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Cheat sheet

CLEP Information Systems cheat sheet

A condensed reference for the formulas, graph-reading rules, and must-know facts most worth reviewing before exam day.

Core concepts

  • Hardware (input/processing/output/storage) vs software (system vs application).
  • Databases: tables, records, fields, primary keys; DBMS; SQL basics.
  • Networks: LAN vs WAN, the internet, client-server; the OSI idea of layers.

Development and security

  • SDLC: planning → analysis → design → implementation → maintenance.
  • Methods: waterfall vs agile.
  • Security: confidentiality/integrity/availability; malware, firewalls, encryption.

Practice this first: IS fundamentals - Core concepts and the role of information systems in business anchor the exam.

Now put it to work - practice CLEP Information Systems free

Reviewing the sheet is step one. Passers are usually hitting about 70-80% on realistic practice before test day, so the fastest way to know you are ready is to start answering real questions.