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Can You Master Counting in Binary? Take the Quiz!

Ready for a binary practice test? Answer fun binary questions now!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for binary questions quiz on sky blue background

This binary quiz helps you practice binary numbers, bit logic, and quick conversions. Use it to spot gaps before an exam or interview and build speed with short, clear questions. When you want more, try extra binary number drills or focus on binary‑to‑decimal skills.

What is the decimal equivalent of the binary number 1010?
12
10
8
6
The binary number 1010 represents 1×2^3 + 0×2^2 + 1×2^1 + 0×2^0 which equals 8 + 0 + 2 + 0 = 10. Binary to decimal conversions use powers of two for each bit. To learn more, visit .
What term describes a single unit in a binary number?
Nibble
Bit
Byte
Digit
A single binary digit is called a bit, which is the smallest unit of data in computing. Eight bits make up one byte. For more details, see .
What is the binary representation of decimal 8?
0010
1000
0001
0100
Decimal 8 equals 2^3, so its binary form is 1000. Each position represents a power of two, and only the 2^3 place is set. More examples at .
Which of the following binary numbers equals decimal 5?
0110
1010
1001
0101
Binary 0101 is 0×2^3 + 1×2^2 + 0×2^1 + 1×2^0 = 4 + 0 + 1 = 5. The other patterns represent different totals. For more practice, see .
What is the binary representation of decimal 29?
10111
11001
10011
11101
Decimal 29 converts to binary by dividing by 2 repeatedly, yielding 11101. You can verify this since 16+8+4+0+1 = 29. Learn more at .
What is the result of adding binary numbers 1011 and 110?
10001
10010
11101
10110
Binary addition 1011 (11) + 0110 (6) produces 10001 (17). Carry operations occur at each bit where the sum exceeds 1. For step-by-step details, see .
What is the two's complement 8-bit representation of -5?
11110101
11111011
11111010
11111101
To find -5: start with binary 00000101, invert to 11111010, then add 1 to get 11111011. Two's complement is commonly used for signed integers. More info at .
What is the result of bitwise OR between 1010 and 1100?
1110
1100
1000
1010
Bitwise OR sets each bit to 1 if either input bit is 1, so 1010 OR 1100 = 1110. OR is used to combine flags and masks. See .
In ASCII, what is the binary code for uppercase 'A'?
01000010
01100001
01000001
00100001
ASCII assigns the code 65 decimal to 'A', which is 01000001 in 8-bit binary. Lowercase 'a' is a different value (01100001). For full tables, visit .
What is the result of bitwise XOR between 11010110 and 10111001?
11111111
00001111
01101111
01111111
Bitwise XOR outputs 1 only when bits differ: 1?1=0,1?0=1, etc., producing 01101111. XOR is used in checksums and cryptography. Read more at .
What is the result of shifting binary 00101100 two places to the right (logical shift)?
00010110
00001011
01011000
10010110
A logical right shift moves bits right and inserts zeros on the left: 00101100 >> 2 = 00001011. Used in unsigned arithmetic and bit manipulation. More at .
For the 4-bit data 1011, what is the even parity bit to append?
01011
11101
10110
10111
Even parity means the total count of 1s (including parity) is even. The data 1011 has three 1s, so parity bit must be 1, giving 10111. Details at .
What is the IEEE 754 single-precision binary representation of decimal 1.5?
0 01111110 10000000000000000000000
1 01111111 10000000000000000000000
0 01111111 01000000000000000000000
0 01111111 10000000000000000000000
In IEEE 754, 1.5 has sign 0, exponent 127 (01111111), and mantissa .5 => 1000...0. Full 32-bit form is 0?01111111?10000000000000000000000. See .
What is the Hamming distance between binary sequences 1101101 and 1001001?
3
2
1
4
Hamming distance counts differing bit positions: comparing 1101101 vs 1001001 they differ in two positions. It's used in error detection and correction. For more, visit .
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Study Outcomes

  1. Understand the binary numbering system -

    Readers will be able to explain how binary digits (bits) represent values using place value and the base-2 system.

  2. Convert decimal numbers to binary -

    Readers will apply division-by-2 and remainder methods to convert decimal values, such as 30, into binary form accurately.

  3. Interpret binary patterns in digital contexts -

    Readers will analyze binary sequences to determine numeric values and recognize basic logical states within digital systems.

  4. Apply binary counting principles to solve problems -

    Readers will use binary arithmetic and counting techniques to tackle quiz questions and real-world digital logic scenarios.

  5. Evaluate proficiency through scored feedback -

    Readers will assess their performance on the interactive binary quiz to identify strengths and areas for improvement.

  6. Prepare for binary exams with targeted practice -

    Readers will build confidence by engaging in focused binary question exercises and free binary practice for exam readiness.

Cheat Sheet

  1. Binary Place Values and Powers of Two -

    Each bit in a binary number represents a power of two (2^0, 2^1, 2^2, …), forming the foundation of all binary questions (MIT OpenCourseWare). For example, 10110₂ equals 1×2❴ + 0×2³ + 1×2² + 1×2¹ + 0×2❰ = 22. Use the mantra "double and add" as you move left across bits to streamline your binary practice.

  2. Decimal-to-Binary Conversion Technique -

    The classic division-by-2 method helps convert decimals into binary by recording remainders in reverse order (University of Michigan CS resources). For instance, converting 30 to binary: 30 ÷ 2 = 15 R0, 15 ÷ 2 = 7 R1, … yields 11110₂. Practicing this algorithm makes every binary exam feel like a breeze.

  3. Binary Addition and Carry Rules -

    Binary addition follows simple rules: 0+0=0, 0+1=1, 1+1=10 (carry 1), and 1+1+1=11 (carry 1 with sum 1) (Khan Academy). For example, adding 0111₂ + 0101₂ gives 1100₂ after handling carries. Mastering these steps ensures smooth sailing on any binary quiz or binary test.

  4. Two's Complement for Signed Numbers -

    Two's complement is the industry standard for representing negative values by inverting all bits and adding one (IEEE standards). For example, to encode - 5 in 8 bits: start with 00000101, invert to 11111010, then add 1 to get 11111011₂. This method simplifies arithmetic and is critical for digital systems and binary practice problems.

  5. Essential Bitwise Operations -

    Bitwise AND, OR, XOR, and shifts manipulate individual bits directly (Stanford CS Lecture Notes). For instance, 1011₂ AND 1101₂ = 1001₂, highlighting common patterns in logic gates. Regularly testing these operations in your binary questions toolkit builds confidence for real-world coding and system design.

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