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質問 # 14
What is the easiest way to enable SD-Access for all your remote site after you have your campus SD-Access fabric up and running?
- A. Use a separate fabric domain for each site and use SD-WAN as the underlay
- B. Use a separate fabric domain for each site and use the traditional physical network as the underlay
- C. Treat all the sites as one fabric domain and use SD-WAN as the underlay
- D. Treat all the sites as one fabric domain and use the traditional physical network as the underlay
正解：D
質問 # 15
How would cisco ISE handle authentication for your printer that does not have a supplicant?
- A. ISE would authenticate the printer using MAC RADIUS authentication
- B. ISE would not authenticate the printer as printers are not subject to ISE authentication.
- C. ISE would authenticate the printer using web authentication.
- D. ISE would authenticate the printer using MAB.
- E. ISE would authenticate the printer using 8.2.1X authentication
正解：D
質問 # 16
Which three key differentiators that DNA Assurance provides that our competitors are unable match?
(Choose three)
- A. VXLAN support
- B. Network time travel
- C. Support for Overlay Virtual Transport
- D. On-premise and cloud-base analytics
- E. Apply Insights
- F. Proactive approach to guided remediation
正解：C、D、E
質問 # 17
Which Cisco product supports SD-Access and specifically built to address new challenges faced by enterprises?
- A. Catalyst 6807-XL w/ Sup6T and C6800 10G line cards
- B. CSRv virtual router
- C. ASR 1000-HX
- D. Nexus 7700 w/ Sup2E and M3 line cards
- E. Catalyst 9500
- F. ISR 4221
正解：E
解説：
The Cisco Catalyst 9500 Series Switches are specifically built to address the new challenges faced by enterprises, such as the need for increased bandwidth, security, and scalability. The Catalyst 9500 Series Switches are also designed to support Cisco SD-Access, which is a software-defined access fabric that simplifies network management and improves network security.
References: =
* Designing Cisco Enterprise Networks
(ENDESIGN): https://www.cisco.com/c/en/us/training-events/training-certifications/training/training-serv
* Cisco Catalyst 9500 Series
Switches: https://www.cisco.com/site/us/en/products/networking/switches/catalyst-9500-series-switches/in The Catalyst 9K platform has been built to address security risks posed by advanced persistent threats, operational complexities associated with IoT convergence, evolving mobility requirements and a need to take advantage of Cloud agility & consumption models.https://www.orbe.es/wp-content/uploads/2017/11/DNA_Bootcamp_SDA_CustomerLEO_Orbe.compress Slide 63
質問 # 18
Which two activities should occur during an SE's demo process? (Choose two.)
- A. leveraging a company such as Complete Communications to build a financial case
- B. highlighting opportunities that although not currently within scope would result in lower operational costs and complexity
- C. identifying which capabilities require demonstration
- D. asking the customer to provide network drawings or white board the environment for you
- E. determining whether the customer would like to dive deeper during a follow -up
正解：B、E
解説：
https://salesconnect.cisco.com/#/content-detail/10fb056b-4100-407b-a425-c48fdc30dd2a
質問 # 19
What are three ways in Which Cisco ISE learns information about devices? (Choose three,)
- A. network servers the device has accessed
- B. SMIP agents
- C. RADIUS attributes
- D. RPC mechanism via HTTPS
- E. traffic generated by the device
- F. user authentication to the ISE
正解：A、E、F
質問 # 20
Which are two advantages of a "one switch at a time" approach to integrating SD-Access into an existing brownfield environment? (Choose two.)
- A. allows simplified testing prior to cutover
- B. opens up many new design and deployment opportunities
- C. allows simplified roll back
- D. appropriate for campus and remote site environments
- E. ideal for protecting recent investment s while upgrading legacy hardware
- F. involves the least risk of all approaches
正解：C、F
解説：
Integrating Cisco Software-Defined Access (SD-Access) into an existing brownfield environment can be complex and risky, given the existing network's configurations and operations. Adopting a "one switch at a time" approach provides two significant advantages:
* Involves the least risk of all approaches (Option C):This method minimizes the impact on the existing network because changes are applied incrementally rather than all at once. By limiting the scope of changes to one switch at a time, network administrators can carefully monitor the effects and address any issues immediately. This approach reduces the risk of widespread network disruptions, making it a safer option compared to more aggressive migration strategies.
