1D0-541 Exam Dumps - CIW v5 Database Design Specialist

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Question # 4

Which term describes an attribute or combination of attributes that uniquely identifies a row in a relation?

Entity

Domain

Primary key

Attribute group

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Question # 5

Which area of database security involves maintaining access to enterprise data?

Theft

Privacy

Availability

Confidentiality

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Question # 6

What improvement can be made to file-based databases to overcome their limitations?

Implement a tabular structure.

Gather files in a distributed repository.

Use a hierarchical database file system.

Tightly couple database structure to database application programs.

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Question # 7

Consider the following relational algebraic expression: Which of the following SQL statements is equivalent to this relational algebraic expression?

SELECT*FROM Customers,

Employees WHERE Sales_Rep_No = Cust_No;

SELECT Cust_No, Cust_Name, Emp_Name, Emp_Loc FROM

Customers, Employees WHERE Customers.Sales_Rep_No =

Employees.Sales_Rep_No;

SELECT Cust_No, Cust_Name, Emp_Name, Emp_Loc FROM

Customers, Employees WHERE Employees.Sales_Rep_No =

Customers.Sales_Rep_No;

SELECT * FROM Customers, Employees WHERE

Customers.Sales_Rep_No = Employees.Sales_Rep_No;

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Question # 8

Consider the Registration relation shown in the exhibit. Which of the following SQL statements would return all tuples that have course codes beginning with the letter M?

SELECT * FROM

Registration WHERE

Course_Code = #

SELECT * FROM

Registration WHERE

Course_Code LIKE _

SELECT* FROM

Registration WHERE

Course_Code LIKE %

SELECT * FROM

Registration WHERE

Course Code = %