A free CISA cheat sheet: the five domains and official weights, audit and control terms, and business-resilience essentials for final pre-exam revision.
By The Exam Atlas Editorial Team · Verified 2026-06-06
A final-revision summary for CISA. Study aid only - no notes are allowed in the proctored exam.
The five domains and weights
Domain
Official weight
Information Systems Auditing Process
18%
Governance and Management of IT
18%
IS Acquisition, Development and Implementation
12%
IS Operations and Business Resilience
26%
Protection of Information Assets
26%
CISA vs CISM in one line
CISA
CISM
Seat
Auditor - examines controls from the outside
Manager - runs the security programme from the inside
Verb
Assess, verify, report
Plan, build, operate
If a question tempts you to…
…gather evidence / report a finding
…implement or fix a control
If a CISA option has you fixing or operating a control, it is usually the wrong (CISM-style) answer.
Audit-process essentials
Term
Idea
Independence / objectivity
The auditor must not audit work they performed or own
Sufficient, appropriate evidence
Enough, and relevant + reliable, to support the conclusion
Risk-based auditing
Scope and effort follow where control failure hurts most
Sampling
Statistical vs judgemental selection of items to test
Materiality
Whether a finding is significant enough to matter
Control types
Term
Idea
Preventive
Stops an event (e.g., access control)
Detective
Spots an event after it happens (e.g., log review)
Corrective
Fixes or restores after an event
Compensating
Covers a gap when the primary control is impractical
Business-resilience essentials
The chain to remember: BIA → RTO/RPO → BCP/DRP - and the auditor checks the plans match the BIA and are actually tested.
Term
Meaning
BIA
Business Impact Analysis
RTO / RPO
Recovery Time / Recovery Point Objective
BCP / DRP
Business Continuity Plan / Disaster Recovery Plan
SoD
Segregation of Duties
Change management
Controlled approval of changes to systems
FAQ
Can I bring notes to the CISA exam?
No. CISA is a proctored exam. Use this for final revision before exam day only.