The two basic types of record access methods area.sequential and randomb.direct and immediatec.sequential onlyd.on-line and real-time
Question
The two basic types of record access methods are:
a. sequential and random
b. direct and immediate
c. sequential only
d. on-line and real-time
Solution
The correct answer is a. sequential and random.
Explanation:
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Sequential Access: In this method, records are accessed in a predetermined order. To retrieve a specific record, all preceding records must be accessed first. This is commonly used in applications like tape drives or for processing files when the order of data is essential.
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Random Access: This method allows direct access to any record in the dataset without needing to process the preceding records. It is commonly used in hard drives and other storage devices where speed and efficiency of data retrieval are important, such as databases.
These two methods are fundamental for understanding how data can be stored and accessed in computing.
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