Cisco DCCOR (350-601) flashcards
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32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- vPC peer-keepalive
- A dedicated heartbeat link between vPC peers used only to detect peer liveness; it does not carry user data and is separate from the peer-link.
- vPC peer-link
- A port-channel that carries all VLANs and control traffic between vPC peers; it must be a trunk and is required for vPC operation.
- Type-1 consistency check
- A vPC check for mandatory parameters such as MTU and STP mode; a mismatch keeps the vPC down until corrected on both peers.
- VXLAN VTEP
- A VXLAN tunnel endpoint that encapsulates Layer 2 frames in UDP (port 4789) for transport across a Layer 3 underlay.
- EVPN route types
- BGP EVPN uses route types including Type 2 (MAC/IP), Type 3 (inclusive multicast), and Type 5 (IP prefix) for control-plane learning.
- HSRP virtual MAC
- HSRP version 1 uses virtual MAC 0000.0c07.acXX, where XX is the group number in hex; version 2 uses 0000.0c9f.fXXX.
- OTV join interface
- The routed interface on an edge device used to build the OTV overlay tunnel to remote edge devices across the Layer 3 core.
- UCS Fabric Interconnect cluster
- Two FIs in a cluster share a virtual IP and run active/active; they must be in End-Host mode to run UCS Manager.
- Service profile template
- A reusable UCS template that defines pools, policies, and vNIC/vHBA layout; deriving profiles from it standardizes server provisioning.
- UCS LAN pin group
- A policy that restricts which FI uplink ports a vNIC may use; without it the FI selects uplinks automatically.
- UCS boot policy
- A policy that defines the boot order and targets, such as local disk, SAN LUN, or virtual media, for a service profile.
- Cisco Intersight
- A cloud-based or on-premises management platform for UCS, HyperFlex, and Nexus that uses device connectors and policy-based configuration.
- CIMC
- Cisco Integrated Management Controller, the BMC on standalone C-Series servers providing KVM, virtual media, and Redfish APIs.
- BIOS policy
- A UCS policy that sets firmware tunables such as hyperthreading, VT-d, and power settings for a server's BIOS.
- FLOGI
- Fabric login in Fibre Channel; the N_Port logs into the fabric and receives an FCID from the principal switch.
- PLOGI
- Port login in Fibre Channel; it establishes a session between two N_Ports before SCSI process login can occur.
- VSAN
- A logical partition of a physical SAN with its own domain ID, name server, and zoning, isolating traffic between fabrics.
- Hard zoning
- Fibre Channel zoning enforced by port; frames from unauthorized ports are dropped at the hardware level, unlike soft zoning.
- NPIV
- N_Port ID Virtualization allows one physical HBA port to register multiple WWPNs and FCIDs with the fabric.
- FCoE FIP
- FCoE Initialization Protocol performs discovery and login before FCoE data frames; it runs over lossless Ethernet with DCB.
- FCID format
- A 24-bit Fibre Channel address in the form 0xDDAAAA, where DD is the domain, AA the area, and AA the port.
- TACACS+ vs RADIUS
- TACACS+ encrypts the entire payload and separates authentication, authorization, and accounting; RADIUS encrypts only the password.
- DHCP snooping
- A switch feature that trusts only specified ports for DHCP offers and builds a binding table used by DAI and IP Source Guard.
- Dynamic ARP inspection
- A feature that validates ARP packets against the DHCP snooping binding table to block ARP spoofing on untrusted ports.
- CoPP
- Control-plane policing classifies and rate-limits traffic destined to the supervisor CPU, protecting it from DoS attacks.
- MACsec
- IEEE 802.1AE link-layer encryption providing hop-by-hop confidentiality and integrity on point-to-point Ethernet links.
- TrustSec SGT
- A Security Group Tag carried in the packet to enforce group-based policy; SGACLs allow or deny based on tag pairs.
- NETCONF
- A model-driven configuration protocol over SSH (RFC 6241) using YANG data models for get, edit, and commit operations.
- NX-API
- A Cisco NX-OS REST interface supporting JSON-RPC and XML; enabled with the feature nxapi command.
- Model-driven telemetry
- A push model that streams YANG-modeled data via gRPC or gNMI at high frequency, replacing periodic SNMP polling.
- Idempotency
- The property that running the same automation task repeatedly produces the same end state without unintended changes.
- Configuration checkpoint
- An NX-OS snapshot of the running configuration that can be restored with rollback running-config checkpoint <name>.