PCCET Palo Alto Networks Certified Cybersecurity Entry-level Technician Questions and Answers

Software patches are updates that fix bugs, vulnerabilities, or performance issues in applications. Applying software patches regularly is one of the best practices to secure applications against exploits, as it prevents attackers from taking advantage of known flaws in the software. Software patches can also improve the functionality and compatibility of applications, as well as address any security gaps that may arise from changes in the operating system or other software components. Endpoint security solutions, such as Cortex XDR, can help organizations automate and streamline the patch management process, ensuring that all endpoints are up to date and protected from exploits. References:

• Endpoint Protection - Palo Alto Networks
• Endpoint Security - Palo Alto Networks
• Patch Management - Palo Alto Networks

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

Originally designed as a tool to assist organizations with compliance and industry-specific regulations, security information and event management (SIEM) is a technology that has been around for almost two decades

 A sanctioned application is an application that is approved by the IT department and meets the security and compliance requirements of the organization. Sanctioned applications are allowed to access the organization’s network and data and are monitored and protected by the IT department. Examples of sanctioned applications are Office 365, Salesforce, and Zoom. Sanctioned applications are different from unsanctioned, prohibited, and tolerated applications, which are not approved by the IT department and may pose security risks to the organization. Unsanctioned applications are applications that are used by the employees without the IT department’s knowledge or consent, such as Dropbox, Gmail, or Facebook. Prohibited applications are applications that are explicitly forbidden by the IT department, such as BitTorrent, Tor, or malware. Tolerated applications are applications that are not approved by the IT department, but are not blocked or restricted, such as Skype, Spotify, or YouTube. References: Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET), Cloud Security Fundamentals - Module 4: Cloud Security Best Practices, Application Visibility and Control

A credit card number is an example of PII that you need to prevent from leaving your enterprise network. PII, or personally identifiable information, is any information that can be used to identify an individual, either alone or in combination with other data. PII can be sensitive or non-sensitive, depending on the level of protection required and the potential harm if exposed. Sensitive PII includes data that can directly identify an individual and cause significant harm if leaked or stolen, such as financial information, medical records, or government-issued ID numbers. Non-sensitive PII includes data that is easily accessible from public sources and does not pose a high risk of identity theft, such as zip code, race, or gender. A credit card number is a sensitive PII because it can be used to access the cardholder’s account, make fraudulent transactions, or steal their identity. Therefore, it is important to prevent credit card numbers from leaving the enterprise network, where they could be intercepted by hackers, malicious insiders, or third parties. To protect credit card numbers and other sensitive PII, enterprises should implement data security measures such as encryption, tokenization, masking, access control, auditing, and monitoring. Additionally, enterprises should comply with data privacy laws and standards that regulate the collection, use, and protection of PII, such as the Payment Card Industry Data Security Standard (PCI DSS), the General Data Protection Regulation (GDPR), or the California Consumer Privacy Act (CCPA). References:

• What is PII? Examples, laws, and standards | CSO Online
• What is Personally Identifiable Information (PII)? | IBM
• What Is Personally Identifiable Information (PII)? Types and Examples
• What is PII (personally identifiable information)? - Cloudflare
• What is Personally Identifiable Information (PII)? - Data Privacy Manager

Command and Control: Attackers establish encrypted communication channels back to command-and-control (C2) servers across the internet so that they can modify their attack objectives and methods as additional targets of opportunity are identified within the victim network, or to evade any new security countermeasures that the organization may attempt to deploy if attack artifacts are discovered.

App-ID™ technology leverages the power of the broad global community to provide continuous identification, categorization, and granular risk-based control of known and previously unknown SaaS applications, ensuring new applications are discovered automatically as they become popular.

