Cisco 300-540 SPCNI key terms

The relevant compute, storage and networking infrastructure supporting virtualized network functions under an actual supported execution and management architecture.

The conceptual management role addressing an individual VNF’s relevant lifecycle operations, distinct from infrastructure-resource management and service orchestration.

The conceptual management role handling relevant virtualized infrastructure resources, whose responsibilities differ from a VNF lifecycle manager or complete network-service orchestrator.

The conceptual role coordinating relevant network-service and resource orchestration under the NFV architecture, distinct from every per-instance or hardware operation.

A structured data-model description used with relevant management/state interfaces, not itself a transport protocol or a guarantee of every vendor’s schema support.

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.

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.

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

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

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.

A facility supporting relevant interconnection choices among carriers, customers or cloud paths under actual offerings, without an automatic encryption or resilience guarantee.

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

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

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

Advertising relevant reachability from multiple locations so routing selects a path, distinct from a universal geographic-nearest rule or application-session replication.

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.

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.

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.

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.

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

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

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.

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

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

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.

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.

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

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

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

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