UGBS 102 — Session 6 Prep Test: Data Representation

This prep test covers UGBS 102 Introduction to Computing, Session 6: Data Representation for University of Ghana Distance Education students. The questions are set at a standard computing-exam level: scenarios, best-answer and "which is NOT" questions, and binary, ASCII and data-size calculations.

Topics: what data is, analogue and digital data, ADC and DAC converters, binary digits and transistors, binary and decimal number systems and conversions, digitising data, bytes and ASCII codes, bitmapped images and colour depth, data sizes from bit to yottabyte, Internet speeds and data consumption, storage and memory growth, data-size word problems, computer specifications and 32-bit versus 64-bit processors.

• Section A: 35 multiple-choice questions (1 mark each)
• Section B: 10 true-or-false questions (1 mark each)
• Section C: 5 fill-in-the-blank questions (1 mark each)

Total: 50 marks · 30 minutes · pass mark 60% · up to 10 attempts. After each attempt you see the correct answers, a short explanation and the slide page to revise.

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