Question

Two basic types of record access methods are
A. sequential and random
B. direct and immediate
C. sequential and indexed
D. online and real time

Answer 1

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$\underline\red{\mathbb{ANSWER}}$

Two basic types of record access methods are

A. sequential and random

B. direct and immediate

C. sequential and indexed✔️✔️

D. online and real time

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Answer 2

Answer:

Two basic types of record access methods are

A. sequential and random

Explanation:

The two basic types of record-access methods are sequential and random.

The terms random access and sequential access are often used to describe data files. A random-access data file enables you to read or write information anywhere in the file. In a sequential-access file, you can only read and write information sequentially, starting from the beginning of the file.

Comparing random versus sequential operations is one way of assessing application efficiency in terms of disk use. Accessing data sequentially is much faster than accessing it randomly because of the way in which the disk hardware works.

In computing, sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM) where data can be accessed in any order. Sequential access devices are usually a form of magnetic storage or optical storage.