It c170 Study guides, Class notes & Summaries

IT WGU C170 Performance Assessment Section 1 First Normal Form I gathered all the data from the sales invoice and created an unnormalized dataset. I determined the primary key that provided me with a unique value for all my records in this table. I used composite primary keys because both keys would be able to uniquely identify all the data in the table. Finally, I removed all the repeating groups and made the address atomic by creating separate fields for each one.

WGU C170 DATA MANAGEMENT – APPLICATIONS EXAM 2024 WITH 100% CORRECT ANSWERS In data modeling, the construct used to organize and describe an attribute's set of possible values - correct answer domain An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. - correct answer superkey A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey - correct answer candidate key The pr...

WGU C170 IT - Performance Assessment Questions and Answers (2024) (Verified Answers)

IT WGU C170 Performance Assessment.Questions And Answers Latest Update 2024.Guaranteed Success.IT WGU C170 Performance Assessment.Questions And Answers Latest Update 2024.Guaranteed Success.

WGU C170 Pre- Assessment (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A Q: In this entity-relationship diagram, Salesperson 361 is related to two customers. The table follows the restrict delete rule. What happens if someone tries to delete Salesperson 361 from the customer records? Answer: The delete is prohibited. Q: Refer to the given SQL statement. CREATE TABLE member ( member_id INT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY KEY...

WGU C170 Exam (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A Q: What are homonyms and synonyms, and why should they be avoided in database design? Answer: Homonyms appear when more than one attribute has the same name. Synonyms exist when the same attribute has more than one name. Avoid both to avoid inconsistencies. Q: How would you implement a 1:M relationship in a database composed of two tables? Answer: A car is owned just by one custome...

WGU C170 Exam (New 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Graded A QUESTION What type of integrity is enforced when a primary key is declared? Answer: Creating a primary key constraint enforces entity integrity (i.e. no part of the primary key can contain a null and the primary key values must be unique). QUESTION What is a recursive relationship? Given an example. Answer: A recursive relationship exists when an entity is related to itse...

WGU C170 Terms.|Latest Update Complete with A+ Graded Answers Associative Entity All relationships for the (...) entity should be many. Attribute An (...) is a property or characteristic of an entity. Binary relationship A (...) is a relationship between two entity types. Cardinality (...) represents the maximum number of entities that can be involved in a particular relationship. Cascade Delete Will delete all records that reference the primary key Database A (.....

C170 2023 Latest Update Correct Questions & Answers(graded A+) C170 2023 Latest Update Correct Questions & Answers(graded A+) Access plan - ANSWER A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. Alias - ANSWER An alternative name for a column or table in a SQL statement. ALTER TABLE - ANSWER The SQL command used to make changes to tabl...

Data Management Applications C170 What is a table? A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. What are the characteristics of a relational table? The characteristics of a relational table are that a table is perceived as a two-dimensional structure composed of rows and columns, each row (tuple) represents a single entity occurrence within the set, each column represents an attribute, each column has a dis...