* Allows simplified roll back (Option D):If any issues arise during the integration of a single switch, it is easier to revert to the previous state without affecting the entire network. This rollback capability is critical in maintaining network stability and ensuring that the operations of the existing network continue uninterrupted. The granularity of changes and the ease of reverting them back to a known good state provide a safety net that is crucial in complex environments.
References:
* Cisco SD-Access Deployment Guide
* Cisco Digital Network Architecture (DNA) Center User Guide
質問 # 21
Which are two advantages of a"one switch at a time"approach to integrating SD-Access into an existing brownfield environment? (Choose two.)
- A. allows simplified testing prior to cutover
- B. ideal for protecting recent investment s while upgrading legacy hardware
- C. opens up many new design and deployment opportunities
- D. involves the least risk of all approaches
- E. allows simplified roll back
- F. appropriate for campus and remote site environments
正解：B、F
質問 # 22
Which are the three focus areas for reinventing the WAN? (Choose three.)
- A. Cloud First
- B. Application Quality of Experience
- C. Operations
- D. Centralized device authentication
- E. Execution
- F. Secure Elastic Connectivity
正解：A、B、F
解説：
Explanation
The three focus areas for reinventing the WAN are:
Secure Elastic Connectivity: This refers to the ability to provide secure and flexible connectivity to any application, anywhere, and anytime. Secure elastic connectivity enables the network to adapt to the changing business needs and user demands, while maintaining security and performance. Secure elastic connectivity leverages SD-WAN technologies, such as Cloud OnRamp, SASE, and ThousandEyes, to optimize the network path, encrypt the traffic, and monitor the end-to-end visibility across the WAN12.
Application Quality of Experience: This refers to the ability to ensure optimal and consistent user experience for any application, regardless of the network conditions. Application quality of experience uses SD-WAN technologies, such as vAnalytics, to measure and improve the application performance, availability, and reliability across the WAN3. Application quality of experience also uses intelligent policies and real-time analytics to prioritize the critical applications and steer the traffic to the best-performing path4.
Cloud First: This refers to the ability to embrace the cloud as the primary platform for delivering applications and services to the users. Cloud first enables the network to support the multicloud strategy and accelerate the cloud adoption. Cloud first leverages SD-WAN technologies, such as Cloud OnRamp, to simplify and automate the connectivity to the public cloud, SaaS, and cloud interconnect providers4. Cloud first also enables the network to operate as a cloud-native WAN overlay, using software-defined automation and orchestration tools5.
References:
Cisco SD-WAN Architecture Overview
SD-WAN and SASE: The new landscape of networking
Under the vAnalytics Hood: Enabling Total Network Visibility, Total Network Control SD-WAN Capabilities - The New Landscape of Networking Software-defined WAN (SD-WAN): the new landscape of networking
質問 # 23
Which three ways are SD-Access and ACI Fabric similar? (Choose three.)
- A. use of group policy
- B. use of overlays
- C. use of Virtual Network IDs
- D. use of Endpoint Groups
- E. focus on user endpoints
- F. use of Scalable Group Tags
正解：B、D、F
解説：
Explanation
SD-Access and ACI Fabric are both solutions that provide software-defined networking for different domains.
SD-Access is designed for the campus and branch networks, while ACI Fabric is designed for the data center networks. However, they share some common features and concepts, such as:
Use of Scalable Group Tags: Both SD-Access and ACI Fabric use Scalable Group Tags (SGTs) to identify and classify the endpoints based on their attributes, such as user identity, device type, or application. SGTs are numerical labels that are assigned to the endpoints and carried in the packets, either in the header or in the metadata. SGTs enable granular and dynamic policy enforcement based on the endpoint identity and context, rather than the network topology and IP addresses12.
