In lossless compression, how is redundant information typically reduced?
- By discarding data outside the human range of vision
- Through encryption
- Using algorithms to represent repeated patterns
- Increasing image resolution
In binary, adding 1100 and 1011 results in what type of error?
- Syntax
- Logic
- Division by zero
- Overflow
In binary, what is the representation of the denary number 6 using 3-bit binary code?
In hexadecimal, what digit represents the denary number 15?
Which term is used to represent one billion bytes in data storage?
- Petabyte
- Kilobyte
- Megabyte
- Gigabyte
In the context of secondary storage, what does the term "defragmentation" refer to?
- Deleting unnecessary files
- Reorganising data into contiguous files
- Encrypting stored data
- Mirroring data for redundancy
What is the purpose of hexadecimal (base-16) notation in representing data?
- Efficient representation of binary values
- Storing data on external drives
- Measuring data transfer speed
- Grouping bytes for faster processing
What is the purpose of formatting a storage device?
- Increasing storage capacity
- Enhancing data access speed
- Organising data into a specific, contiguous structure
- Deleting all stored data
How is the decimal number 13 represented in binary?
If a hard disk drive has a storage capacity of 1 terabyte and is 80% full, how much space is still available?
