Match each SELinux context component to its purpose.
Drag a concept onto its matching description — or click a concept then click the description.
SELinux user identity
Role-based access control component
Type enforcement (most common)
Multi-Level Security sensitivity level
Combined sensitivity and category set
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
user: Identifies the SELinux user identity
In SELinux, the context format is user:role:type:level. User identifies the SELinux user, role defines accessible roles, type defines domain/object type, and level defines sensitivity/categories. Common confusions include swapping user/role or role/type.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
user: Identifies the SELinux user identity
Why this is correct
The user component in an SELinux context specifies the SELinux user identity, which determines the set of roles available.
role: Defines the set of roles that can be accessed
Why this is correct
The role component defines which roles the process can transition to, controlling access based on role-based access control.
type: Defines the domain for processes or file type for objects
Why this is correct
The type component identifies the domain for processes (subject) or the type for files (object), and is the primary component used in TE rules.
level: Defines the sensitivity level and categories
Why this is correct
The level component specifies the sensitivity (e.g., s0) and optional categories (e.g., c0.c1023) for MLS/MCS enforcement.
user: Defines the set of roles that can be accessed
Why it's wrong here
Incorrect — the user component identifies the SELinux user identity, not the set of roles. The role component defines roles.
role: Defines the domain for processes
Why it's wrong here
Incorrect — the role component defines roles, not the domain. The type component defines the domain for processes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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