Glossary

Terms in bold are the ones the app displays.

Labs and scenarios

Term	Definition
Scenario	The definition of a lab: its environment, what is installed at the start, its tasks and its scoring. A scenario is Official (written by the Klastro team) or Studio (authored by your organization).
Lab	General word for any environment you launch, whatever its type.
Session	Your running copy of a scenario: a real, isolated environment built for you and destroyed when it ends. Its states are Starting, Provisioning, Ready, Paused and Ended.
Environment	The machines or cluster behind a session. Its type shows on the scenario page, for example Virtual Cluster, Lightweight Kubernetes, Multi Node Cluster or Virtual Machine.
Lifetime	The maximum duration of a session, set by the scenario. Paused time is not counted. When it runs out, the session ends automatically.
Pause	Pausing a session stops its environment while keeping your work; you Resume it later at the same point.
Catalog	The list of scenarios your organization can launch, filterable by product, level, source and tag.
Tutorial	A guided, step-by-step lab where each step can be checked. Hints are free.
Challenge	A graded task on a real environment. Your work is graded when you submit; hints cost points.
Playground	A blank environment with no instructions and no grading, for open exploration.
Assessment	A timed, proctored technical assessment made of one or more scenarios, which a candidate takes by invitation. Also the type of scenario reserved for that use.
Scenario Studio	Klastro’s scenario authoring tool, available on the plans that include it.

Inside the lab

Term	Definition
Task	A goal to reach in a scenario. In a tutorial, tasks show as Steps.
Check	The automatic test that inspects your environment to decide whether a task passes. In a tutorial you run it with Check this step.
Hint	Help you reveal when you need it. Free in a tutorial; costs points in a challenge or an assessment.
Points and Score	Each graded task is worth a number of points; the score is the total you earn. A Pass mark may apply.
Session shell	The lab’s main terminal, with kubectl, helm and ssh access to every machine.
Notes	A notepad saved automatically and attached to the session. In an assessment, the recruiter sees it in your report.
Lobby	An assessment’s waiting page, where your scenarios are prepared before you Enter.

Training

Term	Definition
Certification path	A roadmap of steps from the first concept to exam readiness. Progress is self-declared: milestones, not credentials.
Track	An instructor’s reusable curriculum: an ordered sequence of scenarios plus its materials. Not to be confused with a certification path.
Cohort	One delivery of a track to a group, at a scheduled time, led by an instructor.
Training session	What a participant sees of a cohort in My Training.
Trainee (cohort)	A person enrolled in a cohort (a cohort participant). Not to be confused with the free Community seat holder, see Trainee (seat).
Place	A trainee’s slot in a cohort, paid for in credits by the instructor. A place is not a seat.

Organization and billing

Term	Definition
Organization	The shared space of a company, school or community: members, plan, credits, scenarios. You can belong to several organizations.
Plan	Community, Pro, Instructor or Enterprise. It decides which products and scenarios you can reach.
Credits	The unit labs are paid in, metered on real running time and weighted by environment.
Trainee (seat)	A member who holds the free Community seat.
Seat	The access level given to a member: Trainee (free, Community), Pro Learner or Instructor.
Voucher	A code that adds credits to your balance. Any member can redeem one.
Invitation	An emailed link to join Klastro, join an organization, or take an assessment. An invitation can expire or be revoked.

To see these ideas in action, read What is Klastro?.