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Showing 20 results · Page 4 for “Cisco”. More results are available below.
CCNP-ENT · Network automation and APIs
Network automation expresses intended configuration through code or structured requests. Validate inputs, inspect proposed changes and apply them to a limited scope before broad rollout. Sto…
CCNP-ENT · IP routing
A router compares a packet's destination with its routing table and selects the most specific matching prefix before resolving other preferences among equivalent routes. A default route is u…
CCNP-ENT · Switching and VLANs
A switch forwards frames within a local network using MAC addresses. VLANs divide that switching environment into separate broadcast domains, while trunks carry traffic for multiple VLANs be…
CCNP-SEC · Identity and access
Authentication establishes who or what is requesting access. Authorization decides which actions that identity may perform on a resource. A successful sign-in therefore does not imply permis…
CCNP-SEC · Network protection
A network rule should express a justified communication path with the necessary source, destination, protocol and service. Segmentation limits how far a compromise can spread, but only when …
CCNP-SEC · Security architecture
A trust boundary is where data or actions cross between components with different security assumptions. Map those crossings and require appropriate validation, identity checks and authorizat…
CCNP-SP · Advanced routing design
Large networks need explicit decisions about which routes to learn, advertise and prefer. Summarization reduces routing information but can hide detail, while redistribution joins routing do…
CCNP-SP · Data center networking
Data-center networks connect compute and storage across many links and devices. Redundant paths improve resilience when forwarding, loop prevention and failover work together. Consider east-…
CCNP-SP · Network protection
A network rule should express a justified communication path with the necessary source, destination, protocol and service. Segmentation limits how far a compromise can spread, but only when …
CCNP-WIRELESS · Network protection
A network rule should express a justified communication path with the necessary source, destination, protocol and service. Segmentation limits how far a compromise can spread, but only when …
CCNP-WIRELESS · Network troubleshooting
Network troubleshooting narrows the boundary between success and failure. Compare affected and unaffected devices, then examine link state, addressing, routes, name resolution and the applic…
CCNP-WIRELESS · Wireless security assessment
This concept review develops the reasoning needed for wireless security assessment. Start by identifying the relevant assets, permissions, evidence and trust boundaries. Distinguish what the…
CCST-IT · Computing fundamentals
RAM holds the instructions and data a computer is actively using. It is volatile, so losing power loses its contents. Persistent storage keeps saved files between sessions. Saving moves work…
CCST-IT · Network fundamentals
DNS translates names into addresses, while IP addressing identifies network interfaces and routing moves packets between networks. A device can have working network connectivity even when na…
CCST-IT · Support and troubleshooting
A useful troubleshooting process turns symptoms into a testable explanation. Establish what works, what fails and what changed, then choose a low-risk test that can distinguish likely causes…
CCST-NET · Network fundamentals
DNS translates names into addresses, while IP addressing identifies network interfaces and routing moves packets between networks. A device can have working network connectivity even when na…
CCST-NET · Network troubleshooting
Network troubleshooting narrows the boundary between success and failure. Compare affected and unaffected devices, then examine link state, addressing, routes, name resolution and the applic…
CCST-NET · Switching and VLANs
A switch forwards frames within a local network using MAC addresses. VLANs divide that switching environment into separate broadcast domains, while trunks carry traffic for multiple VLANs be…
CCST-SEC · Incident response
Containment limits ongoing damage, while eradication removes the cause and recovery restores trusted operation. These activities may overlap as new evidence appears. Preserve useful evidence…
CCST-SEC · Network protection
A network rule should express a justified communication path with the necessary source, destination, protocol and service. Segmentation limits how far a compromise can spread, but only when …
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