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The Cisco V-Edge Router performs QoS traffic classification on the ingress interface, before the traffic enters the VPN. The classification is based on the match criteria specified in the access lists, which can include the source and destination IP addresses, ports, protocols, DSCP values, and application-aware NBAR attributes. The classification results in assigning a forwarding class and a QoS group to each packet. The forwarding class determines the output queue and the scheduling policy for the packet on the egress interface. The QoS group is an internal label that can be used to remark the DSCP value of the packet or to match the packet in another access list for further processing. References:

• : Forwarding and QoS Configuration Guide for vEdge Routers, Cisco SD-WAN Release 20, Chapter 2: Configuring Localized Data Policy, https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/qos/vEdge-20-x/qos-book/localized-data-policy.html#id_1050591
• : Cisco SD-WAN Design Guide, Release 20, Chapter 6: Quality of Service, https://www.cisco.com/c/en/us/td/docs/solutions/CVD/SDWAN/2020/b_SD-WAN_Design_Guide_Aug_2020/b_SD-WAN_Design_Guide_Aug_2020_chapter_0110.html2

Cisco ISE configuration capabilities include the following features:

• ISE Deployment Assistant (IDA) is a built-in application designed to accelerate the deployment of Cisco Identity Service Engine (ISE). IDA guides the user through the initial setup, configuration, and verification of ISE with a step-by-step wizard. IDA also provides best practices and recommendations for common deployment scenarios, such as wireless, wired, VPN, guest, and BYOD1.
• Cisco ISE includes wireless setup wizard and visibility wizard. The wireless setup wizard simplifies the configuration of ISE for wireless access by automating the tasks of adding network devices, creating authorization profiles, and applying policies. The visibility wizard helps the user to enable device profiling and posture services, and to view the endpoint information and compliance status on the ISE dashboard2.
• ISE wizards and per-canned configurations ease ISE roll-out significantly. ISE wizards are interactive tools that assist the user in configuring various features and functions of ISE, such as certificates, network access devices, authentication and authorization policies, guest access, BYOD, and TrustSec. Per-canned configurations are predefined templates that provide common settings and values for ISE components, such as policy sets, authorization profiles, and network conditions. The user can apply these templates to quickly configure ISE for specific use cases, such as 802.1X, MAB, or web authentication3.

The other options, Cisco Active Advisor and ISE command line, are not accurate descriptions of ISE configuration capabilities. Cisco Active Advisor is a separate cloud-based service that provides network health and security checks, device lifecycle management, and best practice recommendations for Cisco devices. It is not directly related to ISE deployments. ISE command line is an interface that allows the user to perform administrative tasks, such as backup and restore, password recovery, and troubleshooting. However, ISE does not require an understanding of the command line for set-up and configuration, as most of the functions can be done through the graphical user interface (GUI). References := : 1: ISE Deployment Assistant (IDA) - Cisco Identity Services Engine - Cisco, 2: Cisco Identity Services Engine Administrator Guide, Release 2.7 - Wireless Setup Wizard [Cisco Identity Services Engine] - Cisco, 3: Cisco Identity Services Engine Administrator Guide, Release 2.7 - ISE Wizards [Cisco Identity Services Engine] - Cisco, : Cisco Active Advisor - Cisco, : Cisco Identity Services Engine CLI Reference Guide, Release 2.7 - Using the Command-Line Interface [Cisco Identity Services Engine] - Cisco

Syslog, FNF (Flexible NetFlow), and SNMP (Simple Network Management Protocol) are three technologies that can be deployed to gather data and provide insight into the network performance, health, and behavior. Syslog is a standard protocol for logging messages from network devices, such as routers, switches, firewalls, and servers. Syslog messages can be sent to a centralized server for analysis, correlation, and alerting. FNF is a Cisco technology that captures and exports information about network flows, such as source and destination IP addresses, ports, protocols, bytes, packets, and timestamps. FNF can be used to monitor network traffic patterns, identify anomalies, and optimize network resources. SNMP is a protocol that allows network devices to communicate with management systems, such as Cisco DNA Center. SNMP can be used to collect statistics, configuration, and status information from network devices, as well as to send commands and notifications. SNMP can help network administrators to troubleshoot, configure, and manage their network devices remotely. References: Cisco DNA Center User Guide, Release 1.3.1.0 - Monitor the Network 1, Cisco DNA Center User Guide, Release 1.3.1.0 - Configure Flexible NetFlow 2, Cisco DNA Center User Guide, Release 1.3.1.0 - Configure SNMP 3

A centralized SD-Access design is where a single fabric domain spans across the main site and all branch sites over the WAN. This design has some challenges, such as:

• Since the traffic is encapsulated in VXLAN headers, SD-WAN features such as application-aware routing, QoS, and security policies cannot be applied to the traffic based on the original IP headers. This means that the SD-WAN controller cannot optimize or route the traffic based on the application or user identity. The traffic is treated as a single class of service across the WAN.
• The centralized design also introduces a single point of failure and a potential bottleneck at the main site, where the border nodes and the control plane nodes are located. If the main site goes down or the WAN link fails, the branch sites will lose connectivity to the fabric domain and the external networks.
• The centralized design also requires a high bandwidth and low latency WAN connection between the main site and the branch sites, which may not be feasible or cost-effective for some scenarios.

