Cisco Enterprise Networks SDA, SDWAN and ISE Exam for System Engineers Free Practice Test — 30 Questions

Question 1

A global enterprise is transitioning its campus network infrastructure to Cisco Software-Defined Access (SDA). The existing IT operations team, comprised of seasoned network engineers familiar with traditional VLAN-centric segmentation, expresses significant apprehension regarding the shift to policy-based network segmentation and the underlying fabric architecture. Their primary concerns revolve around the perceived complexity of the new system, potential disruption to existing workflows, and a lack of immediate understanding of the benefits over their established methods. How should the lead network architect best navigate this internal resistance to ensure a smooth and successful adoption of Cisco SDA?

Accepted Answer

Conduct a series of workshops and hands-on lab sessions demonstrating the operational advantages and simplified management of SDA, while actively soliciting and addressing the team's specific concerns about workflow integration and technical nuances.

Question 2

A network engineer is troubleshooting a scenario where a contractor\'s laptop, attempting to access the corporate network via the Cisco SD-Access fabric, is unexpectedly placed in a restricted network segment, preventing access to most internal resources. The contractor reports that their device has the necessary VPN client but cannot reach the shared drives or internal applications. The network engineer confirms that the device passed initial authentication. What is the most probable underlying mechanism causing this restricted access, given the integration of Cisco ISE and SD-Access for policy enforcement?

Accepted Answer

Cisco ISE detected a security posture violation on the contractor's laptop, leading to its dynamic placement into a quarantine VLAN by the SD-Access fabric for remediation.

Question 3

Anya, a seasoned network engineer, is overseeing the deployment of a new Cisco SD-WAN solution for a financial services firm\'s newly acquired branch. The critical requirement is to ensure that all financial transactions and sensitive client data are transmitted with the highest level of security and compliance, adhering to regulations like PCI DSS. During the pre-deployment testing phase, Anya observes significant packet loss and increased latency on specific traffic flows destined for the core data center, impacting the user experience for critical financial applications. She must adapt her implementation plan, which initially prioritized rapid deployment, to address these performance anomalies while maintaining stringent security policies managed by Cisco ISE. Which of Anya\'s behavioral competencies would be most crucial in successfully navigating this complex integration and ensuring a secure, compliant, and high-performing network for the financial branch?

Accepted Answer

Proactive identification of potential policy violations and security vulnerabilities within the new branch's traffic flows before full integration.

Question 4

Anya, a system engineer, is orchestrating the integration of a new remote financial services branch into a large enterprise\'s established Cisco SD-WAN fabric. The critical requirement is to ensure uninterrupted, secure, and high-performance access for latency-sensitive trading platforms, while simultaneously onboarding the branch\'s diverse user base and IoT devices. Anya anticipates potential integration challenges, including unforeseen network state changes and the need to fine-tune policies for optimal application experience. Which behavioral competency is Anya primarily demonstrating by adopting a phased deployment strategy, beginning with essential connectivity and gradually layering advanced security and QoS policies, while maintaining open communication with stakeholders regarding progress and potential adjustments?

Accepted Answer

Adaptability and Flexibility

Question 5

A critical initiative to deploy Cisco Software-Defined Access (SDA) for enhanced network segmentation and integrate SD-WAN for secure remote connectivity faces strong opposition from the marketing department. They express concerns that the new security policies will impede their agile content deployment workflows and negatively impact client engagement during peak promotional periods. The IT team\'s initial communication focused heavily on technical benefits and compliance mandates.

Which behavioral competency is MOST essential for the system engineer to leverage to overcome this resistance and ensure successful adoption of the new network infrastructure?

Accepted Answer

Adaptability and Flexibility, specifically by pivoting communication strategies and adjusting implementation timelines based on business unit feedback.

Question 6

An enterprise is undertaking a large-scale, multi-phase migration to a new SD-WAN fabric, coinciding with a significant corporate merger. The project timeline is aggressive, and initial pilot deployments have encountered unexpected latency issues impacting critical business applications. The engineering team is under pressure to deliver the new network while ensuring business continuity during the merger\'s integration phase. Which behavioral competency is MOST critical for the lead system engineer to effectively manage this complex and dynamic situation?