Phishing is a type of email attack where the attacker sends a lot of malicious emails in an untargeted way, pretending to be a trusted source, such as a bank or an online retailer, to trick users into revealing sensitive information, such as passwords or credit card numbers. Attackers use the information to steal money or to launch other attacks. A fake email from a bank asking you to click a link and verify your account details is an example of phishing1 References:

• 1: Palo Alto Networks Certified Cybersecurity Entry-level Technician - Palo Alto Networks
• 2: 10 Palo Alto Networks PCCET Exam Practice Questions - CBT Nuggets
• 3: Types of Email Attacks - Examples and Consequences - Tessian
• 4: What Is a Phishing Attack? Definition and Types - Cisco

NAT stands for Network Address Translation, which is a process that allows devices on a private network to communicate with devices on a public network, such as the Internet. NAT translates the private IP addresses of the devices on the private network to public IP addresses that can be routed on the public network. This way, multiple devices on the private network can share a single public IP address and access the Internet. NAT also provides security benefits, as it hides the internal network structure and IP addresses from the outside world. References: Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET), Fundamentals of Network Security, Network Address Translation (NAT)

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 static route is a manually configured route that specifies the destination network and the next hop IP address or interface to reach it. A static route does not depend on any routing protocol and remains in the routing table until it is removed or overridden. Static routes are useful for defining default routes, reaching stub networks, or providing backup routes in case of link failures. To configure a static route in a virtual router on a Palo Alto Networks firewall, you need to specify the name, destination, interface, and next hop IP address or virtual router of the route. References: Configure a Static Route in Virtual Routers, Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET), FREE Cybersecurity Education Courses

Cybercriminals are attackers who act independently or as part of an unlawful organization, such as a crime syndicate or a hacker group. Their main motivation is to make money by exploiting vulnerabilities in systems, networks, or applications. They use various methods, such as ransomware, phishing, identity theft, fraud, or botnets, to steal data, extort victims, or disrupt services. Cybercriminals often target individuals, businesses, or institutions that have valuable or sensitive information, such as financial, personal, or health data. Cybercriminals are constantly evolving their techniques and tools to evade detection and countermeasures. They may also collaborate with other cybercriminals or hire hackers to perform specific tasks. References:

• Cybersecurity Threats: Cybercriminals
• Attackers Profile

Personally identifiable information (PII) is any data that can be used to identify someone. All information that directly or indirectly links to a person is considered PII1. Among PII, some pieces of information are more sensitive than others. Sensitive PII is sensitive information that directly identifies an individual and could cause significant harm if leaked or stolen2. Birthplace and name are examples of sensitive PII, as they can be used to distinguish or trace an individual’s identity, either alone or when combined with other information3. Login 10 and profession are not considered sensitive PII, as they are not unique to a person and do not reveal their identity. Login 10 is a non-sensitive PII that is easily accessible from public sources, while profession is not a PII at all, as it does not link to a specific individual4. References:

• 1: What is PII (personally identifiable information)? - Cloudflare
• 2: What is Personally Identifiable Information (PII)? | IBM
• 3: personally identifiable information - Glossary | CSRC
• 4: What Is Personally Identifiable Information (PII)? Types and Examples

"In serverless apps, the developer uploads only the app package itself, without a full container image or any OS components. The platform dynamically packages it into an image, runs the image in a container, and (if needed) instantiates the underlying host OS and VM and the hardware required to run them."

HTTPS is a protocol that encrypts and secures the communication between web browsers and servers. HTTPS uses SSL or TLS certificates to establish a secure connection and prevent unauthorized access or tampering of data. HTTPS typically uses port 443, which is the default port for HTTPS connections. Port 443 is different from port 80, which is the default port for HTTP connections. HTTP is an unencrypted and insecure protocol that can expose sensitive information or allow malicious attacks. Port 443 is also different from port 5050, which is a common port for some applications or services, such as Yahoo Messenger or SIP. Port 5050 is not associated with HTTPS and does not provide any encryption or security. Port 443 is also different from port 25, which is the default port for SMTP, the protocol used for sending and receiving emails. Port 25 is not associated with HTTPS and does not encrypt the email content or headers. References:

•Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET) - Palo Alto Networks

•HTTPS Protocol: What is the Default Port for SSL & Common TCP Ports

•What is HTTPS? | Cloudflare

•Can I use another port other than 443 for HTTPS/SSL communication?

