Cisco ENCC (300-440) flashcards

33 cards. Read the term and the definition here. The deck at the top of this page is optional.

UCS X-Fabric

Cisco technology in UCS X-Series that pools PCIe resources across the chassis so GPU and other PCIe devices can be shared and allocated dynamically to compute nodes.

RoCEv2

RDMA over Converged Ethernet version 2, which encapsulates InfiniBand transport over UDP/IP. Used for low-latency AI east-west traffic on Nexus fabrics.

PFC

Priority Flow Control, an IEEE 802.1Qbb mechanism that pauses a specific traffic class on an Ethernet link. Prevents buffer drops for lossless RoCE traffic.

ECN marking

Explicit Congestion Notification marks packets instead of dropping them, signaling congestion to endpoints. Combined with DCQCN, it enables rate adaptation on AI fabrics.

Nexus Dashboard Insights

Cisco telemetry and assurance application that collects flow, buffer, and PFC statistics from Nexus switches to validate fabric health and troubleshoot AI workloads.

Oversubscription ratio

Ratio of total downstream capacity to uplink capacity in a leaf-spine fabric. Training AI clusters typically need 1:1, while inference tolerates higher ratios.

Cisco AI Defense

Cisco security product for AI applications that provides model validation, runtime guardrails, and red-teaming to detect unsafe or malicious model behavior.

Intersight

Cisco cloud-based management platform for UCS, HyperFlex, and Nexus. Handles server lifecycle, firmware, and policy through device connectors and SSO identity.

Cisco Secure Access

Cisco's SSE platform combining ZTNA, secure web gateway, CASB, DLP, and remote browser isolation in one cloud-delivered service with identity-based policy.

Umbrella DNS security

Cisco cloud security service that blocks malicious domains at the DNS layer before connections are made, using roaming clients, AD connectors, and category policies.

Duo MFA

Cisco multi-factor authentication service that verifies user identity and device trust before granting access to applications, integrated with VPN and ZTNA flows.

ZTNA

Zero Trust Network Access grants per-application access after verifying user identity and device posture, replacing broad VPN access with least-privilege tunnels.

Cisco ISE

Identity Services Engine provides network access control using 802.1X, MAB, and profiling, and enforces TrustSec group-based segmentation policy across the network.

TrustSec SGT

Security Group Tag assigned to traffic by ISE or the switch. SGACLs enforce segmentation policy based on tags rather than IP addresses or subnets.

Encrypted Traffic Analytics

Cisco technique that uses TLS fingerprinting and flow metadata to detect malware in encrypted traffic without requiring decryption of the sessions.

SASE

Secure Access Service Edge converges network and security functions such as SD-WAN, SWG, CASB, and ZTNA into a cloud-delivered architecture for distributed users.

SD-WAN Cloud OnRamp

Cisco SD-WAN feature that optimizes access to SaaS and cloud workloads by directing trusted traffic to the internet or cloud gateways with policy-based routing.

Catalyst Center

Cisco intent-based controller for campus networks, providing automation, assurance, and SD-Access fabric management through templates, telemetry, and health scoring.

SD-Access fabric roles

Fabric edge, border, and control plane nodes. LISP handles control plane mapping, VXLAN carries data, and ISE supplies identity and group-based policy.

NDFC

Nexus Dashboard Fabric Controller, formerly DCNM. Manages Nexus data center fabrics, VXLAN EVPN overlays, and device lifecycle as a service on Nexus Dashboard.

Catalyst SD-WAN Manager

Formerly vManage. Provides centralized configuration, monitoring, and policy for SD-WAN fabrics, working with vSmart controller and vBond orchestrator.

Cisco Meraki

Cloud-managed networking platform with dashboard-based configuration for wireless, switching, security, and SD-WAN, aimed at branch and mid-market deployments.

Intersight device connector

Agent that establishes outbound-only communication from managed devices to Intersight, enabling claiming and management without inbound firewall openings.

Catalyst Center templates

Reusable configuration artifacts, including CLI, velocity, and Jinja2 templates, used to deploy consistent device and fabric settings across the campus.

DNA Advantage tier

Cisco Catalyst Center licensing tier that adds advanced automation, assurance, and analytics features beyond the Essentials baseline for campus devices.

Cisco Success Tracks

Cisco CX offering combining software support, adoption guidance, and telemetry through CX Cloud to help customers plan, build, operate, and optimize deployments.

Cisco Expert Care

High-touch CX service tier providing named experts, proactive reviews, and rapid escalation for critical accounts with complex or high-risk environments.

CX Cloud

Cisco digital platform that aggregates device telemetry and contract data to surface adoption gaps, lifecycle alerts, and risk for Success Tracks customers.

Solution Support

Cisco support service that owns cross-technology issues end to end, coordinating multiple product teams and providing a single escalation point for the customer.

Business Critical Services

Cisco advisory and architecture service delivering proactive consulting in areas such as security, cloud, and automation beyond standard break-fix support.

Cisco Learning Credits

Prepaid entitlements tied to Cisco contracts that fund authorized training courses and certifications, consumed when ordering eligible learning offerings.

CX lifecycle stages

Cisco Customer Experience framework of Plan, Build, Operate, and Optimize, mapping support and adoption services to each phase of a customer deployment.

Designated Support Engineer

Named Cisco engineer assigned to a critical account under Expert Care, providing proactive reviews and direct reactive support with deep knowledge of the environment.