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Showing 20 results · Page 11 for “security”. More results are available below.
CC · Security Operations
Symmetric encryption uses one shared key for both encryption and decryption, is fast and suits bulk data; AES is the standard. Its weakness is key distribution: every party needs the same se…
CC · Security Operations
…tising critical vulnerabilities. Together they support security by keeping the environment predictable. Exam scenarios about a security update being tested and approved before production are…
CC · Security Operations
…dence incident responders need. Centralising them in a security information and event management platform enables correlation, alerting and retention. Logs must be protected from tampering a…
CCA · Kubernetes security
Kubernetes security includes API permissions, workload identity, Pod configuration, network boundaries and image provenance. Grant only the API actions a component needs and avoid unnecessar…
CCIE-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…
CCIE-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 …
CCIE-SEC · Security architecture
…ata or actions cross between components with different security assumptions. Map those crossings and require appropriate validation, identity checks and authorization. Layer controls so one …
CCIE-WIRELESS · Wireless security assessment
…cept review develops the reasoning needed for wireless security assessment. Start by identifying the relevant assets, permissions, evidence and trust boundaries. Distinguish what the observa…
CCISO · Risk assessment and treatment
Risk combines the possibility of an unwanted event with its consequences for an objective. Identify the asset, threat and conditions before choosing a response. Controls may reduce likelihoo…
CCISO · Security architecture
…ata or actions cross between components with different security assumptions. Map those crossings and require appropriate validation, identity checks and authorization. Layer controls so one …
CCISO · Security foundations
Confidentiality limits who can see information, integrity protects against unauthorized changes, and availability keeps services usable. A control may support several objectives, but the imm…
CCNA · Security Fundamentals
A standard ACL, numbered 1 to 99 or 1300 to 1999, matches purely on source IP address, so it should be placed as close to the destination as possible to avoid blocking traffic that was heade…
CCNA · Security Fundamentals
Port security limits which MAC addresses may send on a switch port. When the limit is exceeded, the violation mode decides what happens. Protect silently drops frames from unknown addresses.…
CCNA · Security Fundamentals
DHCP snooping divides switch ports into trusted, normally uplinks toward the real DHCP server, and untrusted, everything facing users. Server messages such as Offer and Ack arriving on untru…
CCNA · Security Fundamentals
…rames and, in the Enterprise version, offers a 192-bit security mode. For exam purposes: WEP is broken, WPA used TKIP, WPA2 introduced AES-CCMP, and WPA3 introduced SAE.
CCNP-CYBER · Detection engineering and validation
This concept review develops the reasoning needed for detection engineering and validation. Start by identifying the relevant assets, permissions, evidence and trust boundaries. Distinguish …
CCNP-CYBER · 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…
CCNP-CYBER · Traffic analysis
A packet capture records traffic visible at a particular point, so its location and timing affect what it can prove. Follow the conversation across requests, responses, retransmissions and r…
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 …
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