References :=

Some possible references are:

• Cisco Enterprise Networks SDA, SDWAN and ISE Exam for System Engineers (ENSDENG) Study Guide
• Cisco SD-Access and SD-WAN Integration Design Guide

 A WAN design is a plan for how to connect multiple sites or locations over a wide area network (WAN). A WAN design can have various benefits, depending on the goals and requirements of the organization. Two of the possible benefits from a WAN design are:

• Ensure remote site uptime: A WAN design can help to ensure that remote sites or branches have reliable and consistent connectivity to the central site or the cloud. This can improve the availability and performance of critical applications and services, such as voice, video, collaboration, and data backup. A WAN design can also provide redundancy and resiliency in case of network failures or disasters, by using multiple WAN links, backup routes, or failover mechanisms. For example, SD-WAN is a WAN design that uses software to dynamically route traffic over the best available WAN link, based on the network conditions and the application requirements1.
• Prioritize and secure with granular control: A WAN design can also help to prioritize and secure the traffic and applications that flow over the WAN. This can enhance the quality of service (QoS) and the security of the network. A WAN design can use various techniques, such as traffic shaping, policy-based routing, encryption, firewall, or VPN, to classify, prioritize, and secure the WAN traffic according to the business needs and the security policies. For example, TrustSec is a WAN design that uses software-defined segmentation to enforce granular access policies based on the identity and context of users, devices, and applications2.

The other options, provide lower quality service to guest users, reduce cost and increase operational complexity, and lower circuit bandwidth requirements, are not benefits from a WAN design. Providing lower quality service to guest users is not a desirable outcome, as it can affect the user experience and the reputation of the organization. Reducing cost and increasing operational complexity is a trade-off that may not be worth it, as it can create more challenges and risks for the network management and maintenance. Lowering circuit bandwidth requirements is not a benefit in itself, but a means to achieve other benefits, such as reducing cost or improving performance. A WAN design should aim to optimize the bandwidth utilization and allocation, rather than simply lowering it. References := : 1: Cisco SD-WAN Solution Design Guide (CVD) - Cisco1, 2: Cisco TrustSec Solution Overview - Cisco

Cisco ISE is a network access control solution that uses policy-based decision making to determine if a device is allowed access to the network and, if allowed, what level of access this device is given1.Cisco ISE can also provide authentication, authorization, and accounting (AAA) through the RADIUS protocol and device administration through TACACS+ service1.

Some of the use cases of Cisco ISE are:

• Access Control: Cisco ISE can grant and control the right level of network access for both wired and wireless devices by employing mainly the 802.1x protocol and EAPoL (EAP over LAN)1.Cisco ISE can also use MAC authentication bypass (MAB) to authenticate devices that are unable to use the EAP protocol1.Additionally, Cisco ISE can integrate with Microsoft Active Directory for confirming user identity1.
• Assurance: Cisco ISE can monitor and troubleshoot the various features on ISE and analyze trends of the network activities from a centralized admin node2.Cisco ISE can also provide reports on user andentity behavior analytics (UEBA), enterprise mobility management/mobile device management (EMM/MDM), security incident and event management (SIEM), and segmentation34.
• Monitoring: Cisco ISE can provide endpoint visibility with context by collecting and analyzing data from various sources such as endpoints, users, applications, devices, networks, and cloud services4.Cisco ISE can also provide real-time alerts and notifications on security events and anomalies4.

/configuration/guide/scg3750/sw8021x.pdf

The protocol that is used between an endpoint and a switch with an 802.1 authentication is EAP, which stands for Extensible Authentication Protocol. EAP is a framework that defines how the endpoint (also called the supplicant) and the switch (also called the authenticator) exchange authentication messages over a wired or wireless network. EAP supports various authentication methods, such as passwords, certificates, tokens, or biometrics, and can be encapsulated in different transport protocols, such as RADIUS, Diameter, or EAPOL. EAP is used in 802.1X authentication, which is a standard for port-based network access control that prevents unauthorized access to a network1.

