EDPT (Electronic Data Processing Test) Quiz 4 — Questions and Answers
Question 1: If a computer has 4 GB of RAM and 1 GB is used by the OS, what percentage of RAM is available for applications?
- 25%
- 50%
- 75% (Correct answer)
- 80%
Correct answer: 75%
3 GB available out of 4 GB total = 3/4 = 75% available for applications.
Question 2: Which data representation method uses only the digits 0 and 1?
- Octal
- Binary (Correct answer)
- Hexadecimal
- Decimal
Correct answer: Binary
Binary (base-2) uses only two digits: 0 and 1, which directly correspond to electronic off/on states.
Question 3: A function receives the value 8 and returns the value 64. Which operation is the function most likely performing?
- Multiplying by 8
- Squaring the input
- Adding 56
- All of the above could produce 64 (Correct answer)
Correct answer: All of the above could produce 64
8 × 8 = 64, 8² = 64, and 8 + 56 = 64, so all three operations produce the same output for input 8.
Question 4: What does the acronym CPU stand for?
- Core Processing Utility
- Central Processing Unit (Correct answer)
- Computed Program Uplink
- Control Program Unit
Correct answer: Central Processing Unit
CPU stands for Central Processing Unit, the primary component that executes program instructions.
Question 5: In a spreadsheet, cell B3 contains the formula =B1+B2. If B1=12 and B2=8, what does B3 display?
- 12
- 8
- 20 (Correct answer)
- B1+B2
Correct answer: 20
The formula adds the values in B1 and B2: 12 + 8 = 20.
Question 6: Which of the following best describes 'lossless' data compression?
- Compression that reduces file size by discarding non-critical data
- Compression that allows exact original data to be reconstructed (Correct answer)
- Compression limited to image files only
- Compression applied only during data transmission
Correct answer: Compression that allows exact original data to be reconstructed
Lossless compression reduces file size while allowing the original data to be perfectly reconstructed upon decompression.
Question 7: What is the result of the expression: 15 MOD 4?
- 3 (Correct answer)
- 3.75
- 4
- 1
Correct answer: 3
15 ÷ 4 = 3 remainder 3, so 15 MOD 4 = 3.
EDPT (Electronic Data Processing Test) Quiz 4
If a computer has 4 GB of RAM and 1 GB is used by the OS, what percentage of RAM is available for applications?