42. Which code below can replace the missing code to select data that is less than the targetValue and even? Assume all variables have been properly initialized. IF < missing code > { DISPLAY ("Found it!") } (A) (num MOD 2=0) OR (targetValue num) AND (targetValue MOD 2=0) (C) (num MOD 2 = 0) AND (targetValue> num) (D) (targetValue> num) OR (NOT(num MOD 2 > 0)) 43. Which type(s) of statement is needed to find all records in a list that are positive? (A) Sequential and iterative (B) Selection and sequential (C) Selection (D) Iterative and selection 44. Grace and Ada write algorithms and test them with increasingly large datasets. Algorithm 1 is still run- ning while algorithm 2 completed before midnight. What can you determine about the algorithms? (A) One has an exponential efficiency and two has a polynomial efficiency. (B) One has a polynomial efficiency and two has an exponential efficiency. Q(C) +ne is unsolvable and two is decidable. (D) One is decidable and two is unsolvable.

42. Which code below can replace the missing code to select data that is less than the targetValue and even? Assume all variables have been properly initialized. IF < missing code > { DISPLAY ("Found it!") } (A) (num MOD 2=0) OR (targetValue num) AND (targetValue MOD 2=0) (C) (num MOD 2 = 0) AND (targetValue> num) (D) (targetValue> num) OR (NOT(num MOD 2 > 0)) 43. Which type(s) of statement is needed to find all records in a list that are positive? (A) Sequential and iterative (B) Selection and sequential (C) Selection (D) Iterative and selection 44. Grace and Ada write algorithms and test them with increasingly large datasets. Algorithm 1 is still run- ning while algorithm 2 completed before midnight. What can you determine about the algorithms? (A) One has an exponential efficiency and two has a polynomial efficiency. (B) One has a polynomial efficiency and two has an exponential efficiency. Q(C) +ne is unsolvable and two is decidable. (D) One is decidable and two is unsolvable.

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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