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NEW QUESTION 1
Using the Customer and Sales_Rep relations shown in the exhibit, you must datermine a relational algebraic expression that will result in the following relation:
1D0-541 dumps exhibit
Which of the following relational algebraic expressions would result in this relation?1D0-541 dumps exhibit
1D0-541 dumps exhibit

  • A. Customer X Sales_Rep
  • B. (Sales_Rep.Sales_Rep_No = Customer.Sales_Rep_No (Sales_Rep X Customer))
  • C. (Customer X Sales_Rep) ? Sales_Rep.Sales_Rep_No = Customer.Sales_Rep_No
  • D. Customer.Sales_Rep_No = Sales.sales_Rep_No (Customer X Sales_Rep)

Answer: A

NEW QUESTION 2
To create a view, what are the minimal privileges that a user must have for the relations used to make the view?

  • A. GRANT
  • B. REVOKE
  • C. SELECT
  • D. CREATE VIEW

Answer: C

NEW QUESTION 3
What is the most important service provided by a database management system?

  • A. Provides support for a data manipulation language
  • B. Allows users to store data in a distributed data repository
  • C. Provides support for data formatting language commands
  • D. Translates procedural commands into non-procedural commands

Answer: A

NEW QUESTION 4
What is a data dictionary?

  • A. A system catalog containing user data
  • B. An area of the database that is directly accessible by the user
  • C. Data that is stored in tables and is only accessible by the DBMS
  • D. Metadata that is stored in tables and is only accessible by the DBMS

Answer: D

NEW QUESTION 5
Consider the Information Engineering diagram shown in the exhibit for a building management company. Referential integrity must be maintained such that a building cannot be deleted when it has residents. Building_ID, R_ID, Room_Count and Room_Num are integer numbers, whereas Bldg_Name, Location and Res_Name are all represented by variable-length strings with a maximum of 20 characters. Which SQL statement best implements the relations shown in this diagram?
1D0-541 dumps exhibit

  • A. 1D0-541 dumps exhibitCREATE TABLE BUILDING (Building_ID INTEGER NOT NULL PRIMARY KEY,Bldg_Name VARCHAR (20),Location VARCHAR (20), Room_Count INTEGER ); CREATE TABLE RESIDENT ( R_ID NOT NULL PRIMARY KEY,Room_Num INTEGER, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL,FOREIGN KEY Building_ID REFERENCES RESIDENT (Building_ID) ON DELETE NO CHECK);
  • B. CREATE TABLE BUILDING (Building_ID INTEGER NOT NULL PRIMARY KEY,Bldg_Name VARCHAR (20),Location VARCHAR (20), Room_Count INTEGER ); CREATE TABLE RESIDENT ( R_ID NOT NULL PRIMARY KEY,Room_Num INTEGER, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL,FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID) ON DELETE NO CHECKON UPDATE CASCADE);
  • C. CREATE TABLE BUILDING (Building_ID INTEGER NOT NULL PRIMARY KEY,Bldg_Name VARCHAR (20),Location VARCHAR (20), Room_Count INTEGER ); CREATE TABLE RESIDENT ( R_ID NOT NULL PRIMARY KEY,Room_Num INTEGER, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL,FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID) ON DELETE NO CHECKON UPDATE CASCADE);
  • D. 1D0-541 dumps exhibitCREATE TABLE BUILDING (Building_ID INTEGER NOT NULL PRIMARY KEY,Bldg_Name VARCHAR (20),Location VARCHAR (20), Room_Count INTEGER ); CREATE TABLE RESIDENT ( R_ID NOT NULL PRIMARY KEY,Room_Num INTEGER, Res_Name VARCHAR (20), Building_ID INTEGER NOT NULL,FOREIGN KEY Building_ID REFERENCES BUILDING (Building_ID) ON DELETE NO CHECKON UPDATE CASCADE);

Answer: C

NEW QUESTION 6
1D0-541 dumps exhibitWhich of the following best describes the ON DELETE NO ACTION referential integrity constraint?

  • A. If a parent key is deleted, any child keys referenced by the parent key are automatically deleted.
  • B. If a parent key is deleted, no test is made for referential integrity.
  • C. If any child key references a parent key, the record containing the parent key cannot be deleted.
  • D. If a parent key is deleted, all child keys are automatically set to a specified value.

