Why is a counter plus base62 encoding a common interview answer for short-code generation?

Practice this question from Quiz: Design a URL Shortener, with options and an explanation.

Question

Why is a counter plus base62 encoding a common interview answer for short-code generation?

Option A — Correct answer

It guarantees uniqueness if the ID source is reliable

Option B

It removes the need for a database

Option C

It automatically encrypts URLs

Option D

It makes analytics unnecessary

Quiz: Design a URL Shortener

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