MCQs
| 1. | 1 byte is equal to (UP Police ASI 2018) | |
| A. | 10 bits | |
| B. | 8 bits | |
| C. | 16 bits | |
| D. | 12 bits | |
Answer: Option B
Explanation:
8 bits = 1 byte. So the answer is 8 bits.
Other useful information:
Bit/Binary digit = 0 (or) 1
4 bits = 1 nibble
8 bits = 1 byte
1024 bytes = 1 kilobyte (KB)
1024 kilobytes = 1 megabyte (MB)
1024 megabytes = 1 gigabyte (GB)
1024 gigabytes = 1 terabyte (TB)
1024 terabytes = 1 petabyte (PB)
1024 petabytes = 1 exabyte (EB)
1024 exabytes = 1 zettabyte (ZB)
1024 zettabytes = 1 yottabyte (YB)
| 2. | Which of the following is the highest unit of storage in computer field? (OSSC CGL 2023) | |
| A. | Exabyte | |
| B. | Zettabyte | |
| C. | Yottabyte | |
| D. | Gigabyte | |
Answer: Option C
Explanation:
1024 megabytes = 1 gigabyte (GB)
1024 gigabytes = 1 terabyte (TB)
1024 terabytes = 1 petabyte (PB)
1024 petabytes = 1 exabyte (EB)
1024 exabytes = 1 zettabyte (ZB)
1024 zettabytes = 1 yottabyte (YB)
So yottabyte > zettabyte > exabyte > gigabyte. So yottabyte is the highest.
| 3. | How much is one terabyte equal to ? (RRB JE 2019) | |
| A. | 1024 kilobytes | |
| B. | 1024 bytes | |
| C. | 1024 gigabytes | |
| D. | 1024 megabytes | |
Answer: Option C
Explanation:
1024 gigabytes = 1 terabyte (TB). So 1024 gigabytes is the answer.
Other useful information:
Bit/Binary digit = 0 (or) 1
4 bits = 1 nibble
8 bits = 1 byte
1024 bytes = 1 kilobyte (KB)
1024 kilobytes = 1 megabyte (MB)
1024 megabytes = 1 gigabyte (GB)
1024 gigabytes = 1 terabyte (TB)
1024 terabytes = 1 petabyte (PB)
1024 petabytes = 1 exabyte (EB)
1024 exabytes = 1 zettabyte (ZB)
1024 zettabytes = 1 yottabyte (YB)
| 4. | Which of the following is the correct sequence? (Haryana CET 2022) | |
| A. | Petabyte > Zettabyte > Gigabyte > Terabyte | |
| B. | Kilobyte > Petabyte > Yottabyte > Megabyte | |
| C. | Megabyte > Kilobyte > Terabyte > Gigabyte | |
| D. | Exabyte > Petabyte > Terabyte > Gigabyte | |
| E. | None of the above | |
Answer: Option D
Explanation:
1024 bytes = 1 kilobyte (KB)
1024 kilobytes = 1 megabyte (MB)
1024 megabytes = 1 gigabyte (GB)
1024 gigabytes = 1 terabyte (TB)
1024 terabytes = 1 petabyte (PB)
1024 petabytes = 1 exabyte (EB)
1024 exabytes = 1 zettabyte (ZB)
1024 zettabytes = 1 yottabyte (YB)
So here Exabyte > Petabyte > Terabyte > Gigabyte follows the correct sequence.
| 5. | One kilobyte is equal to _____ bytes. (NTPC 2020) | |
| A. | 2048 | |
| B. | 1024 | |
| C. | 256 | |
| D. | 512 | |
Answer: Option B
Explanation:
1024 bytes = 1 kilobyte (KB). So 1024 is the answer.
Other useful information:
Bit/Binary digit = 0 (or) 1
4 bits = 1 nibble
8 bits = 1 byte
1024 bytes = 1 kilobyte (KB)
1024 kilobytes = 1 megabyte (MB)
1024 megabytes = 1 gigabyte (GB)
1024 gigabytes = 1 terabyte (TB)
1024 terabytes = 1 petabyte (PB)
1024 petabytes = 1 exabyte (EB)
1024 exabytes = 1 zettabyte (ZB)
1024 zettabytes = 1 yottabyte (YB)
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