Answer: C

NEW QUESTION 7
Consider the following relations shown in the exhibit. Which of the following SQL statements would return the Customers2 relation from the Customers relation?
1D0-541 dumps exhibit

  • A. 1D0-541 dumps exhibitSELECT *FROM CustomersWHERE Satisfaction_Rate <= 80 OR Satisfaction_Rate >= 90;
  • B. SELECT *FROM CustomersWHERE Satisfaction_Rate IN (80 AND 90);
  • C. SELECT *FROM CustomersWHERE Satisfaction_Rate >= 80 AND Satisfaction_Rate <= 89;
  • D. SELECT *FROM Customers WHERE Satisfaction_Rate BETWEEN (80, 90);

Answer: C

NEW QUESTION 8
A large enterprise uses a two-tier database architecture and runs complex database processing on the client. Which term best describes the client in this system?

  • A. Fat client
  • B. Thin client
  • C. Terminal client
  • D. Enterprise client

Answer: A

NEW QUESTION 9
Consider the following relations shown in the exhibit. Which of the following SQL statements would return the Customers2 relation from the Customers relation?
1D0-541 dumps exhibit

  • A. 1D0-541 dumps exhibitSELECT *FROM CustomersWHERE Satisfaction_Rate <= 80 OR Satisfaction_Rate >= 90;
  • B. SELECT *FROM CustomersWHERE Satisfaction_Rate IN (80 AND 90);
  • C. SELECT *FROM CustomersWHERE Satisfaction_Rate >= 80 AND Satisfaction_Rate <= 89;
  • D. SELECT *FROM Customers WHERE Satisfaction_Rate BETWEEN (80, 90);

Answer: C

NEW QUESTION 10
What is a virtual table?

  • A. A virtual table is a relation created as the result of data manipulation, and is not a permanent part of the database.
  • B. A virtual table is a relation stored in the databases memory; it is used when multiple users access the same relation in a database.
  • C. A virtual table is a relation created from a defined base table; it contains metadata about the base relation.
  • D. A virtual table is a relation that consists of primary and foreign keys for a particular set of relations in a database.

Answer: A

NEW QUESTION 11
What is a domain?

  • A. A normalized set of data applicable to a particular relation
  • B. A combination of attributes for a relation
  • C. A definition of permissible values for one or more attributes
  • D. A set of permissible values for one or more relations

Answer: C

NEW QUESTION 12
Consider the Information Engineering diagram in the exhibit showing a conceptual data model of the relations BUILDING and RESIDENT. What is the next step in refining the data model?
1D0-541 dumps exhibit

  • A. 1D0-541 dumps exhibitCreate intermediate entities.
  • B. Create a logical data model.
  • C. Resolve many-to-many relationahips.
  • D. Identify and resolve complex relationships.

Answer: B

NEW QUESTION 13
A foreign key maps to a:

  • A. prime key.
  • B. indirect key.
  • C. parent key.
  • D. composite key.

Answer: C

NEW QUESTION 14
Which database security technique prevents invalid data from being entered into the database?

  • A. File locking
  • B. User authorization
  • C. Parity checks
  • D. Integrity controls

Answer: D

NEW QUESTION 15
Which statement is used to define a named group of related tables, views, domains and other database objects?

  • A. CREATE ENTITY
  • B. CREATE INDEX
  • C. CREATE DOMAIN
  • D. CREATE SCHEMA

Answer: D

NEW QUESTION 16
Your enterprise must decide whether to use a database management system. Which of the following lists four advantages of using a DBMS?

  • A. Management of data redundancy, increased data integrity, increased data dependence, and increased application complexity
  • B. Consistency of data, adherence to standards, managed concurrency, and increased software complexity
  • C. Increased data access, increased data backup and recovery, data sharing, and consistency of data
  • D. Increased data security, increased data integrity, increased data independence, and decentralization of data

Answer: C

NEW QUESTION 17
Which subset of Structured Query Language (SQL) is used to create and name database entities?

  • A. Data Control Language
  • B. Database Entity Language
  • C. Data Definition Language
  • D. 1D0-541 dumps exhibitData Manipulation Language

Answer: C

NEW QUESTION 18
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