Use of overlays: Both SD-Access and ACI Fabric use overlays to create a network abstraction layer that decouples the network services and functions from the underlying physical infrastructure. Overlays enable network virtualization and segmentation, as they allow multiple logical networks to coexist on the same physical network. Overlays also simplify the network design and management, as they reduce the complexity and variability of the network elements and interfaces. SD-Access uses VXLAN as the overlay protocol, while ACI Fabric uses VXLAN with EVPN as the overlay protocol34.
Use of Endpoint Groups: Both SD-Access and ACI Fabric use Endpoint Groups (EPGs) to group the endpoints based on their policy requirements and network scope. EPGs are logical containers that define the allowed interactions between the endpoints, such as the protocols, ports, and quality of service.
EPGs also define the network boundaries that isolate the endpoints from each other, based on the security and compliance needs. EPGs are synonymous with Scalable Groups in SD-Access, and they can be mapped between SD-Access and ACI Fabric to enable end-to-end policy across the domains56.
References:
Cisco TrustSec Overview
Cisco TrustSec Configuration Guide, Cisco IOS XE Gibraltar 16.12.x - Scalable Group Tags [Cisco IOS XE 16] - Cisco Cisco SD-Access Architecture Overview Cisco Application Centric Infrastructure Fundamentals, Release 4.0(1) - ACI Fabric Fundamentals
[Cisco Application Policy Infrastructure Controller (APIC)] - Cisco
Cisco SD-Access (SDA) Integration with Cisco Application Centric Infrastructure (ACI) - Cisco Community Cisco Application Centric Infrastructure - Cisco Multidomain Integration At-a-Glance
質問 # 24
Which are two Cisco ISE that benefits our customers? (Choose two.)
- A. enables them to set traffic priorities across the network
- B. helps them stop and contain real-time threats
- C. helps them accelerate application deployment and delivery
- D. provides network access control
正解：B、D
質問 # 25
Which three options focus of the current digital business era? (Choose three.)
- A. Human scale
- B. connectivity
- C. centralized enterprise and web applications
- D. virtualized services
- E. IoT scale
- F. automation
正解：D、E、F
質問 # 26
What are the three foundational elements required for the new operational paradigm? (Choose three.)
- A. policy-based automated provisioning of network
- B. assurance
- C. multiple technologies at multiple OSI layers
- D. application QoS
- E. fabric
- F. centralization
正解：A、B、E
質問 # 27
Which two Cisco ISE use cases typically involve the highest level of implementation complexity? (Choose two.)
- A. Software-defined segmentation
- B. Software-defined access
- C. Guest and wireless access
- D. Device management
- E. Asset visibility
正解：A、B
質問 # 28
How would Cisco ISE handle authentication for your printer that does not have a supplicant?
- A. ISE would authenticate the printer using 802.1X authentication.
- B. ISE would not authenticate the printer as printers are not subject to ISE authentication.
- C. ISE would authenticate the printer using MAC RADIUS authentication.
- D. ISE would authenticate the printer using web authentication.
- E. ISE would authenticate the printer using MAB.
正解：E
解説：
Cisco ISE can handle authentication for printers that do not have a supplicant using MAB (MAC Authentication Bypass). MAB is a method of authenticating devices based on their MAC address. MAB is useful for devices that do not support 802.1X or other authentication protocols, such as printers, cameras, or IoT devices. MAB works as follows:
* The device sends an Ethernet frame with its MAC address as the source address.
* The switch sends a RADIUS Access-Request message to ISE with the MAC address as the username and password.
* ISE checks the MAC address against a database of known devices or an identity source sequence.
* If the MAC address is found and authorized, ISE sends a RADIUS Access-Accept message to the switch with the appropriate authorization profile.
* The switch applies the authorization profile to the device and grants it access to the network.
MAB is less secure than 802.1X, as MAC addresses can be spoofed or cloned. Therefore, MAB should be used with caution and combined with other security measures, such as profiling, posture, or endpoint protection. MAB should also be restricted to specific ports or VLANs that are isolated from the rest of the network.
