Questions and Answers
What is the maximum capacity of disk storage as of 2021?
112TB
What is the key characteristic of optical storage media?
Requires a spinning disk and laser to read/write data
What is the main difference between fixed-length and variable-length records?
Fixed-length records have a predefined size, while variable-length records can be of any size
What is the purpose of the file descriptor or file header?
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What is the main purpose of blocking when storing records on disk?
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Which type of storage media is the fastest and most costly?
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Which of the following is a characteristic of main memory?
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What is a key advantage of flash memory over main memory?
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Which of the following statements about magnetic disks is true?
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What is the primary medium for long-term storage of data in a database system?
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