A Test On Gigabyte

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| By Livyn

Livyn

Community Contributor

Quizzes Created: 304 | Total Attempts: 157,541

Questions: 10 | Attempts: 156 | Updated: Mar 21, 2023

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As a matter of fact, even your phone is made up of gigabytes. Your laptop also, and internet subscription is made up of gigabytes. So, this is the reason why I believe this test should be too easy for you.

Questions and Answers

1.

After the one, how many zeros does a byte have if you're describing a gigabyte with it?
- A.
  
  15
- B.
  
  6
- C.
  
  12
- D.
  
  9
Correct Answer
D. 9

Explanation
A byte consists of 8 bits. To describe a gigabyte, we need to convert it to bits. 1 gigabyte is equal to 8 billion bits. Since a byte has 8 bits, we divide 8 billion by 8 to get the number of bytes in a gigabyte, which is 1 billion. The question asks for the number of zeros in a byte when describing a gigabyte, so the answer is 9.

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2.

Which one best describes it?
- A.
  
  1024
- B.
  
  1024^2
- C.
  
  1024^3
- D.
  
  1024^9
Correct Answer
C. 1024^3

Explanation
The correct answer is 1024^3, which represents 1024 raised to the power of 3. This means that 1024 is multiplied by itself three times. Therefore, the answer is 1,073,741,824.

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3.

A single layer DVD+R can hold how many gigabytes?
- A.
  
  1.9
- B.
  
  2.5
- C.
  
  4.7
- D.
  
  6
Correct Answer
C. 4.7

Explanation
A single layer DVD+R can hold 4.7 gigabytes.

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4.

How many gigabytes can a dual-layered DVD+R disc hold?
- A.
  
  8.5
- B.
  
  8.4
- C.
  
  8.3
- D.
  
  8.6
Correct Answer
A. 8.5

Explanation
A dual-layered DVD+R disc can hold 8.5 gigabytes of data. This type of disc has two layers of data storage on one side, allowing for a larger storage capacity compared to single-layer discs. The 8.5 gigabytes of storage space is useful for storing large files, such as high-definition videos or large software programs.

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5.

A PS4 disc can store how many gigabytes?
- A.
  
  20
- B.
  
  45
- C.
  
  25
- D.
  
  50
Correct Answer
D. 50

Explanation
A PS4 disc can store 50 gigabytes. This is the correct answer because the storage capacity of a PS4 disc is 50 gigabytes, allowing users to store games, data, and other content on the disc.

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6.

At 2.2 Mbit/s and totalling 1 gigabyte—what's the duration of the SDTV video?
- A.
  
  One hour and a half hours
- B.
  
  One hour
- C.
  
  Two hours
- D.
  
  Three and a half hours
Correct Answer
B. One hour

Explanation
The given information states that the video has a total size of 1 gigabyte and is being transmitted at a rate of 2.2 Mbit/s. To determine the duration, we can convert the total size of the video from gigabytes to bits. Since 1 gigabyte is equal to 8 gigabits, the video has a total size of 8 gigabits. Dividing this by the transmission rate of 2.2 Mbit/s, we get approximately 3.64 seconds. Therefore, the duration of the SDTV video is approximately one hour.

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7.

Like the picture says, how much do you think you're stacking at the lowest?
- A.
  
  500 terabytes
- B.
  
  1000 terabytes
- C.
  
  5000 terabytes
- D.
  
  10000 terabytes
Correct Answer
D. 10000 terabytes
8.

1 GiB can be translated to
- A.
  
  1.24 GB
- B.
  
  1.00 GB
- C.
  
  1 074 GB
- D.
  
  1.024 GB
Correct Answer
C. 1 074 GB

Explanation
The correct answer is actually 1.024 GB, not 1 074 GB. The term "GiB" stands for "gibibyte" which is a unit of digital information storage. It is a binary multiple of a byte, meaning it is based on powers of 2. 1 GiB is equal to 1.024 GB, where "GB" stands for "gigabyte" which is a decimal multiple of a byte based on powers of 10.

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9.

Photoshop 2018 will take how many GB on Windows (64-bit)?
- A.
  
  3.5
- B.
  
  2.9
- C.
  
  2.6
- D.
  
  3.1
Correct Answer
D. 3.1

Explanation
Photoshop 2018 will take 3.1 GB on Windows (64-bit). This means that the software will require 3.1 gigabytes of storage space on a computer running the 64-bit version of the Windows operating system.

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10.

A 500 GB hardisk is reported as what in Windows?
- A.
  
  458 GB
- B.
  
  465 GB
- C.
  
  486 GB
- D.
  
  495 GB
Correct Answer
B. 465 GB

Explanation
In Windows, a 500 GB hard disk is reported as 465 GB. This is because of the difference in the way storage capacity is calculated. Manufacturers use the decimal system, where 1 GB is equal to 1 billion bytes. However, Windows uses the binary system, where 1 GB is equal to 1,073,741,824 bytes. As a result, when Windows calculates the storage capacity, it shows a slightly lower value, which in this case is 465 GB.

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