References:
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Configure MAC Authentication Bypass [Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Authentication Policies
[Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Authorization Policies
[Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Identity Source Sequences
[Cisco Identity Services Engine]
* Cisco Identity Services Engine API Reference Guide, Release 2.7 - Authentication [Cisco Identity Services Engine]
* Designing Cisco Enterprise Networks (ENDESIGN) Exam Topics [Cisco]
* Cisco Validated Design Guides [Cisco]
質問 # 29
Which component of the SD Access fabric is responsible for communicating with networks that are external to the fabric?
- A. border-nodes
- B. edge nodes
- C. control plane nodes
- D. intermediate nodes
正解：B
解説：
Explanation
https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/Campus/CVD-Software-Defined-Access-Design-G
質問 # 30
Which Cisco product supports SD-Access and specifically built to address new challenges faced by enterprises?
- A. Catalyst 6807-XL w/ Sup6T and C6800 10G line cards
- B. CSRv virtual router
- C. ASR 1000-HX
- D. Nexus 7700 w/ Sup2E and M3 line cards
- E. Catalyst 9500
- F. ISR 4221
正解：E
解説：
Explanation
The Cisco Catalyst 9500 Series Switches are specifically built to address the new challenges faced by enterprises, such as the need for increased bandwidth, security, and scalability. The Catalyst 9500 Series Switches are also designed to support Cisco SD-Access, which is a software-defined access fabric that simplifies network management and improves network security.
References: =
Designing Cisco Enterprise Networks
(ENDESIGN): https://www.cisco.com/c/en/us/training-events/training-certifications/training/training-serv Cisco Catalyst 9500 Series Switches: https://www.cisco.com/site/us/en/products/networking/switches/catalyst-9500-series-switches/in
質問 # 31
Which is a function of the Proactive Insights feature of Cisco DNA Center Assurance?
- A. enabling you to see the complete path of packets from the client to the end application
- B. enabling you to quickly view all of the contextual information related to a single user
- C. pointing out where the most serious issues are happening in the network
- D. generating synthetic traffic to perform tests that raise awareness of potential network issues
正解：D
解説：
The Proactive Insights feature of Cisco DNA Center Assurance is a function that generates synthetic traffic to perform tests that raise awareness of potential network issues. This feature uses the Cisco DNA Center platform to create and schedule tests that simulate real user traffic and measure the network performance and user experience. The tests can be run on demand or periodically, and the results are displayed in the Cisco DNA Center dashboard. The Proactive Insights feature helps network administrators to proactively identify and troubleshoot network issues before they affect the end users12. References:
* Cisco DNA Center Assurance User Guide, Release 2.1.2
* Understanding Cisco DNA Center Assurance!
質問 # 32
Which option will help build your customers platform during the discovery phase?
- A. high-level design
- B. detailed design
- C. PO
- D. POV report
- E. business case
正解：E
解説：
Explanation
= A business case is an option that will help build your customers platform during the discovery phase. A business case is a document that outlines the rationale, objectives, benefits, costs, risks, and alternatives of a proposed project or solution. A business case helps to justify the investment and align the stakeholders on the value proposition of the project or solution12.
During the discovery phase, the goal is to understand the problem that needs to be solved, the user needs and context, the constraints and opportunities, and the underlying policy intent. A business case can help to achieve this goal by providing a clear and concise summary of the problem statement, the desired outcomes, the potential solutions, and the evaluation criteria34. A business case can also help to communicate the vision and scope of the project or solution to the customers and other stakeholders, and to secure their buy-in and support56.
A business case is not the same as a POV report, a detailed design, a high-level design, or a PO. A POV report is a document that summarizes the findings and recommendations from a proof of value (POV) exercise, which is a short-term trial of a solution to demonstrate its feasibility and benefits7. A detailed design is a document that specifies the technical and functional requirements, architecture, and configuration of a solution8. A high-level design is a document that provides an overview of the solution, such as the main components, interfaces, and interactions9. A PO is a purchase order, which is a document that authorizes a purchase transaction between a buyer and a seller.
