![]() ![]() This will clear the initial doubt, and you will get to know what specific detail the interviewer wants to consider in this service. If no encoding is specified, UTF-8 will be used. Ask questions to identify the scope of the system. Python String encode () Method String Methods Example Get your own Python Server UTF-8 encode the string: txt 'My name is Stle' x txt.encode () print(x) Run example Definition and Usage The encode () method encodes the string, using the specified encoding. Requirementīefore you jump into the solution always clarify all the assumptions you’re making at the beginning of the interview. Let’s start by talking about the requirement first… 1. In this kind of question, the interviewer wants a high-level design idea where you can give the solution for the scalability and durability of the service. Most of the candidates make mistakes here and immediately they start listing out some bunch of tools, databases, and frameworks. When you’re asked this question in your interviews don’t jump into the technical details immediately. ![]() Ronald Rivest designed this algorithm in 1991 to provide the means for digital signature verification. It represents the digests as 32 digit hexadecimal numbers. Is it really simple? Absolutely not if we think about the scalability of this service. MD5 (Message Digest Method 5) is a cryptographic hash algorithm used to generate a 128-bit digest from a string of any length. In this tutorial, we will use this library to generate the message digest for the input string. It includes the MD5 algorithm, secure hash algorithms like SHA1, SHA224, SHA256, and SHA512. In the article they even state how it takes only 6 characters of base 64 to yield 68.7 billion possibilities. Encoding those 1's and 0's with base 64 considerably shortens the number of characters needed to represent the hash. When a user gives a long URL converts it into a short URL and updates the database and when the user hits the short URL then search the short URL in the database, get that long URL, and redirect the user to the original URL. MD5 hash using Python Python consists of a library hashlib which is a common interface to various hashing and message digest algorithms. Naively using those 1's and 0's in your url makes it unnecessarily long. ISRO CS Syllabus for Scientist/Engineer ExamĪ lot of candidates might be thinking that designing this service is not difficult.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.DevOps Engineering - Planning to Production.Python Backend Development with Django(Live).Android App Development with Kotlin(Live).Full Stack Development with React & Node JS(Live). ![]()
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