CIW 1D0-541 Actual Free Exam Questions & Community Discussion

Which of the following best describes the information contained in the data dictionary (or system catalog)?

Consider the Recreation relation in the exhibit. A data operation that changes one of the tuples for Student_ID 1003 must be performed. It is necessary to change one of the activities from swimming to tennis. The Student_ID and Activity attributes make up the primary key for the Recreation relation. All related information must be altered, as well. Which SQL statement or statements would best accomplish this?

NULL) Primary Key Class_Num Consider the Information Engineering diagram shown in the exhibit. Which DBDL definition best describes this diagram?

Which subset of Structured Query Language (SQL) is used to perform operations such as data retrieval or deletion on the data contained in a database?

In which phase of database design do you identify entities, attribute domains, and relationships?

Consider the relational database shown in the exhibit. What is the foreign key in this database?

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

FROM Registration WHERE
Consider the following relational algebraic expression: Which of the following SQL Course_Code =
'A4343';
statements is equivalent to this relational algebraic expression?

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

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?