ExtremeWireless Cloud (ECS Professional) flashcards

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

Network policy

A reusable ExtremeCloud IQ configuration grouping supported wireless, template, port and management elements for an intended deployment scope.

Airtime contention

Competition for shared wireless transmission opportunities that can limit busy-room capacity even when clients receive a strong radio signal.

Channel reuse

The planned allocation of spectrum across relevant cells, balancing width, interference and demand under actual regulatory and device constraints.

Client-stage diagnosis

Separating association, authentication, address assignment, name resolution and application behavior so an investigation targets the observed failed stage.

CoPilot anomaly

An analytics observation about relevant network behavior under supported coverage, requiring correlation rather than automatic acceptance as a conclusive root cause.

Least Privilege

The principle that users and systems should be granted only the minimum access rights necessary to perform their tasks, reducing the potential damage from accidents or malicious activity.

Separation of Duties

A control that divides critical tasks among different individuals so that no single person can complete a sensitive action alone, helping to prevent fraud and errors.

Role-Based Access Control (RBAC)

An access control model where permissions are assigned to roles rather than individual users, and users are assigned to roles based on their job responsibilities.

Multi-Factor Authentication (MFA)

An authentication method that requires two or more independent credentials from different categories (something you know, have, or are) to verify a user's identity.

Authentication

The process of verifying the identity of a user, device, or system, typically through credentials such as passwords, tokens, or biometrics.

Authorization

The process of determining what actions or resources an authenticated entity is permitted to access, often enforced through access control policies.

Single Sign-On (SSO)

A mechanism that allows a user to log in once and access multiple applications or systems without re-entering credentials, improving usability and centralizing access control.

Encryption

The process of converting plaintext into ciphertext using an algorithm and a key, so that only authorized parties can read the original information.

Symmetric Encryption

An encryption method that uses the same secret key for both encryption and decryption, offering speed but requiring secure key distribution.

Asymmetric Encryption

Encryption using a suitable public-key scheme and a corresponding private key for decryption. Authenticated key distribution and the specified padding/protocol remain essential; signatures and key agreement are distinct constructions.

Hash Function

A digest construction mapping input to an output under its defined algorithm, with cryptographic versions designed for appropriate resistance properties. Password storage needs a suitable salted password-hashing/KDF scheme rather than a bare fast digest.

Digital Signature

An electronic signature that uses asymmetric cryptography to verify the authenticity and integrity of a message or document.

Access control

The policies and mechanisms that determine who can access which systems, data, or facilities and under what conditions.

Firewall

A network security device or software that monitors and controls incoming and outgoing traffic based on predetermined security rules, acting as a barrier between trusted and untrusted networks.

Intrusion Detection System (IDS)

A system that monitors network or system activities for malicious actions or policy violations and generates alerts, but does not typically take active blocking measures.

Intrusion Prevention System (IPS)

A system that monitors network traffic for malicious activity and can actively block or prevent detected threats, unlike an IDS which only alerts.

Network Segmentation

The practice of dividing a computer network into smaller subnetworks or segments to improve security, limit lateral movement, and contain breaches.

Virtual Private Network (VPN)

A technology that creates a secure, encrypted connection over an untrusted network, allowing remote users or sites to communicate as if on a private network.

Security Information and Event Management (SIEM)

A system that collects, aggregates, and analyzes log data from various sources to detect security incidents and support compliance reporting.

Incident Response

A structured approach to handling security incidents, typically including preparation, detection, containment, eradication, recovery, and lessons learned.

Business Continuity Plan (BCP)

A document that outlines how an organization will continue critical operations during and after a disruption, including strategies for recovery and restoration.

Disaster Recovery Plan (DRP)

A plan focused on restoring IT infrastructure and operations after a disaster, including backup restoration and recovery time objectives.

Backup

The process of copying data to a secondary location or medium to enable recovery in case of data loss or corruption.