geographic area, such as an office, school, or home. LANs allow users to share resources, such as files, applications, and internet access, among the connected devices. LANs typically use Ethernet or Wi-Fi as the communication medium and operate at high speeds with low error rates. LANs are usually owned and managed by a single person or organization. References: LANs, WANs, and Other Area Networks Explained, What is a LAN? Local Area Network, Types of area networks - LAN, MAN and WAN