References :=
What is a business case? Definition and examples
Business Case - Project Management Knowledge
How the discovery phase works - Service Manual - GOV.UK
Discovery Phase - Service Design - The Beginner's Guide
How to Write a Business Case 4 Steps to a Perfect Business Case Template How to Write a Business Case: 4 Steps to a Perfect Business Case Template What is a Proof of Value (POV)?
What is a Detailed Design Document (DDD)?
What is a High-Level Design Document?
[What is a Purchase Order (PO)?]
質問 # 33
Which is a function of the Proactive Insights feature of Cisco DNA Center Assurance?
- A. enabling you to see the complete path of packets from the client to the end application
- B. enabling you to quickly view all of the contextual information related to a single user
- C. pointing out where the most serious issues are happening in the network
- D. generating synthetic traffic to perform tests that raise awareness of potential network issues
正解：D
質問 # 34
Which two statements are true regarding SD-WAN demonstrations? (Choose two.)
- A. As a Cisco SD-WAN SF, you should you should spend your time learning about the technology rather than contributing to demo innovation
- B. During a demo, you should demonstrate and discuss what the team considers important details
- C. Use demonstrations primarily for large opportunities and competitive situations
- D. There is a big difference between demos that use a top down approach and demos that use a bottom up approach
- E. During a demo you should consider the target audience and the desired outcome
正解：D、E
質問 # 35
Which is a benefit of a cloud-based SD-WAN deployment?
- A. security never a n issue
- B. instant scale
- C. might be required for compliance with industry standards
- D. agility of change dependent only on your own internal IT processes
- E. controller availability never an issue
正解：B
解説：
Explanation
A cloud-based SD-WAN deployment is a model of delivering SD-WAN services from the cloud, rather than from on-premises hardware or software appliances. A cloud-based SD-WAN deployment has several benefits, such as:
Instant scale: A cloud-based SD-WAN deployment can scale up or down the network resources and bandwidth on demand, without requiring additional hardware or manual configuration. This enables the network to adapt to the changing traffic patterns and user demands, while optimizing the network performance and efficiency12.
Reduced costs: A cloud-based SD-WAN deployment can lower the capital and operational expenses of the network, by eliminating the need for expensive and complex WAN infrastructure, such as MPLS circuits, routers, firewalls, and WAN optimization devices. A cloud-based SD-WAN deployment can also leverage the economies of scale and the pay-as-you-go model of the cloud, which can reduce the network costs per megabit12.
Simplified management: A cloud-based SD-WAN deployment can simplify the network management and operation, by providing a centralized and unified dashboard that can monitor, configure, and troubleshoot the network across multiple sites and regions. A cloud-based SD-WAN deployment can also automate the network provisioning, orchestration, and optimization, by applying intelligent policies and analytics based on the business intent and network conditions12.
Enhanced security: A cloud-based SD-WAN deployment can enhance the network security and compliance, by providing built-in and integrated security features, such as encryption, firewall, VPN, IPS, and antivirus. A cloud-based SD-WAN deployment can also leverage the cloud security services, such as SASE, to provide secure and direct access to the cloud applications and platforms, without compromising the network performance and user experience123.
Improved cloud readiness: A cloud-based SD-WAN deployment can improve the cloud readiness and agility of the network, by enabling seamless and optimized connectivity to the public cloud, SaaS, and cloud interconnect providers. A cloud-based SD-WAN deployment can also support the multicloud and hybrid-cloud strategies, by allowing the network to operate as a cloud-native WAN overlay, using software-defined automation and orchestration tools123.
References:
What Is SD-WAN? - Software-Defined WAN (SDWAN) - Cisco
SD-WAN Benefits: 5 Business Advantages of SD-WAN - Fortinet
What are the Benefits of SD-WAN? - Cisco
What are the Benefits of SD-WAN?
SD-WAN and SASE: The new landscape of networking
質問 # 36
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