Phishing is a type of attack that involves sending fraudulent emails that appear to be from legitimate sources, such as banks, companies, or individuals, in order to trick recipients into clicking on malicious links, opening malicious attachments, or providing sensitive information12. The link to a malware website in the email is an example of a malicious link, which may lead to the installation of malware, ransomware, spyware, or other malicious software on the user’s device, or the redirection to a fake website that mimics a legitimate one, where the user may be asked to enter their credentials, personal information, or financial details34. Phishing emails often use social engineering techniques, such as creating a sense of urgency, curiosity, or fear, to persuade the user to click on the link or attachment, or to reply to the email5. Phishing emails may also spoof the sender’s address, domain, or logo, to make them look more authentic and trustworthy6.

Whaling, pharming, and spam are not the correct answers for this question. Whaling is a specific type of phishing that targets high-profile individuals, such as executives, celebrities, or politicians, with the aim of stealing their confidential information or influencing their decisions7. Pharming is a type of attack that involves redirecting the user’s web browser to a fake website, even if they enter the correct URL, by modifying the DNS server or the user’s hosts file. Spam is the unsolicited or unwanted electronic messages, such as emails, texts, or instant messages, that are sent in bulk to a large number of recipients, usually for advertising, marketing, or scamming purposes. References:

• What is phishing? | Malwarebytes
• Phishing - Wikipedia
• Don’t Panic! Here’s What To Do If You Clicked On A Phishing Link
• How can Malware spread through Email and How to Protect
• What is phishing? How this cyber attack works and how to prevent it …
• Identifying Illegitimate Email Links | Division of Information Technology
• What is whaling? | NortonLifeLock
• [What is pharming? | NortonLifeLock]
• [What is spam? | NortonLifeLock]

A stateless firewall is a network firewall that primarily filters traffic based on source and destination IP address, as well as port numbers and protocols. A stateless firewall does not keep track of the state or context of network connections, and only inspects packet headers. A stateless firewall is faster and simpler than a stateful firewall, but it is less secure and flexible. A stateless firewall cannot block complex attacks or inspect packet contents for malicious payloads. References: What Is a Packet Filtering Firewall? - Palo Alto Networks, Common IP Filtering Techniques – APNIC, What is IP filtering? - Secure Network Traffic Management

Virtualization improves the availability of IT systems and resources by enabling features such as12:

• Resource optimization: Virtualization allows multiple virtual instances to share the same physical infrastructure, reducing hardware costs and increasing resource utilization.
• Scalability: Virtualization enables rapid provisioning and deprovisioning of virtual instances, allowing organizations to scale up or down their IT capacity according to demand.
• Disaster recovery: Virtualization facilitates backup and replication of virtual instances, allowing organizations to restore their IT systems and data in the event of a disaster or outage.
• Fault tolerance: Virtualization supports high availability and load balancing of virtual instances, ensuring that IT systems and services remain operational even if one or more virtual instances fail. References: Virtualization Benefits: How Virtualization Improves Efficiency and Security | VMware, Virtualization Security - A Complete Guide - CyberExperts.com

 In the given network diagram, device D is depicted as a cloud symbol, which is commonly used to represent the internet in network diagrams. The router is typically connected to the internet and acts as a gateway for internal network devices to access external networks. Therefore, device D is the router in this context. References: Virtual Router Overview - Palo Alto Networks | TechDocs, Networking (UDRs) in Azure: Inserting the VM-Series into an Azure …, Setting Up the PA-200 for Home and Small Office - Palo Alto Networks …

To deliver secure east-west flows and secure Kubernetes workloads in a public cloud environment, you have two deployment options available: VM-Series and CN-Series.

