It's all one question (a) Which of the following are true about Object-Oriented Programming (00P).Choose ALL that apply.A. OOP allows us to define new classesB. Use of inheritance allows us to reuse code without having to rewrite itC. A parent class can have at most one child class in PythonD. ALL methods in the parent class must be overridden by the child class(b) Which of the following are TRUE about a correct recursive algorithm?Choose ALL that apply.A. It must have at least one base caseB. It must have no more than 2 base casesC. The execution of the algorithm must eventually reach a base caseD. The algorithm's runtime must be 0(1) (c) You're reading the docstring of the do_something () method of the Mysteryclass. The docstring says the following:Precondition: Len(self.items) > 148Postcondition: Len(self.items) < 148Assume that the class is designed and documented properly.Which of the following are TRUE? Choose all that apply.A. Len(items) == 147 is a possible representation invariant of MysteryB. Len(items) == 148 is a possible representation invariant of HysteryC. Len(items) == 149 is a possible representation invariant of HysteryD. None of the above is a possible representation invariant of Hystery(d) Given a non-empty binary tree T, let list L1 be the preorder traversal ofT and list L2 be the postorder traversal of T. Which of the following are TRUE?Choose ALL that apply.A. Len(L1) and len(L2) are the saeB. L1 is L2 reversedC. Li[0] is theD. Either L1 or L2 must be a sorted list.same as L2[-1]

(a) Which of the following are true about Object-Oriented Programming (O0P). Choose ALL that apply. A. OOP allows us to define new classes B. Use of inheritance allows us to reuse code without having to rewrite it C. A parent class can have at most one child class in Python D. ALL methods in the parent class must be overridden by the child class (b) Which of the following are TRUE about a correct recursive algorithm? Choose ALL that apply. A. It must have at least one base case B. It must have no more than 2 base cases C. The execution of the algorithm must eventually reach a base case D. The algorithm's runtime must be 0(1)

(a) Which of the following are true about Object-Oriented Programming (O0P). Choose ALL that apply. A. OOP allows us to define new classes B. Use of inheritance allows us to reuse code without having to rewrite it C. A parent class can have at most one child class in Python D. ALL methods in the parent class must be overridden by the child class (b) Which of the following are TRUE about a correct recursive algorithm? Choose ALL that apply. A. It must have at least one base case B. It must have no more than 2 base cases C. The execution of the algorithm must eventually reach a base case D. The algorithm's runtime must be 0(1)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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