ExamSprintLab

Free certification study tools

Small tools that run in your browser, with nothing to install and no account. Each one explains the method as well as checking your answer, and links to the topic guide and the exams that test it.

  1. Subnetting practice trainerFree subnetting drill with endless questions: network and broadcast addresses, masks, host counts and subnet sizes, with the working shown for each answer.
  2. Risk calculation drill: SLE, ALE, AROPractise quantitative risk formulas for Security+ and CISSP-style exams: SLE, ALE, ARO, exposure factor and whether a control pays for itself.
  3. Port numbers flashcards and drillFree flashcard drill for well-known TCP and UDP port numbers: service to port, port to service and secure twins, with a full reference list.
  4. Binary and hex conversion drillFree drill for converting between decimal, binary and hexadecimal, and for reading subnet mask octets, with the working shown for every answer.