![]() The client visiting the short URL must be redirected to the original long URL.A client (user) enters a long URL into the system and the system returns a shortened URL.URL shortening Service similar to TinyURL, or Bitly.Most of the shortened URLs will be accessed only once after the creation.URL shortening and redirection to the original long URL.What is the reasonable length of a short URL?.Who will use the URL shortener service?.What is the usage pattern of the shortened URL?.What is the anticipated read: write ratio of the system?.How many years should we persist the short URL by default?.What is the amount of Daily Active Users ( DAU) for writes?.Questions to ask the Interviewer Candidate some instant messaging services limit the count of characters on the URL.disguise the underlying URL for affiliates.The reasons to shorten a URL are the following: Figure 1: What is a URL shortening service? Some popular public-facing URL shortening services are and 1. The short URL redirects the client to the URL of the original website. Bloom filter: a memory-efficient probabilistic data structure to check whether an element is present in a setĪ URL shortening service is a website that substantially shortens a Uniform Resource Locator ( URL).Hashing: a one-way summary of data that cannot be reversed and is used to validate the integrity of data. ![]()
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