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Question 1: List the cost functions for the SELECT and JOIN operations.
Question 2: What are the cost functions of the SELECT operation for a linear search and a binary search?
Question 3: Consider the relations R(A, B, C), S(C, D, E) and T(E, F), with primary keys A, C and E, respectively. Assume that R has 2000 tuples, S has 3000 tuples, and T has 1000 tuples. Estimate the size of R ? S ? T and give an efficient strategy for computing the join.
Question 4: What is meant by semantic query optimization?
Question 5: What are heuristic optimization algorithms? Discuss various steps in heuristic optimization algorithm.
If x = 5, y = 6, z = 4, and w = 3.5, evaluate each of the following statements, if possible. If it is not possible, state the reason.
If this is psudocode for encryption feistel cipher determine decryption algorithm?Output: ciphertext = (left[16], right[16]) Explain pseudo-code of corresponding decryption algorithm for this cipher.
Devise a linear-time algorithm to count the parallel edges in a graph. Write the algorithm in pseudocode.
Determine an algorithm which works directly with this graph representation, and calculates minimum number of semesters necessary to complete the curriculum.
Create an Algorithm to implement the given function and explain how the required task can be achieved in a step by step process.
How to design algorithms to implement stack operations. Write down the program to multiply any two matrices. (Using Basic).
Write the algorithm, using pseudocode, to do the following task, Given the string of numbers, recognize all the substrings which form numbers which are divisible by 3.
A file has r=20,000 student records of fixed-length. Suppose the file is ordered by SSN; compute the number of blocks it takes to search for a record given its SSN value by doing a binary search.
1.create a flowchart to show the process that will allow the implementation of stack push and pop operations.2.create a
Devise an algorithm that generates an access control matrix A for any given history matrix H of the Chinese Wall model. A significant portion of the grade for this problem involves your justification of your algorithm.
Determine which of the following commands is used to create an array?
Use the Diffie-Hellman public-key algorithm to exchange secret keys.
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