The other options, TACACS, MAB, and RADIUS, are not protocols that are used between an endpoint and a switch with an 802.1 authentication. TACACS is a protocol that provides remote authentication and authorization for network devices, such as routers or switches, but it is not used for endpoint authentication. MAB is a technique that uses the MAC address of an endpoint as a credential for 802.1X authentication, but it is not a protocol itself. RADIUS is a protocol that provides centralized authentication, authorization, and accounting for network access, but it is not used directly between the endpoint and the switch, but rather between the switch and the authentication server1. References := : 2: What Is 802.1X Authentication? How Does 802.1x Work? - Fortinet2, 1: IEEE 802.1X - Wikipedia1

 Cisco ISE is a comprehensive solution that provides authentication, authorization, and accounting (AAA) services, as well as posture, profiling, and guest access features. These are some of the key features that differentiate Cisco ISE from other RADIUS and NAC products in the market.

• Ability to authenticate and authorize users and endpoints: Cisco ISE supports various authentication methods and protocols, such as 802.1X, MAB, WebAuth, EAP, PEAP, EAP-TLS, and TEAP. Cisco ISE also integrates with various identity sources, such as Active Directory, LDAP, RADIUS, SAML, and Azure AD. Cisco ISE can enforce granular and dynamic policies based on the identity and context of the users and endpoints, such as device type, location, posture, and time. Cisco ISE can also leverage TrustSec and SGTs to provide software-defined segmentation and micro-segmentation12.
• BYOD provides auto configuration of endpoints: Cisco ISE supports BYOD (Bring Your Own Device) scenarios, where users can register and onboard their personal devices to the network. Cisco ISE provides a self-service portal and a native supplicant provisioning tool that can automatically configure the endpoints with the required certificates, profiles, and settings. Cisco ISE can also apply different policies for corporate and personal devices, and integrate with MDM (Mobile Device Management) solutions to enforce compliance and security34.
• Guest access and guest lifecycle management functionality: Cisco ISE provides a comprehensive guest access solution that allows administrators and sponsors to create and manage guest accounts, and assign different access levels and privileges to guests. Cisco ISE also provides a customizable guest portal that can support various authentication methods, such as social media login, SMS, email, or self-registration. Cisco ISE can also monitor and audit the guest activities and sessions, and enforce expiration and revocation policies .

References:

• : Cisco ISE Features - Cisco
• : Cisco TrustSec Configuration Guide, Cisco IOS XE Gibraltar 16.12.x - TrustSec Overview [Cisco IOS XE 16] - Cisco
• : Cisco Identity Services Engine Administrator Guide, Release 2.7 - BYOD [Cisco Identity Services Engine] - Cisco
• : Cisco Identity Services Engine Administrator Guide, Release 2.7 - Mobile Device Management [Cisco Identity Services Engine] - Cisco
• : [Cisco Identity Services Engine Administrator Guide, Release 2.7 - Guest Access [Cisco Identity Services Engine] - Cisco]
• : [Cisco Identity Services Engine Administrator Guide, Release 2.7 - Guest Lifecycle Management [Cisco Identity Services Engine] - Cisco]

SD-WAN is a software-defined approach to managing the WAN that offers several capabilities, such as:

• The separation of management plane, control plane and data plane to enable horizontal scaling. This means that the SD-WAN solution can decouple the network functions from the underlying hardware and distribute them across different layers and locations. This allows for greater flexibility, scalability, and resilience of the network12
• Cloud hosted or on-premise fully redundant management and control plane functions. This means that the SD-WAN solution can provide centralized and cloud-based management and control of the network, as well as the option to deploy them on-premise for more control and security. This enables the SD-WAN solution to offer consistent policies, visibility, and analytics across the network, as well as the ability to automate network operations and orchestration13

The other options are not SD-WAN solution capabilities, but rather features or benefits of specific SD-WAN solutions, such as:

• Trust roll branch turn up for easy provisioning and new installations. This is a feature of Cisco Catalyst SD-WAN, which enables zero-touch provisioning and automated configuration of branch devices, as well as the ability to trust the identity and security posture of the devices3
• Ability to provide and integrate security with complementary products and applications. This is a benefit of Cisco Catalyst SD-WAN, which offers integrated security capabilities, such as full-stack multilayer security, cloud-delivered security, and SASE-enabled architecture. This enables the SD-WAN solution to provide real-time threat protection and compliance across the network3

References :=

• What Is SD-WAN? - Software-Defined WAN (SDWAN) - Cisco
• SD-WAN Solution - Cisco Catalyst SD-WAN Solution Overview
• What is SD-WAN? - Software-Defined WAN | VMware

Some of the statements that are true regarding Cisco SD-WAN license tiers are:

• With Pro license, control and data policies are supported2. This license tier enables network operators to define and enforce policies for traffic shaping, quality of service (QoS), application optimization, and security2.
• With Plus license, split-tunnel is supported3. This license tier enables network operators to use split-tunneling technology to route traffic through different paths based on application or user preferences3.
• With Enterprise license, vAnalytics is included4. This license tier enables network operators to use vAnalytics feature to collect and analyze data from various sources such as endpoints, applications, devices, networks, and cloud services4.