Architecture

ENCOR · 45 questions

• A municipal campus is consolidating wiring closets before a civic-center expansion and must choose a high-level campus design. When is a collapsed-core (2-tier) design a better fit than a classic 3-tier design?
• County elections planners want a fabric-capable underlay so a future SD-Access overlay is not stranded for bandwidth or leaf capacity. Which high-level design consideration should they prioritize first?
• City SaaS tax-portal traffic increasingly exits toward cloud edges rather than staying on campus. Which high-level design trade-off should architects emphasize when comparing on-campus aggregation to a cloud-connected pattern?
• Library branches want first-hop gateway redundancy so clients keep a default gateway during an uplink failure without waiting for Layer 2 STP reconvergence alone. Which approach addresses that need?
• Police HQ dual-supervisor chassis must keep forwarding during control-plane failover. Which high-availability feature is intended to provide stateful switchover of the control plane rather than a cold reboot of the newly active supervisor?
• Transit operations links dual distribution switches and debates HA techniques before a cutover. Which statement correctly contrasts device redundancy with path redundancy?
• Parks HQ outgrew a single collapsed core and is adding a dedicated core layer for east-west civic applications. Why introduce a separate core tier in that situation?
• Wastewater SCADA gateways need dual uplinks and dual gateways before monsoon season. Which HA combination best matches that edge requirement?
• A school district wants centralized wireless LAN controller management across fifty campuses with consistent policy. Which wireless deployment model characteristic best matches that goal?
• Remote ferry terminals lack local IT staff, and the county wants easy install plus cloud visibility for wireless. Which deployment model best fits?
• A convention center is comparing controller-based wireless to a controller-less design for one large venue. What is a primary trade-off they should weigh?
• County clerk branch offices must keep local wireless client forwarding if the WAN path to the HQ WLC drops. Which wireless design approach addresses that risk?
• A museum wayfinding app requires the WLAN design to support location services for visitor devices. Which design consideration is most relevant?
• Stadium bowl Wi-Fi fails post-event surveys after ticket-holder density spikes. At a design-principle level, what must planners prioritize?
• Animal services wants a remote-branch wireless model with a lightweight local AP footprint and centralized oversight. Which statement best identifies that model’s intent?
• City hall atrium mixes guests and staff and needs centralized policy with optional local data-path flexibility. How should designers match the wireless deployment model?
• County WAN refresh compares traditional hub-and-spoke MPLS to Cisco SD-WAN overlays for branch clinics. Which benefit is most characteristic of SD-WAN at ENCOR principle depth?
• Emergency management asks which plane in Cisco SD-WAN is primarily responsible for building control relationships among controllers and WAN edges at principle depth?
• Sanitation branch routers must encrypt and forward overlay traffic, but staff confuse planes. Which statement correctly identifies the SD-WAN data plane role?
• A port authority wants transport independence across LTE and broadband underlays using SD-WAN principles. What does that benefit mean?
• City finance flags operational complexity before purchasing SD-WAN controllers. Which limitation should architects acknowledge at principle depth?
• Housing authority engineers map vManage-class orchestration into the Cisco SD-WAN plane story at ENCOR depth. Where does that orchestration/management function fit?
• A 911 PSAP needs predictable underlay transport plus overlay encryption. How should architects separate responsibilities in Cisco SD-WAN principles?
• A courthouse campus evaluates SD-Access fabric and asks what the fabric control plane primarily contributes versus classic VLAN sprawl?
• A community college asks what carries user traffic in the SD-Access fabric data plane at principle depth?
• City hall is phasing Cisco SD-Access into one building while the rest of the campus stays on a traditional distribution block. What migration approach best matches ENCOR SD-Access principles?
• Police evidence VLANs are moving into an SD-Access fabric while several non-fabric floors must still reach those resources. Which fabric role is primarily responsible for that handoff at ENCOR principle depth?
• Library RFID scanners need segmentation inside an SD-Access fabric without first redesigning every classic access VLAN. What fabric capability primarily enables that outcome?
• A municipal hospital is comparing SD-Access fabric edge onboarding with assigning clinician devices to static access VLANs. What is the key contrast at ENCOR principle depth?
• Airport operations wants SD-Access in new terminals but must keep legacy printers reachable on a non-fabric floor. Which statement best reflects traditional campus interoperability?
• Voter registration offices ask which SD-Access plane tracks endpoint identity and location mappings across the fabric?
• Dispatch radio-over-IP and civic VoIP share congested uplinks. When interpreting the campus QoS policy, which statement correctly separates common QoS components?
• A school district voice SSID must keep the same treatment as wired classroom phones across the campus path. What should architects verify when interpreting end-to-end QoS?
• Courts streaming evidence video is being dropped hard at the WAN edge during bursts. Interpreting the QoS policy, which behavior indicates policing rather than shaping?
• Transit operations marks PSAP-bound traffic at trusted phones, then asks where the campus QoS trust boundary should typically be enforced?
• City guest Wi-Fi bulk transfers share an uplink with ticket-window VoIP. Interpreting a CBWFQ-style policy, what outcome should staff expect under congestion?
• Parks drone uplinks compete with staff laptops on a congested distribution link. Which QoS component is responsible for scheduling packets from queues after traffic has already been classified and marked?
• A municipal hospital needs clinician softphones on WLAN to receive the same expedited forwarding treatment that wired campus phones already get. What should the QoS interpretation confirm?
• After a supervisor upgrade, the city core must forward civic application traffic with Cisco Express Forwarding rather than process switching. What is the key characteristic of CEF in that role?
• An access switch in the civic center is filling its MAC address table, and staff worry they are also exhausting ACL capacity. How do CAM and TCAM roles differ?
• After a static route change on an edge router, the civic NOC sees confusion between the routing table and what is actually used to forward packets. Which table should they inspect for the CEF forwarding decision?
• Distribution TCAM exhaustion is preventing new ACL entries from installing for court VLANs. What does that symptom indicate about TCAM's role?
• At the water plant, CEF shows incomplete adjacency information after an ARP failure and traffic to that next hop is blackholed. What role does the adjacency table play?
• A campus engineer explains the hardware switching path on the city core. Which components correctly describe optimized CEF forwarding versus a software punt?
• A library stack switch ages out CAM entries and unknown unicasts begin flooding, which staff mistakenly blame on the Layer 3 FIB. What distinction should they apply?