2IC30 · assessment
Practice exams
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Practice Exam A
6 questions
3 hours · 90 points · Modelled on the real 2IC30 exam (6 questions, 90 pts). Attempt each on paper, then reveal the model solution. Permitted aids: basic calculator + ARM/PP2 instruction summaries.
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· 16 ptsSelf-review
Question 1
Number systems & 2's-complement.
(a) Convert 2024 (decimal) to base 7.
(b) Convert 1101 1110 1100 1010 (binary) to hexadecimal.
(c) Give the 8-bit two's-complement of −45 and the minimal number of bits needed.
(d) An 8-bit adder computes 1100 0011 + 1000 1111. Give the result and the flags C, V, N, Z; explain the carry.
(a) Convert 2024 (decimal) to base 7.
(b) Convert 1101 1110 1100 1010 (binary) to hexadecimal.
(c) Give the 8-bit two's-complement of −45 and the minimal number of bits needed.
(d) An 8-bit adder computes 1100 0011 + 1000 1111. Give the result and the flags C, V, N, Z; explain the carry.
Practice Exam B
6 questions
3 hours · 90 points · A second full mock with a different flavour per question. Reveal solutions only after attempting.
Question 1/6 · 0 reviews recorded
· 16 ptsSelf-review
Question 1
(a) Convert ⟨2BEEF⟩₁₆ to binary and to base 8. (b) Give sign-and-magnitude and two's-complement 8-bit forms of −104. (c) 8-bit subtraction 1101 0101 − 0101 0100: result and flags C,V,N,Z, explaining the carry.