Cambridge Mock Test — Computer Science
Cambridge · Class 6 · Computer Science · 5 questions · 30 min · Medium
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- Q1What is the base of the binary number system used by computers?
- Q2What is the base of the decimal number system?
- Q3Which two digits are used in the binary number system?
- Q4The table shows a binary number. What is its decimal value? %%% | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 | |---|---|---|---|---|---|---|---| | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | %%%
- Q5Which row correctly represents the decimal number $25$ in binary? %%% | Row | 128 | 64 | 32 | 16 | 8 | 4 | 2 | 1 | |---|---|---|---|---|---|---|---|---| | A | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | | B | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | | C | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | | D | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | %%%
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