Accepted Answer

Adaptability and Flexibility

Question 7

Anya, a network architect leading a critical Cisco SDA fabric deployment, is facing unforeseen challenges during the initial device onboarding phase. Intermittent connectivity issues and policy enforcement anomalies are impacting a significant user group. The original deployment plan, emphasizing rapid rollout, is proving unsustainable. Which behavioral competency is most crucial for Anya to demonstrate immediately to effectively manage this evolving situation and guide her team toward a successful resolution?

Accepted Answer

Adaptability and Flexibility

Question 8

A critical divergence of opinion emerges between the network infrastructure team and the cybersecurity incident response unit concerning the application of granular micro-segmentation policies within a newly deployed Cisco SD-Access fabric. The network team advocates for a broader, more generalized segmentation approach to simplify policy management and minimize potential connectivity disruptions during initial adoption, citing concerns about the overhead of highly specific endpoint group assignments. Conversely, the cybersecurity team insists on extremely granular segmentation, down to individual application flows, to mitigate potential lateral movement of threats and adhere to a zero-trust security model, raising alarms about the potential for unmitigated risks if policies are too permissive. As the system engineer tasked with ensuring the successful integration and operation of both SDA and ISE, what is the most appropriate initial strategy to navigate this inter-departmental conflict and achieve a functional, secure, and manageable network?

Accepted Answer

Facilitate a joint working session between both teams to collaboratively analyze the policy requirements, identify potential technical compromises, and develop a phased implementation plan that balances security granularity with operational manageability.

Question 9

Consider a large enterprise network undergoing a phased migration to Cisco SD-Access. During this transition, a subset of access layer switches, acting as Network Access Devices (NADs), are experiencing intermittent connectivity issues with Cisco Identity Services Engine (ISE). Consequently, some endpoints connected to these switches are failing to receive their full, dynamically assigned authorization policies, resulting in a state of operational ambiguity regarding their access privileges. What strategic approach, focusing on adaptability and problem-solving under uncertainty, best addresses this situation to maintain security and operational continuity?

Accepted Answer

Configure ISE to assign a default, least-privilege authorization policy to endpoints that cannot be fully authenticated or profiled by the NADs, thereby ensuring a baseline level of secure connectivity while the network transition stabilizes.

Question 10

Anya, a senior network engineer, is overseeing the integration of a new remote branch office into a large enterprise\'s existing Cisco SD-WAN fabric. The branch office relies heavily on real-time collaboration tools and a custom-built ERP system. During the initial planning phase, Anya identifies potential challenges related to varying internet link quality and the need to maintain strict security compliance with corporate mandates. She needs to ensure that critical applications are prioritized, user experience remains optimal, and the new site adheres to all security policies without hindering productivity. Anya has a limited window for the cutover and must coordinate with a local IT team that has varying levels of SD-WAN expertise.

Which strategic approach best addresses Anya\'s multifaceted objectives for this branch office integration?

Accepted Answer

Implement a granular Quality of Service (QoS) policy that prioritizes real-time traffic and business-critical applications, coupled with Application-Aware Routing (AAR) policies to dynamically steer traffic based on performance metrics and application type across available WAN links.

Question 11

Consider a scenario within a Cisco SD-Access fabric where an endpoint, previously assigned to a trusted corporate user segment and granted access to critical internal applications, fails a routine security posture assessment. The Cisco Identity Services Engine (ISE) subsequently updates the endpoint\'s security group tag (SGT) to a quarantined state. Which of the following is the most immediate and direct operational consequence for the user\'s network connectivity and application access?

Accepted Answer

The endpoint's SGT is updated, leading to the enforcement of stricter access policies that deny access to previously permitted critical internal applications and potentially disrupt ongoing network sessions.

Question 12

Consider a scenario where a newly deployed wireless access point, designated for a guest Wi-Fi segment managed by Cisco SD-WAN, fails to complete its initial authentication handshake with Cisco Identity Services Engine (ISE). This failure is attributed to a misconfigured certificate trust chain on the access point, preventing it from establishing a secure identity with ISE. The network administrator has configured the SD-WAN fabric to dynamically steer traffic from devices exhibiting non-compliant authentication statuses to a dedicated security inspection zone. Which of the following actions would the SD-WAN fabric most likely perform to address this situation, adhering to the principle of least privilege and dynamic security policy enforcement?

Accepted Answer

Redirect the access point's traffic to a firewall cluster for deep packet inspection and potential quarantine, based on ISE's negative posture assessment relayed to the SD-WAN controller.

