1D0-541 Online Practice Questions and Answers

Consider the relation shown in the exhibit. Which of the following SQL statements would return a relation that excludes all customers with a Satisfaction_Rate of less than or equal to 80 unless the Sales_Office is located in Atlanta?

A. SELECT * FROM Customers WHERE Satisfaction_Rate > 80 OR Sales_Office = Atlanta;

B. SELECT * FROM Customers WHERE Satisfaction_Rate <= 80 AND Sales_Office = Atlanta;

C. SELECT * FROM Customers WHERE Satisfaction_Rate >= 80;

D. SELECT * FROM Customers

WHERE Satisfaction_Rate >= 80

AND NOT Sales_Office = Atlanta;

Which mechanism provides database users with controlled access to the database through the use of virtual tables?

A. View

B. Data dictionary

C. Database control language

D. Database management system

Your enterprise is creating a relation (shown in the exhibit) that tracks parts and suppliers. Which situation would occur if new supplier information were entered in the relation before any information about specific parts?

A. An update anomaly and an insertion anomaly would occur.

B. An insertion anomaly would occur.

C. A deletion anomaly would occur.

D. A deletion anomaly and an update anomaly would occur.

Your enterprise has created a database and database application. The testing phase for the project has started. Which of the following best describes white-box testing of the projects software?

A. The database designer tests the software because he or she is able to make necessary changes to the underlying code for the software.

B. A user who has no knowledge of the softwares underlying code tests the software.

C. Someone other than the database designer tests the software. This person has no access to the underlying code and attempts to use the software only in ways not considered by the software designers.

D. A person tests the software and submits suggestions to the software's underlying code. This person is someone other than the database designer, but has access to the softwares underlying code.

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

A. Integrity

B. Privacy

C. Availability

D. Confidentiality

Which subset of Structured Query Language (SQL) is used to limit access to a database or its data?

A. Data Definition Language

B. Data Control Language

C. Data Entity Language

D. Data Manipulation Language

Consider the entity-relationship (ER) diagram shown in the exhibit. Which type of relationship between the two entities is shown?

A. m:m

B. m:n

C. 11

D. 1n

Consider the Orders relation shown in the exhibit. Which of the following SQL statements would replace the value in the Sales_Rep_No column with 110 everywhere that Sales_Rep_No 108 is listed?

A. UPDATE Sales_Rep_No IN Orders SET(Sales_Rep_No = 110 WHERE Sales_Rep_No = 108);

B. UPDATE Orders SET Sales_Rep_No = 110 WHERE Sales_Rep_No = 108;

C. UPDATE Orders SET Sales_Rep_No = 110;

D. UPDATE Orders WHERE Sales_Rep_No = 108 SET Sales_Rep_No = 110;

Which pair of relational algebraic operations requires union compatibility?

A. Projection and Cartesian product

B. Selection and projection

C. Intersection and difference

D. Cartesian product and intersection

Your enterprise is involved in planning a database project. The exhibit shows the result of one phase of the database design life cycle. Which term best describes the diagram shown in the exhibit?

A. Information Engineering (IE) data model

B. Corporate data model

C. Database requirements model

D. Entity Relation Data (ERD) model