DevOps is not:

● A combination of the Dev and Ops teams: There still are two teams; they just operate

in a communicative, collaborative way.

● Its own separate team: There is no such thing as a “DevOps engineer.” Although some

companies may appoint a “DevOps team” as a pilot when trying to transition to a

DevOps culture, DevOps refers to a culture where developers, testers, and operations

personnel cooperate throughout the entire software delivery lifecycle.

● A tool or set of tools: Although there are tools that work well with a DevOps model or

help promote DevOps culture, DevOps ultimately is a strategy, not a tool.

● Automation: Although automation is very important for a DevOps culture, it alone does

not define DevOps.

Prisma Cloud comprises four pillars:

● Visibility, governance, and compliance. Gain deep visibility into the security posture of

multicloud environments. Track everything that gets deployed with an automated asset

inventory, and maintain compliance with out-of-the-box governance policies that

enforce good behavior across your environments.

● Compute security. Secure hosts, containers, and serverless workloads throughout the

application lifecycle. Detect and prevent risks by integrating vulnerability intelligence into

your integrated development environment (IDE), software configuration management

(SCM), and CI/CD workflows. Enforce machine learning-based runtime protection to

protect applications and workloads in real time.

● Network protection. Continuously monitor network activity for anomalous behavior,

enforce microservice-aware micro-segmentation, and implement industry-leading

firewall protection. Protect the network perimeter and the connectivity between

containers and hosts.

● Identity security. Monitor and leverage user and entity behavior analytics (UEBA) across

your environments to detect and block malicious actions. Gain visibility into and enforce

governance p

Knowledge-based systems and behavior-based systems are two types of artificial intelligence systems that can be used for security purposes. Knowledge-based systems use a predefined database of rules, facts, and patterns that distinguish “bad” or malicious activities from normal ones. They compare the incoming data with the stored knowledge and flag any anomalies or matches. Behavior-based systems, on the other hand, learn from the observed data and establish a baseline of normal behavior. They then monitor the data for any deviations or changes from the baseline and alert on any suspicious or abnormal activities. References:

• Types of Knowledge-Based Systems - Springer

• Difference between Knowledge-based IDS and behavior-based IDS

• Behaviour-based Knowledge Systems: An Epigenetic Path from Behaviour to …

According to the NIST definition of cloud computing 1 , there are three service models for cloud computing: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). In the SaaS model, the cloud provider delivers the software applications over the internet, and the users access them from various devices through a web browser or a program interface. The cloud provider manages the underlying infrastructure, including the servers, databases, and code of the applications. The users do not need to install, update, or maintain the software, and they only pay for the service they use. The scenario described in the question is an example of the SaaS model, as the user is provided access over the internet to an application running on a cloud infrastructure, and the vendor hosts and maintains the servers, databases, and code of that application.  References :

SP 800-145, The NIST Definition of Cloud Computing | CSRC

Final Version of NIST Cloud Computing Definition Published

NIST Cloud Computing Program - NCCP | NIST

SaaS - User responsible for only the data, vendor responsible for rest

 A demilitarized zone (DMZ) is a portion of an enterprise network that sits behind a firewall but outside of or segmented from the internal network 1 .  The DMZ typically hosts public services, such as web, mail, and domain servers, that can be accessed by traffic from the internet 1 .  However, the DMZ is isolated from the internal network by another firewall or security gateway, which prevents unauthorized access to the private network 2 . Therefore, statements A and D are true about servers in a DMZ, while statements B and C are false.  References :

What is a Demilitarized Zone (DMZ)? | F5

Demilitarized Zones (DMZs) - Secure Network Architecture - CompTIA …

From a business perspective, XDR platforms enable organizations to prevent successful cyberattacks as well as simplify and strengthen security processes.

 An exploit is a type of malware that takes advantage of a vulnerability on an endpoint or server to execute malicious code, gain unauthorized access, or perform other malicious actions.  Exploits can be categorized into known and unknown (i.e., zero-day) exploits, depending on whether the vulnerability is publicly disclosed or not 1 2 .  Exploits can target various types of software, such as operating systems, browsers, applications, or network devices 3 .  References :  Malware vs. Exploits ,  Top Routinely Exploited Vulnerabilities ,  12 Types of Malware + Examples That You Should Know ,  Palo Alto Networks Certified Cybersecurity Entry-level Technician