Question 13

A network engineering team is tasked with integrating a newly established remote branch office into a sophisticated enterprise network. This network leverages a Cisco SD-WAN fabric for connectivity and Cisco Identity Services Engine (ISE) for granular access control and endpoint profiling. Upon initial deployment, a significant number of new devices at the branch office, including specialized IoT sensors and BYOD mobile devices, are failing to receive the correct Security Group Tags (SGTs) from ISE, resulting in either complete access denial or overly permissive network access. The project lead has expressed concern about the timeline and potential impact on business operations at the new location. Which of the following approaches best demonstrates the engineer\'s adaptability, problem-solving abilities, and strategic vision in addressing this complex integration challenge while maintaining operational integrity?

Accepted Answer

Systematically analyze the ISE profiling policies for the new branch, focusing on identifying any specific attribute mismatches or threshold discrepancies for the newly encountered device types, and iteratively refine the profiling rules while simultaneously monitoring the SD-WAN overlay traffic steering based on updated SGT assignments to ensure policy compliance and seamless connectivity.

Question 14

A network engineering group responsible for a critical SD-WAN deployment is frequently encountering scenarios where project priorities are abruptly altered by executive leadership, often without prior consultation or clear justification. This has led to a decline in team morale, missed interim milestones, and increased stress levels as engineers attempt to reallocate resources and adjust technical strategies on short notice. Which behavioral competency, when effectively applied by the team, would most directly mitigate the negative impacts of this dynamic and improve overall project execution effectiveness?

Accepted Answer

Demonstrating adaptability and flexibility by adjusting to changing priorities, maintaining effectiveness during transitions, and pivoting strategies when needed.

Question 15

During a critical incident, the primary Cisco SD-WAN controller (vManage) becomes unreachable by all branch sites. The existing overlay tunnels between branches remain operational, and local data plane forwarding continues based on previously learned information. However, the network operations team is unable to push any new policy configurations or onboard new branch devices. Which of the following accurately describes the most significant immediate impact on the SD-WAN fabric\'s functionality?

Accepted Answer

The fabric loses its ability to dynamically provision new branch sites and enforce updated network-wide policies.

Question 16

A global enterprise is simultaneously transitioning from a legacy MPLS WAN to a Cisco SD-WAN solution and integrating Cisco Identity Services Engine (ISE) for granular network access control. This complex undertaking involves cross-functional teams, evolving project priorities, and the potential for unforeseen integration challenges between the SD-WAN fabric and ISE\'s policy enforcement points. Which behavioral competency is most critical for the system engineering team to effectively manage this dual transition and ensure minimal disruption to business operations?

Accepted Answer

Adaptability and Flexibility

Question 17

During the phased deployment of a new Cisco SD-WAN fabric across a multinational corporation, network engineer Elara encounters significant interoperability challenges between the SD-WAN edge devices and existing, non-standard network access control lists (ACLs) on legacy routers. The business unit responsible for the legacy infrastructure is hesitant to approve immediate configuration changes, citing potential disruption to critical operations. Elara must devise a strategy that allows for the SD-WAN rollout to proceed while mitigating the immediate risks and addressing the underlying compatibility issues without compromising network security or performance. Which of Elara\'s behavioral competencies is most critical for successfully navigating this complex and ambiguous situation?

Accepted Answer

Adaptability and Flexibility, coupled with Problem-Solving Abilities and Communication Skills

Question 18

When a zero-day exploit targeting IoT devices necessitates immediate network isolation within a Cisco SD-WAN fabric managed with ISE for granular access control, what is the most effective approach for a system engineer to demonstrate adaptability and initiative while ensuring minimal disruption to critical business operations?

Accepted Answer

Proactively create a temporary, highly restrictive ISE authorization policy that assigns all newly detected IoT devices to a quarantine SGT, then dynamically update SD-WAN policies to route traffic from this quarantine SGT exclusively to a dedicated, monitored egress point for further analysis, while simultaneously initiating a broad system-wide security review.

Question 19

Anya, a senior network engineer, is tasked with integrating a new remote site into an established Cisco SD-WAN fabric. The site currently relies on an older, non-Cisco firewall that lacks native support for the Overlay Management Protocol (OMP) and is not designed to align with the organization\'s stringent Zero Trust security posture. Anya must ensure the new site is securely and efficiently connected, adhering to data privacy regulations and maintaining the integrity of the existing SD-WAN overlay. What is the most appropriate strategic approach for Anya to achieve this integration, considering potential constraints on immediate hardware replacement?