• VM-Series is a virtualized form factor of the Palo Alto Networks next-generation firewall that can be deployed in public cloud platforms such as AWS, Azure, Google Cloud, and Oracle Cloud. VM-Series provides comprehensive network security and threat prevention capabilities for protecting your cloud workloads and applications from cyberattacks. VM-Series can also integrate with native cloud services and third-party tools to enable automation, orchestration, and visibility across your cloud environment. VM-Series supports various deployment scenarios, such as securing internet-facing applications, protecting hybrid connectivity, segmenting internal networks, and enabling secure DevOps12.
• CN-Series is a containerized form factor of the Palo Alto Networks next-generation firewall that can be deployed in Kubernetes environments. CN-Series provides granular network security and threat prevention capabilities for protecting your Kubernetes pods and namespaces from cyberattacks. CN-Series can also integrate with Kubernetes network plugins and services to enable dynamic policy enforcement, service discovery, and visibility across your Kubernetes clusters. CN-Series supports various deployment scenarios, such as securing ingress and egress traffic, enforcing microsegmentation, and enabling secure DevSecOps34.

References:

• VM-Series in Public Cloud
• VM-Series Deployment Guide
• CN-Series in Kubernetes
• CN-Series Deployment Guide

OSPF is a link-state routing protocol that requires all routers in the same domain to maintain a map of the network. This map is called the link-state database (LSDB) and it contains information about the topology and the state of each link. Each router independently calculates the shortest path to every destination in the network using the Dijkstra algorithm. OSPF routers exchange routing information by flooding link-state advertisements (LSAs) to their neighbors. LSAs are acknowledged by the receivers to ensure reliable delivery12. References:

• What Is OSPF? Understanding Network Protocols By WireX Systems
• Routing Protocols Overview - Global Knowledge

"Remember that a trust zone is not intended to be a “pocket of trust” where systems (and therefore threats) within the zone can communicate freely and directly with each other. For a full Zero Trust implementation, the network would be configured to ensure that all communications traffic, including traffic between devices in the same zone, is intermediated by the corresponding Zero Trust Segmentation Platform."

● Benign: Safe and does not exhibit malicious behavior

● Grayware: No security risk but might display obtrusive behavior (for example, adware,

spyware, and browser helper objects)

● Malware: Malicious in nature and intent and can pose a security threat (for example,

viruses, worms, trojans, root kits, botnets, and remote-access toolkits)

● Phishing: Malicious attempt to trick the recipient into revealing sensitive data

Security Operations (SecOps) is the process of coordinating and aligning security teams and IT teams to improve the security posture of an organization. SecOps involves implementing and maintaining security controls, technologies, policies, and procedures to protect the organization from cyber threats and incidents. When dealing with a known attack, SecOps must take the following action: document, monitor, and track the incident. This action is important because it helps SecOps to:

•Record the details of the attack, such as the source, target, impact, timeline, and response actions.

•Monitor the status and progress of the incident response and recovery efforts, as well as the ongoing threat activity and indicators of compromise.

•Track the performance and effectiveness of the security controls and technologies, as well as the lessons learned and improvement opportunities. References:

•Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET)

•6 Incident Response Steps to Take After a Security Event - Exabeam

•Dealing with Cyber Attacks–Steps You Need to Know | NIST

page 173 "AutoFocus makes over a billion samples and sessions, including billions of artifacts, immediately actionable for security analysis and response efforts. AutoFocus extends the product portfolio with the global threat intelligence and attack context needed to accelerate analysis, forensics, and hunting workflows. Together, the platform and AutoFocus move security teams away from legacy manual approaches that rely on aggregating a growing number of detectionbased alerts and post-event mitigation, to preventing sophisticated attacks and enabling proactive hunting activities."

