The schedule r3 (X); r2 (X); w3(X); r1(X); w1(X) is conflict serializable

A strict schedule is often non-recoverable

You have been hired as the project manager by a leading financial services company and are in the planning phase. Your task is to sequence four projects in a way that minimizes the total cost of delay. Consider the build duration and the value (revenue per week) of each project. Determine the best sequence for these projects. In addition, calculate the total cost of delay based on your sequencing. (note: enter the total cost of delay in whole number please – no decimals, no cents, no comma, no dollar sign). Project Build Duration (weeks) Value (revenue/week) Project A 2 10,000 Project B 4 40,000 Project C 6 90,000 Project D 8 80,000   Recommended Sequence: First  [c1] Second  [c2] Third  [c3] Fourth  [c4] Total Cost of Delay (enter whole dollars):  [c5]

A unnormalized table’s data redundancies may cause the following anomalies:

What is the best choice for an index for the following query: select name, age from employee where age > 21 and age < 65;

Given R(A, B, C) with state: A B C a f m a g m b h m b i n c j n c k n The functional dependency {B,C} → A holds for the database state shown. (true or false)

What makes BTree a good choice for an index (choose best statement)

What is the best choice for an index for the following query: select name, birthday from employee where birthday > ‘1992-01-10’;

You have been tasked with reviewing the current state of business processes in a bank and recommending which process steps should be automated in the first phase of digital transformation. Your goal is to identify processes where automation can significantly improve efficiency, reduce errors, or enhance customer satisfaction. From the list below, select two activities you would prioritize for automation (select two):

Given R(A, B, C) with state: A B C a f m a g m b h m b i n c j n c k n The functional dependency {A,C} → B holds for the database state shown. (true or false)