In file structures and linked data organization, a record chain in which the last record points back to the first record (forming a closed ring) is called what?

Introduction / Context:Linked structures are fundamental to file organization and memory representation. When records are linked in a cycle so that traversal returns to the starting record, the structure forms a ring. Recognizing this pattern matters for traversal logic, termination conditions, and certain algorithms like round-robin scheduling.

Given Data / Assumptions:

• Records are connected via links or pointers.
• The last record references the first, creating a cycle.
• Terminology comes from data structure conventions.

Concept / Approach:

A chain where the tail points to the head forms a loop (circular list). Without a proper stopping rule, traversal can continue indefinitely. Implementations often include a sentinel or track visited nodes to avoid infinite loops during processing or debugging.

Step-by-Step Solution:

Verification / Alternative check:

Textbooks on data structures describe singly/doubly linked circular lists that exhibit loop properties; detection uses algorithms like Floyd’s cycle-finding method.

Why Other Options Are Wrong:

Pointer/addressing/location: Components of linking, not the overall cyclic structure.

None: Incorrect because a standard term exists.

Common Pitfalls:

Failing to include a termination condition when iterating over circular structures, causing non-terminating processes.

Final Answer:

loop