Accepted Answer

Deploy a Cisco Catalyst 8000 series router or a Cisco Secure Firewall at the branch to serve as the SD-WAN edge device, enabling OMP and Zero Trust policy enforcement, with the legacy firewall potentially integrated behind it or its functions consolidated.

Question 20

A system engineer is tasked with integrating a new remote branch office, equipped with a Cisco ISR 1100 Series router, into an established Cisco SD-WAN fabric. The primary objective is to ensure a seamless and secure zero-touch provisioning (ZTP) process. Considering the inherent security model of SD-WAN and the role of the device in establishing trust with the central management plane, what foundational element is paramount for the successful onboarding and subsequent secure operation of this branch CPE within the fabric?

Accepted Answer

A valid and trusted device certificate pre-installed on the ISR 1100 Series router.

Question 21

A multinational corporation is implementing a Zero Trust Network Access (ZTNA) strategy leveraging Cisco SD-WAN and Identity Services Engine (ISE). During a security audit, it was observed that while ISE correctly identifies and authenticates users, the network traffic for high-priority, low-latency applications is not consistently routed over the optimal WAN links as defined in the SD-WAN policy. This inconsistency occurs even when ISE assigns appropriate authorization policies and Security Group Tags (SGTs) to compliant users. Which of the following approaches most effectively addresses this discrepancy by ensuring that ISE authorization directly influences SD-WAN path selection for sensitive applications?

Accepted Answer

Configure SD-WAN forwarding policies to dynamically select WAN paths based on the SGTs assigned by ISE, ensuring that specific SGTs are mapped to pre-defined optimal paths for critical applications.

Question 22

Anya, a seasoned system engineer, is spearheading the transition of a large enterprise\'s distributed branch offices from a traditional MPLS network to a Cisco SD-WAN fabric. A critical component of this migration involves integrating the existing Cisco Identity Services Engine (ISE) deployment for network access control and policy enforcement. Anya needs to ensure that the security policies defined in ISE, which include granular segmentation based on device type, user role, and endpoint posture, are effectively translated and enforced within the SD-WAN overlay. Specifically, she must address how to dynamically apply security group tags (SGTs) derived from ISE profiling and authentication results to traffic traversing the SD-WAN tunnels, thereby maintaining consistent segmentation and access control across the entire network. Which of the following approaches best addresses this integration challenge, demonstrating a nuanced understanding of both SD-WAN policy constructs and ISE\'s role in a zero-trust framework?

Accepted Answer

Configure ISE to assign Security Group Tags (SGTs) to endpoints upon successful authentication and authorization, and then map these SGTs to Cisco SD-WAN security policies to enforce access controls between different security groups across the WAN edge devices.

Question 23

Anya, a senior network engineer, is leading the integration of a newly acquired company\'s remote site into the enterprise SD-WAN fabric. The provided documentation for the new site is incomplete, leaving significant ambiguity regarding its existing network topology and security posture. A critical business application hosted at this site must be operational and fully integrated within 72 hours to avoid significant revenue loss. Anya discovers that the assumed IP addressing scheme for the new site conflicts with the existing fabric\'s segmentation policies. She must rapidly develop and implement a revised integration plan, potentially involving on-site configuration adjustments and policy re-engineering, without direct oversight or detailed guidance for the ambiguous aspects of the new site. Which combination of behavioral competencies would be most critical for Anya to effectively navigate this complex and time-sensitive integration?

Accepted Answer

Adaptability and Flexibility, Initiative and Self-Motivation, and Problem-Solving Abilities

Question 24

Anya, a network engineer, is orchestrating the deployment of a new Cisco SD-WAN solution for a growing enterprise, aiming to replace legacy MPLS links with a more agile and secure overlay. A significant component of this initiative involves integrating Cisco Identity Services Engine (ISE) to enforce granular security policies and perform endpoint posture assessments before granting network access. During the integration phase, Anya anticipates potential policy conflicts between the SD-WAN\'s overlay security constructs and ISE\'s access control mechanisms for newly provisioned devices. Considering the need for seamless security enforcement and dynamic policy application, which strategy would most effectively mitigate these potential policy conflicts and ensure consistent security posture across the SD-WAN fabric?

Accepted Answer

Configure the SD-WAN solution to leverage ISE for device authentication and authorization, ensuring that ISE dictates access privileges and security policies that the SD-WAN overlay subsequently enforces based on validated endpoint identity and posture.

