1D0-541 CIW v5 Database Design Specialist exact Exam Questions

CIW v5 Database Design Specialist

Last Update 4 hours ago Total Questions : 124

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Question # 11

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

m:m

m:n

1:1

1:n

Question # 12

The exhibit shows a relation for a company projects. Which candidate key(s) would best serve as the primary key for this relation?

S_Date and E_Date

ProjJD

ltem_Num and E_Date

Proj_ID and Item_Num

Question # 13

Which process is used to prevent the current database operation from reading or writing a data item while that data item is being accessed by another operation?

Lock

Deadlock

Time stamp

Transaction

Question # 14

Which type of dependency occurs when one attribute of a composite key is removed and the dependency still exists?

1:1

Transitive

Functional

Partial functional

Question # 15

Which three pieces of information did E.F. Codd describe as necessary to retrieve a data value from a relational database?

Attribute, domain, and tuple

Entity, relation name, and domain

Table name, primary key, and entity

Attribute, relation name, and primary key

Question # 16

Consider the table for an employee database shown in the exhibit. What is the degree of the table?

Question # 17

Consider the Dept1_Parts and Dept2_Parts relations shown in the exhibit. Which of the following SQL statements would create a set difference of the two relations with the widest variety of Structured Query Language dialects?

SELECT * FROM

Dept1_Parts

EXCEPT(SELECT

PartJD FROM

Dept2_Parts);

SELECT * FROM

Dept1_Parts MINUS

(SELECT Part_ID

FROM Dept2_Parts);

SELECT * FROM

Dept1_Parts

DIFFERENCE

(SELECT Part_ID

FROM Dept2_Parts);

SELECT * FROM

Dept1_Parts WHERE

Part_ID NOT IN

(SELECT Part_ID FROM

Dept2_Parts);

Question # 18

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

File locking

User authorization

Parity checks

Integrity controls

Question # 19

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

CREATE

CREATE TABLE

CREATE DOMAIN

CREATE SCHEMA

Question # 20

Several SQL operations are performed by User 1 to access the Fee information for Bowling in the Act_Fee relation (shown in the exhibit). The first access returns a fee of 50. An unrelated SQL operation by another user updates the Bowling fee to 60. The second access by User 1 returns a fee of 60. What problem has occurred?