Data structure and advance programming: For an open hashing scheme with 1000 buckets and 2000 records,What is the maximum number of reads it takes to locate a record ?*show all work*
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Data structure and advance programming:
For an open hashing scheme with 1000 buckets and 2000 records,
What is the maximum number of reads it takes to locate a record ?
*show all work*
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- which index is also reffered to as a non-clustering index? a) Bidirectional Index b) Primary Index c) Hash Index d) Secondary Indeximport hashlib def hash_function(password, salt, al): if al == 'md5': #md5 hash = hashlib.md5(salt.encode() + password.encode()) hash.update(password.encode('utf-8')) return hash.hexdigest() + ':' + salt elif (al == 'sha1'): #sha1 hash = hashlib.sha1() hash.update(password.encode('utf-8')) return hash.hexdigest() + ':' + salt elif al == 'sha224': #sha224 hash = hashlib.sha224() hash.update(password.encode('utf-8')) return hash.hexdigest() + ':' + salt elif al == 'sha256': #sha256 hash = hashlib.sha256() hash.update(password.encode('utf-8')) return hash.hexdigest() + ':' + salt elif al == 'blake2b': #blake2b512 hash = hashlib.blake2b() hash.update(password.encode('utf-8')) return hash.hexdigest() + ':' + salt else: print("Error: No Algorithm!") if __name__ == "__main__": # TODO: create a list called hash_list that contains # the five hashing algorithsm as strings # md5, sha1, sha224, sha256, blake2b hash_list =…Password Cracking Each student should be able to access* one PassXX.hash file. This file contains 4 unsalted md5 password hashes (md5 is commonly used for hashing passwords, though it is a bit weak for modern use. It is very important to salt passwords before hashing them, since leaving them unsalted makes them easier to crack. However, many sites fail to do this). Your assignment is to use Hashcat (or another password cracking or password "recovery" tool) to retrieve the original passwords from the hashes, and submit the password/hash pairs. Each set of hashes contains 1 very easy password and 3 slightly challenging passwords of differing format. Link to hashcat: https://hashcat.net/hashcat/ Note: You will also need one or more dictionaries to perform a dictionary attack. *access: Files are accessible based on your last name. You should see a large number of files that are not accessible due to your account having a wrong last name, and one file that is accessible that lacks…
- The following are applications of hash functions EXCEPT FOR Question 15 options: AES encryption algorithm Storing Passwords File synchronization Digital SignaturesPlease solve thisWhat is a hash function?a) A function has allocated memory to keysb) A function that computes the location of the key in the arrayc) A function that creates an arrayd) A function that computes the location of the values in the array
- Using double Hashing, insert items with keys: 69, 86, 33, 47, 17, 55 into an empty hash table. tableSize: 7 hash1(x) = x mod tableSize. hash₂(x) = R-(x mod R), R is a prime number smaller than tableSize hash1(x) + hash2(x) mod tableSizeWhat is the load factor?a) Average array sizeb) Average key sizec) Average chain lengthd) Average hash table lengthJava - A good guideline for hash tables is that the size should be based on a product of two primes. True or False?
- Question twoAs far as I know, there is no difference between Array lists and Hash tables.Jump to level 1 Hash table valsTable is shown below. The hash function is key % 5. Assume items are inserted at the end of a bucket's list. valsTable: o 50 1 2 12 3 49 After the operations HashInsert(valsTable, item 100) item 26) HashInsert(valsTable, Select the bucket containing the following items: 26 Select 50 Select 0 100 1 2 2 3 5 3 4 Check Next