Rechenweg Fachinformatiker

Rechenweg Fachinformatiker shows you the worked solution that the German IT apprenticeship exams AP1 and AP2 ask for: formula, the values you plug in, intermediate results and the result. The trainer tells you where your calculation goes off track instead of just marking it wrong. Every method comes with a graphic you can tap that makes the worked solution visible step by step. For one example per method this is free, for your own numbers with Pro.

WHAT YOU CALCULATE • Number systems and codes: conversion, two's complement, floating point numbers • Logic and circuits: truth tables, Karnaugh maps, adders, flip-flops • IP addressing and subnetting: network, broadcast, host count, VLSM • Storage and transmission: storage needs, transmission time, RAID • Data modelling and normalisation: keys, normal forms, ER model • SQL: queries with JOIN, GROUP BY and HAVING, following the result • Business calculations in IT: offer comparison, weighted scoring, depreciation • Network plan and project planning: forward and backward pass, float, critical path • IT security: risk matrix, availability, checksums, brute-force time • Data protection under the GDPR: legal bases, deadlines, measures

TRAIN AND LEARN The trainer starts with worked examples, hides steps bit by bit and finally lets you calculate on your own. A true-or-false trainer checks your understanding with a reason, and the practice exam follows the layout of a real exam if you like. Hints help you in stages, and typical mistakes are named instead of just marked wrong. The study plan spreads the material backwards from your exam date. If you like, the worked solution also shows the key sequence for your calculator. An optional study reminder (at most one a day) keeps you on track.

FREE AND PRO Free: every calculator with result and formula, one worked example per method with the complete worked solution, the trainer's worked solutions and the progress overview. Pro: complete worked solution for your own numbers, trainer levels 2 to 4 with generated problems, practice exam, daily plan and study plan and export of the worked solution as PDF. Pro keeps growing: we keep adding new problems and further modules.

Pro is available as a monthly, a semester (6 months) and a yearly subscription. The monthly subscription starts with a 7 days trial if you have not used it before. The store shows price and term before you buy. The subscription renews automatically unless you cancel at least 24 hours before it ends. You can manage and cancel it any time in your Apple ID settings.

A learning and calculation aid, no guarantee of exam success. No account, no advertising: your learning progress stays on your device.

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