 Connectors and interfaces are the components that enable a SIEM to collect, process, and analyze data from various sources, such as Microsoft 365 services and applications1, cloud platforms, network devices, and security solutions. Connectors are responsible for extracting and transforming data from the source systems, while interfaces are responsible for sending and receiving data to and from the SIEM server. Without connectors and interfaces, a SIEM cannot operate correctly and ensure a translated flow from the system of interest to the SIEM data lake. References:

• SIEM server integration with Microsoft 365 services and applications
• What Is SIEM Integration? 2024 Comprehensive Guide - SelectHub
• SIEM Connector - docs.metallic.io
• SIEM Connector

A SASE solution converges networking and security services into one unified, cloud-delivered solution (see Figure 3-12) that includes the following:

● Networking

○ Software-defined wide-area networks (SD-WANs)

○ Virtual private networks (VPNs)

○ Zero Trust network access (ZTNA)

○ Quality of Service (QoS)

● Security

○ Firewall as a service (FWaaS)

○ Domain Name System (DNS) security

○ Threat prevention

○ Secure web gateway (SWG)

○ Data loss prevention (DLP)

○ Cloud access security broker (CASB)

"Or split tunneling can be configured to allow internet traffic from the device to go directly to the internet, while other specific types of traffic route through the IPsec tunnel, for acceptable protection with much less performance degradation."

A botnet is a network of computers or devices that are infected by malware and controlled by a malicious actor, known as the botmaster or bot-herder. The botmaster uses a command and control (C2) server or channel to send instructions to the bots and receive information from them. The C2 communication is essential for the botmaster to maintain control over the botnet and use it for various malicious purposes, such as launching distributed denial-of-service (DDoS) attacks, stealing data, sending spam, or mining cryptocurrency. Therefore, the key to “taking down” a botnet is to prevent the bots from communicating with the C2 server or channel. This can be done by disrupting, blocking, or hijacking the C2 communication, which can render the botnet ineffective, unstable, or inaccessible. For example, security researchers or law enforcement agencies can use techniques such as sinkholing, domain name system (DNS) poisoning, or domain seizure to redirect the bot traffic to a benign server or a dead end, cutting off the connection between the bots and the botmaster. Alternatively, they can use techniques such as reverse engineering, decryption, or impersonation to infiltrate the C2 server or channel and take over the botnet, either to disable it, monitor it, or use it for good purposes. References:

• What is a Botnet? - Palo Alto Networks
• Botnet Detection and Prevention Techniques | A Quick Guide - XenonStack
• Botnet Mitigation: How to Prevent Botnet Attacks in 2024 - DataDome
• What is a Botnet? Definition and Prevention | Varonis

Playbooks are collections of workflows that automate and orchestrate tasks, alerts, and responses to incidents. Playbooks are triggered by rules or incidents and can coordinate across technologies, security teams, and external users for centralized data visibility and action. Playbooks can help improve the efficiency and effectiveness of security operations by reducing manual work, streamlining processes, and enhancing collaboration. References: What Is SOAR? - Palo Alto Networks, What Is SOAR? Technology and Solutions | Microsoft Security, How SecOps can help solve these 6 key MSSP conundrums - Google Cloud

In anti-malware, a false positive incorrectly identifies a legitimate file or application as malware. A false negative incorrectly identifies malware as a legitimate file or application. In intrusion detection, a false positive incorrectly identifies legitimate traffic as a threat, and a false negative incorrectly identifies a threat as legitimate traffic.

Cortex XDR is a detection and response platform that natively integrates network, endpoint, and cloud data to stop sophisticated attacks. A key benefit of Cortex XDR is that it acts as a safety net during an attack while patches are developed. Cortex XDR uses machine learning and behavioral analytics to detect and validate threats, and automatically reveals the root cause of alerts to speed up investigations. Cortex XDR also enables flexible and rapid response actions to contain and remediate threats across the environment. References: Cortex XDR- Extended Detection and Response - Palo Alto Networks, What is Cortex XDR | Palo Alto Networks, Cortex XDR Datasheet - Palo Alto Networks

Selective network security virtualization: Intra-host communications and live migrations are architected at this phase. All intra-host communication paths are strictly controlled to ensure that traffic between VMs at different trust levels is intermediated either by an on-box, virtual security appliance or by an off-box, physical security appliance.