Question 25

A regional medical center\'s primary branch office, critical for patient data access, is experiencing sporadic but significant disruptions in its SD-WAN connectivity, impacting essential services. Initial diagnostics suggest no overt hardware failures on the branch edge device. The network operations center reports no widespread outages affecting the core SD-WAN controllers. The branch network team has confirmed local network stability. Considering the need for rapid resolution and the potential for escalating impact, which of the following investigative approaches best exemplifies the required adaptability, problem-solving, and leadership competencies for a system engineer tasked with resolving this complex, ambiguous situation?

Accepted Answer

Systematically analyze SD-WAN tunnel status, OMP adjacency, and vEdge/cEdge device logs for recurring anomalies, then correlate any findings with transport layer metrics and branch-specific network telemetry, preparing to pivot to a deeper analysis of underlying transport infrastructure or local branch network configuration if initial SD-WAN fabric checks prove inconclusive.

Question 26

Consider a scenario within a Cisco SD-Access fabric where a corporate-issued laptop, initially compliant with security policies as verified by Cisco ISE, is subsequently found to have an unpatched critical vulnerability during a routine posture assessment. Which of the following actions, initiated by ISE, would most effectively mitigate the immediate security risk while adhering to the principles of dynamic policy enforcement and minimal user disruption?

Accepted Answer

Trigger a RADIUS Change of Authorization (CoA) to re-authenticate the user session, assigning an authorization profile that places the device on a quarantined VLAN with access only to necessary remediation resources.

Question 27

A network engineering team is tasked with implementing a new Cisco SD-WAN fabric integrated with ISE for advanced policy enforcement. During the initial deployment phase, unexpected compatibility issues arise between the legacy authentication protocols and the new ISE posture assessment workflows, threatening to delay critical business operations. The project lead is requesting an immediate update on the revised timeline and mitigation strategies, while also emphasizing the need to maintain the overall security posture. Which behavioral competency is most critical for the system engineer to effectively manage this situation and ensure successful project delivery?

Accepted Answer

Adaptability and Flexibility

Question 28

A critical security alert flags a corporate workstation within a Cisco SD-Access fabric as compromised. The Cisco Identity Services Engine (ISE) subsequently revokes the workstation\'s authorization, assigning it a new, highly restrictive security group tag (SGT) and directing it to a quarantine segment. Which operational characteristic of the SD-Access fabric is most directly demonstrated by its successful and seamless transition of the workstation to the quarantine segment, reflecting the updated security posture without requiring manual intervention on the fabric edge nodes?

Accepted Answer

Dynamic SGT reassignment and policy enforcement based on real-time ISE authorization updates

Question 29

Anya, a senior network engineer, is implementing a new Cisco SD-WAN solution for a global enterprise that spans multiple continents. During the rollout, she encounters a requirement to ensure that only authenticated and authorized IoT devices from a newly acquired subsidiary can communicate with specific cloud-based analytics platforms, adhering to a zero-trust security model. Anya needs to define the most effective strategy for integrating these devices into the existing SD-WAN fabric, ensuring granular policy enforcement based on identity and device posture, without manual intervention for each new device. Which of the following strategies best aligns with the principles of zero-trust network access within a Cisco SD-WAN and ISE environment for this specific scenario?

Accepted Answer

Configure Cisco ISE to profile and authenticate IoT devices based on their unique identifiers and establish a dynamic security group tag (SGT) for each device type, then utilize vManage to enforce SD-WAN policies that permit communication only to the designated cloud platforms based on these SGTs, contingent upon a successful posture assessment.

Question 30

A large financial institution is migrating its branch offices to a Cisco SD-WAN solution and integrating Cisco Identity Services Engine (ISE) for enhanced security posture and policy enforcement. A critical requirement during this transition is to securely onboard and manage a new fleet of specialized IoT devices used for environmental monitoring within branch server rooms. These devices have unique communication patterns and require a more restricted access profile compared to standard corporate endpoints. Considering the dynamic nature of the SD-WAN fabric and the need for granular, context-aware security, what is the most effective approach to ensure these IoT devices are segmented and granted only the necessary network privileges upon connection?

Accepted Answer

Configure ISE to profile the IoT devices based on their network behavior and MAC OUI, assigning them to a specific Security Group Tag (SGT) and a corresponding authorization profile that dictates their access permissions within the SD-WAN fabric.

Cisco Enterprise Networks SDA, SDWAN and ISE Exam for System Engineers Free Practice Test — 30 Questions

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