# Here are some example trial questions

It is unlikely that these exact questions are asked, do not simply memorize these questions if you hope to pass.

# Conversion

• What is 0b1001 in Base Ten? (Answer: 9)
• What is 0b110 in Base Ten? (Answer: 6)
• What is 7 in Binary? (Answer: 111)
• What is 13 in Binary? (Answer: 1101)

# Negatives

• How do we represent negative values in binary? (Answer: 2’s complement / Invert and Add 1)
• What is the 2’s compliment of 0b1011 using 4 bits? (Answer: 0101)
• What is the 2’s compliment of 0b1110 using 4 bits? (Answer: 0010)

# Operations

• What is 0b1101 + 0b1011? (Answer: 11000)
• Using 2’s comp, what is 0b1001 - 0b1110 in 4 bits? (Answer: 1011)
• What is 0b1011 OR 0b1010? (Answer: 1011)
• What is 0b1001 AND 0b1101? (Answer: 1001)
• What is 0b1001 XOR 0b1110? (Answer: 0111)

# ALU Explanation

• Which gate are the inverters equivalent to?
• When is this wall torch on?
• How does the OR line make the 1st row of XOR gates operate like a row of OR gates?
• Why does FC act as an output inverter?

# ALU Demonstration

• Show me 0b1110 + 0b0111. (Answer: 10101)
• Show me 0b1011 - 0b1101. (Answer: 1110)
• Show me 0b0110 OR 0b1010. (Answer: 1110)
• Show me 0b1110 AND 0b1101. (Answer: 1100)
• Show me 0b1011 XOR 0b0111. (Answer: 1100)
• Show me 0b1110 NOR 0b0101. (Answer: 0000)
• Show me 0b1001 NAND 0b0011. (Answer: 1110)
• Show me 0b0110 XNOR 0b1101. (Answer: 0100)
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Here is how my trial usually goes:

My trials are a maximum of 45mins, and there are three phases:

1. Preliminary Questions
In this section, the Testificate is asked questions on base conversions, bit-wise operations, and any circuit in the link below. (from Logic Circuits down). Usually five questions
Redstone circuits – Minecraft Wiki
2. Build Phase
Testificates build their circuit as specified in the application.
3. Trial Questions
I ask some questions to evaluate the Testificate’s understanding of their circuit. They may be asked to describe what certain parts do.