`Hey,
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8) OPTION D IS CORRECT
9) OPTION B IS CORRECT
10) OPTION A IS CORRECT
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8. All of the following are algorithms to evaluate join, except: a. Nested loop b. Index-nested...
8. All of the following are algorithms to evaluate join, except: a. Nested loop b. Index-nested loop c. Sort-merge d. B+-tree 9. All the following DDL commands, except: a. Create C. Drop b.Select d. Alter 10. The following rule must be maintained by the DBMS to ensure data consistency: a. All of these b. Referential integrity constraints C. Attribute domain constraints d. Entity integrity constraints
Which of the following statements about COMMIT and ROLLBACK commands is incorrect? A. All DML commands (INSERT, UPDATE, DELETE) are explicitly committed and cannot be rolled back. B. All DDL commands (CREATE, TRUNCATE, ALTER TABLE) are explicitly committed and cannot be rolled back. C. A ROLLBACK command will reverse all DDL operations performed since the last COMMIT was performed. D. all of the above
Match the following words and explanations Domain Integrity Entity integrity Referential Integrity Explanations: A: All values in a single column belong to the same scope of meaning B: Each primary key value must have a matching value in the Foreign Key C: The table has a primary key, which may be NULL D: Each Foreign Key value must have a matching value in the Primary key E: The table has a Primary key, which is never NULL
6. With respect to database systems, which of the following statement(s) is (are) true? a. The physical view of data is how people conceptually organize and understand the relationships among data items. b. The DML builds the data dictionary, creates the database, describes logical views for each user, and specifies security constraints. c. A record layout shows the items stored in a file, including the type of data stored and both the order and length of the data fields. d....
6. The control environment includes all of the following COSO Principles of Internal Control, EXCEPT A : the organization demonstrates a commitment to integrity and ethical values. B : the organization identifies risks to the achievement of its objectives across the entity and analyzes risk as a basis for determining how the risks should be managed. C : the organization holds individuals accountable for their internal control responsibilities in the pursuit of objectives. D : the board of directors demonstrates...
Which of the following graph algorithms is designed specifically to accept negative edge weights? Check all that apply. a. topological sort b. Dijkstra's algorithm c. Bellman-Ford algorithm d. unweighted shortest path algorithm
The Directivity Index of a sonar array depends on all of the following except: (a) The physical dimensions of the array. (b) The speed of sound in the water. (c) The layout of the hydrophones in the array. (d) The efficiency of the array.
25. All af the following are external environmental factors EXCEPT: A Legal restrictions B. Organizational values and principles. C. Competitive movements D. Economic conditions. 26. Organizational process assets IOPAs in luence the management of projects. Which one of the following best describes the important categories of OPAs? A Organizational knowledge bases and processes. B. Processes, policies, procedures, tools, and techniques C. Organizational knowledge bases, processes, policies, and procedures. D. Organizational knowledge bases, tools, and techniques 27. The organization's processes and...
Gaining an understanding of entity-level internal control components helps in all of the following ways, EXCEPT A : gaining an understanding of the types of transactions that represent the most risk to the entity. B : gaining an understanding of the client's business and financial reporting risks. C : making assessments of the various types of risks of material misstatement. D : establishing the appropriate level of professional skepticism.
1. Which of the following algorithms requires the most extra space when implemented? A. Quicksort B. Mergesort C. Radix sort D. All use the same amount of extra space 2. Sort this array into ascending order: 80 90 70 85 60 40 50 95. Assume the pivot is 40. (SHOW WORK) A. (40) and (50 60 70 80 85 90 95) B. () and (80 90 70 85 60 50 95) C. () and (50 60 70 80 85 90...