TS-C (NCCT) key terms
TS-C · Get comfortable with the vocabulary.
- Agent
- Related: Normalization, Health Check
A lightweight software component installed on an endpoint that runs checks, collects data, and reports back to a central management server, letting administrators act on devices without manual logins.
- Application Programming Interface (API)
- Related: Provisioning, Secrets Management
A defined set of rules and endpoints that lets one system request data or trigger actions in another programmatically, so tasks can be automated instead of performed by hand in a user interface.
- Normalization
- Related: Agent, Log Aggregation
The process of converting data from different sources into a common format, naming scheme, and scale so records can be compared, searched, and reported on consistently.
- Role-Based Access Control (RBAC)
- Related: Least Privilege, Separation of Duties
An access model where permissions are attached to roles rather than individual accounts, and users receive permissions by being assigned one or more of those roles.
- Least Privilege
- Related: Role-Based Access Control (RBAC), Separation of Duties
The principle of giving each user, service, or process only the permissions needed to do its job, and no more, to limit the impact of mistakes or compromised accounts.
- Single Sign-On (SSO)
- Related: Multi-Factor Authentication (MFA), Role-Based Access Control (RBAC)
An authentication arrangement in which a user logs in once at a central identity provider and is then granted access to multiple connected applications without signing in again.
- Capacity Planning
- Related: Horizontal Scaling, High Availability (HA)
The work of estimating future demand for users, data, and processing so that infrastructure, licensing, and budgets are sized before performance problems or outages occur.
- High Availability (HA)
- Related: Disaster Recovery, Health Check
A design that keeps a service running through component failures by duplicating critical parts, such as servers or database nodes, and automatically failing over between them.
- Horizontal Scaling
- Related: Capacity Planning, High Availability (HA)
Adding more machines or instances to a system so work is spread across them, as opposed to upgrading a single machine, which is called vertical scaling.
- Baseline Configuration
- Related: Configuration Drift, Compatibility Matrix
A documented, approved set of settings for systems and applications that serves as the reference standard; any deviation from it is treated as a change to be reviewed.
- Compatibility Matrix
- Related: Baseline Configuration, Staging Environment
A table showing which versions of a platform, operating systems, agents, and integrations are supported together, used to avoid unsupported combinations during upgrades and new installs.
- Multi-Tenancy
- Related: Role-Based Access Control (RBAC), Network Segmentation
An architecture in which one instance of an application serves several separate customer organizations, keeping each tenant's data and settings isolated from the others.
- Network Segmentation
- Related: Multi-Tenancy, Least Privilege
Dividing a network into smaller zones with controlled traffic between them, so a compromise in one zone is less likely to spread and access can be restricted by role.
- Staging Environment
- Related: Pilot Deployment, User Acceptance Testing (UAT)
A near-copy of the production environment used to test installations, upgrades, and configuration changes before they reach live users.
- Pilot Deployment
- Related: Staging Environment, Rollback Plan
A limited rollout to a small, representative group of users or devices, used to confirm that a change works before it is extended to the whole organization.
- Rollback Plan
- Related: Pilot Deployment, Backup and Restore
Documented steps and saved backups that let a team quickly return a system to its previous working state if a deployment or change fails.
- User Acceptance Testing (UAT)
- Related: Staging Environment, Pilot Deployment
Testing performed by real users or business owners against agreed requirements to confirm a deployed system supports actual work before it is formally accepted.
- Provisioning
- Related: Application Programming Interface (API), Role-Based Access Control (RBAC)
Creating and configuring the accounts, roles, devices, or infrastructure a user or service needs, usually through automation so that setup is repeatable and consistent.
- Installation Prerequisites
- Related: Compatibility Matrix, Staging Environment
The conditions that must exist before software can be installed, such as supported operating system versions, free disk space, open ports, certificates, and required accounts.
- Health Check
- Related: High Availability (HA), Escalation Path
An automated probe that confirms a component is running and responsive, often feeding dashboards or triggering alerts and failover when results fall outside expected ranges.
- Runbook
- Related: Root Cause Analysis, Escalation Path
A short, step-by-step guide for performing a routine operational task or handling a known incident, written so any trained team member can follow it consistently.
- Log Aggregation
- Related: Audit Trail, Normalization
Collecting log records from many systems into one central store so they can be searched, correlated, retained, and alerted on from a single place.
- Root Cause Analysis
- Related: Runbook, Escalation Path
A structured investigation that goes beyond the immediate symptom to identify the underlying reason a problem occurred, so a fix prevents recurrence rather than just restoring service.
- Patch Management
- Related: Baseline Configuration, Configuration Drift
The repeatable process of identifying, testing, approving, and applying software updates that fix defects and security flaws across systems on a defined schedule.
- Backup and Restore
- Related: Disaster Recovery, Recovery Point Objective (RPO)
Copying data and configurations to a separate location on a schedule, plus the tested procedures for loading those copies back when data is lost or corrupted.
- Configuration Drift
- Related: Baseline Configuration, Patch Management
The gradual divergence of live system settings from the approved baseline, caused by manual fixes and unrecorded changes, which makes behavior inconsistent and troubleshooting harder.
- Escalation Path
- Related: Runbook, Root Cause Analysis
A predefined sequence that says who to contact, and in what order, when a problem exceeds a support tier's skill or authority or breaches its response target.
- Encryption at Rest
- Related: Encryption in Transit, Secrets Management
Protecting stored data, on disks, backups, or databases, by encoding it so it is unreadable without the correct key, which limits damage if media is stolen.
- Encryption in Transit
- Related: Encryption at Rest, Secrets Management
Protecting data while it moves across a network by using encrypted protocols such as TLS, so intercepted traffic cannot be read or altered by an eavesdropper.
- Audit Trail
- Related: Log Aggregation, Data Retention Policy
A tamper-evident record of who did what, when, and from where across a system, kept so activity can be reviewed and evidence produced during investigations or audits.
- Data Retention Policy
- Related: Data Classification, Audit Trail
Rules that state how long each category of data must be kept, where it is stored, and when and how it is securely deleted.
- Data Classification
- Related: Data Retention Policy, Least Privilege
Assigning labels such as public, internal, confidential, or restricted to data so handling, access, and protection requirements match the sensitivity of the information.
- Separation of Duties
- Related: Least Privilege, Role-Based Access Control (RBAC)
Splitting sensitive tasks among different people so that no single account can both make and approve a high-risk change, reducing fraud and accidental misuse.
- Secrets Management
- Related: Encryption at Rest, Application Programming Interface (API)
Storing passwords, API keys, and certificates in a protected vault with controlled access and rotation, rather than embedding them in scripts or configuration files.
- Multi-Factor Authentication (MFA)
- Related: Single Sign-On (SSO), Least Privilege
Requiring two or more independent proofs of identity, such as a password plus a code from a phone, so a stolen password alone is not enough to sign in.
- Disaster Recovery
- Related: Recovery Time Objective (RTO), Backup and Restore
The plans, backups, and alternate infrastructure that let an organization restore critical services after a major outage, along with targets for how fast and how complete recovery must be.
- Recovery Time Objective (RTO)
- Related: Disaster Recovery, Recovery Point Objective (RPO)
The maximum acceptable time a service can be unavailable after a disruption, used to set recovery priorities and justify standby infrastructure or staffing.
- Recovery Point Objective (RPO)
- Related: Disaster Recovery, Backup and Restore
The maximum acceptable amount of data loss measured in time before a disruption, which determines how frequently backups or replication must run.