An AAAA record is a type of DNS record that maps a domain name or a subdomain to an IPv6 address. IPv6 is the latest version of the Internet Protocol (IP) that uses 128-bit addresses to identify devices on the internet. An AAAA record is similar to an A record, which maps a domain name or a subdomain to an IPv4 address, but with a different format and length. An example of an AAAA record is:

example-website.com. IN AAAA 2001:db8::1234

In the example above, the record is made up of the following elements:

• example-website.com.: The domain name or the subdomain that is mapped to an IPv6 address.
• IN: The class of the record, which indicates that it is on the internet.
• AAAA: The type of the record, which indicates that it is an IPv6 address record.
• 2001:db8::1234: The IPv6 address that is mapped to the domain name or the subdomain. The address is written in hexadecimal notation, with colons separating each 16-bit segment. Double colons (::) can be used to compress consecutive zero segments.

References:

• Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET) - Palo Alto Networks
• DNS AAAA record | Cloudflare
• What’s an AAAA record? - DNSimple Help
• List of DNS record types - Wikipedia

Data security is the only type of security that the customer is fully responsible for when using a SaaS application. Data security refers to the protection of data from unauthorized access, use, modification, deletion, or disclosure. Data security includes aspects such as encryption, backup, recovery, access control, and compliance12. The customer is responsible for ensuring that their data is secure in transit and at rest, and that they comply with any applicable regulations or policies regarding their data.

The other types of security - physical, platform, and infrastructure - are the responsibility of the SaaS provider. Physical security refers to the protection of the hardware and facilities that host the SaaS application. Platform security refers to the protection of the software and services that run the SaaS application. Infrastructure security refers to the protection of the network and systems that support the SaaS application. The SaaS provider is responsible for ensuring that these layers of security are maintained and updated, and that they meet the required standards and certifications34. References:

• SaaS and the Shared Security Model
• A Guide to SaaS Shared Responsibility Model
• The Shared Responsibility Model for Security in The Cloud (IaaS, PaaS & SaaS)
• Shared responsibility in the cloud

 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

 A zero-day threat is an attack that takes advantage of a security vulnerability that does not have a fix in place. It is referred to as a “zero-day” threat because once the flaw is eventually discovered, the developer or organization has “zero days” to then come up with a solution. A zero-day threat can compromise a system or network by exploiting the unknown vulnerability, and can cause data loss, unauthorized access, or other damages. Zero-day threats are difficult to detect and prevent, and require advanced security solutions and practices to mitigate them. References:

• Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET)
• Zero-day (computing) - Wikipedia
• What is a zero-day exploit? | Zero-day threats | Cloudflare

Cortex XDR is an endpoint product from Palo Alto Networks that can help with SOC visibility by allowing you to rapidly detect and respond to threats across your networks, endpoints, and clouds. It assists SOC analysts by allowing them to view all the alerts from all Palo Alto Networks products in one place, and to perform root cause analysis and automated response actions. Cortex XDR also integrates with other Palo Alto Networks products, such as WildFire, AutoFocus, and Cortex Data Lake, to provide comprehensive threat intelligence and data enrichment12. References:

• SOC Services - Palo Alto Networks
• Endpoint Protection - Palo Alto Networks
• Security Operations | Palo Alto Networks
• Cortex - Palo Alto Networks

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.

Prisma Access provides firewall as a service (FWaaS) that protects branch offices from threats while also providing the security services expected from a next-generation firewall. The full spectrum of FWaaS includes threat prevention, URL filtering, sandboxing, and more.

 Border Gateway Protocol (BGP) is a protocol that enables ISPs and NSPs to exchange routing information among themselves. BGP is used to determine the best path for sending data packets across the Internet. BGP is also known as the protocol of the Internet backbone, as it connects different autonomous systems (ASes) that form the Internet. BGP is not used by end systems or local networks, but only by routers that operate at the border of ASes. BGP is a complex and dynamic protocol that can handle changes in network topology, traffic load, and policy requirements. BGP is also a scalable protocol that can support the growth of the Internet1234 References:

• 1: Internet service provider - Wikipedia
• 2: 1.8: Internet Backbones, NAPs, and ISPs - cs.huji.ac.il
• 3: Lecture Notes – Unit 2 How does the Internet work?
• 4: Border Gateway Protocol - Wikipedia